[{"data":1,"prerenderedAt":77},["ShallowReactive",2],{"post-4e3d7182172b875eadc":3,"recom-4e3d7182172b875eadc":22},{"summary":4,"updateTime":5,"title":6,"cateName":7,"content":8,"tags":9,"cover":10,"createTime":11,"cateId":12,"isTop":13,"nickname":14,"siteId":15,"id":16,"isPage":13,"slug":17,"views":18,"status":19,"uid":16,"coverImageUrl":20,"createDate":21,"cate":12,"keywords":9},"Ten Daily Electronic Common Sense-Section 123 Looking for capacitors online purchase? is a reliable marketplace to buy and learn about capacitors. Come with us for amazing deals & information.",1776841239320,"Ten Daily Electronic Common Sense-Section 123","Tutorials","\u003Cfigure class=\"wp-block-image size-large\">\u003Cimg fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" decoding=\"async\" width=\"650\" height=\"303\" src=\"/uploads/2022/11/01-21-650x303.png\" alt=\"\" class=\"wp-image-14223\" srcset=\"uploads/2022/11/01-21-650x303.png 650w, uploads/2022/11/01-21-400x186.png 400w, uploads/2022/11/01-21-250x117.png 250w, uploads/2022/11/01-21-768x358.png 768w, uploads/2022/11/01-21-150x70.png 150w, uploads/2022/11/01-21-800x373.png 800w, uploads/2022/11/01-21.png 869w\" sizes=\"(max-width: 650px) 100vw, 650px\" />\u003C/figure>\r\n\r\n\r\n\r\n\u003Cdiv id=\"ez-toc-container\" class=\"ez-toc-v2_0_69_1 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\r\n\u003Cdiv class=\"ez-toc-title-container\">\r\n\u003Cp class=\"ez-toc-title \" >Table of Contents\u003C/p>\r\n\u003Cspan class=\"ez-toc-title-toggle\">\u003Ca href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\">\u003Cspan class=\"ez-toc-js-icon-con\">\u003Cspan class=\"\">\u003Cspan class=\"eztoc-hide\" style=\"display:none;\">Toggle\u003C/span>\u003Cspan class=\"ez-toc-icon-toggle-span\">\u003Csvg style=\"fill: #999;color:#999\" xmlns=\"http://www.w3.org/2000/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\">\u003Cpath d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\">\u003C/path>\u003C/svg>\u003Csvg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http://www.w3.org/2000/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\">\u003Cpath d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"/>\u003C/svg>\u003C/span>\u003C/span>\u003C/span>\u003C/a>\u003C/span>\u003C/div>\r\n\u003Cnav>\u003Cul class='ez-toc-list ez-toc-list-level-1 ' >\u003Cli class='ez-toc-page-1 ez-toc-heading-level-2'>\u003Ca class=\"ez-toc-link ez-toc-heading-1\" href=\"#Advanced_pre-biased_PWM_control_IC_%E2%80%93_What_is_the_UCC28250_pin_function\" title=\"Advanced pre-biased PWM control IC – What is the UCC28250 pin function?\">Advanced pre-biased PWM control IC – What is the UCC28250 pin function?\u003C/a>\u003C/li>\u003Cli class='ez-toc-page-1 ez-toc-heading-level-2'>\u003Ca class=\"ez-toc-link ez-toc-heading-2\" href=\"#What_are_the_benefits_of_using_subcarrier_modulation_in_RFID_systems\" title=\"What are the benefits of using subcarrier modulation in RFID systems?\">What are the benefits of using subcarrier modulation in RFID systems?\u003C/a>\u003C/li>\u003Cli class='ez-toc-page-1 ez-toc-heading-level-2'>\u003Ca class=\"ez-toc-link ez-toc-heading-3\" href=\"#What_types_of_impulse_noise_are_there\" title=\"What types of impulse noise are there?\">What types of impulse noise are there?\u003C/a>\u003C/li>\u003Cli class='ez-toc-page-1 ez-toc-heading-level-2'>\u003Ca class=\"ez-toc-link ez-toc-heading-4\" href=\"#How_to_distinguish_between_amplifiers_and_comparators\" title=\"How to distinguish between amplifiers and comparators?\">How to distinguish between amplifiers and comparators?\u003C/a>\u003C/li>\u003Cli class='ez-toc-page-1 ez-toc-heading-level-2'>\u003Ca class=\"ez-toc-link ez-toc-heading-5\" href=\"#What_is_the_self-plus_1_minus_1_instruction\" title=\"What is the self-plus 1 / minus 1 instruction?\">What is the self-plus 1 / minus 1 instruction?\u003C/a>\u003C/li>\u003Cli class='ez-toc-page-1 ez-toc-heading-level-2'>\u003Ca class=\"ez-toc-link ez-toc-heading-6\" href=\"#Sensor_selection_technique%EF%BC%9A\" title=\"Sensor selection technique：\">Sensor selection technique：\u003C/a>\u003C/li>\u003Cli class='ez-toc-page-1 ez-toc-heading-level-2'>\u003Ca class=\"ez-toc-link ez-toc-heading-7\" href=\"#What_are_the_development_trends_of_RFID_electronic_tags\" title=\"What are the development trends of RFID electronic tags?\">What are the development trends of RFID electronic tags?\u003C/a>\u003C/li>\u003Cli class='ez-toc-page-1 ez-toc-heading-level-2'>\u003Ca class=\"ez-toc-link ez-toc-heading-8\" href=\"#Problems_that_should_be_paid_attention_to_during_the_operation_of_current_transformer\" title=\"Problems that should be paid attention to during the operation of current transformer:\">Problems that should be paid attention to during the operation of current transformer:\u003C/a>\u003C/li>\u003Cli class='ez-toc-page-1 ez-toc-heading-level-2'>\u003Ca class=\"ez-toc-link ez-toc-heading-9\" href=\"#How_to_maintain_TOUT_at_highlow_level_assuming_the_reverse_bit_has_been_turned_off\" title=\"How to maintain TOUT at high/low level (assuming the reverse bit has been turned off)?\">How to maintain TOUT at high/low level (assuming the reverse bit has been turned off)?\u003C/a>\u003C/li>\u003Cli class='ez-toc-page-1 ez-toc-heading-level-2'>\u003Ca class=\"ez-toc-link ez-toc-heading-10\" href=\"#The_quality_of_the_UWSN_node_deployment_plan_mainly_focuses_on_several_indicators\" title=\"The quality of the UWSN node deployment plan mainly focuses on several indicators?\">The quality of the UWSN node deployment plan mainly focuses on several indicators?\u003C/a>\u003C/li>\u003C/ul>\u003C/nav>\u003C/div>\r\n\u003Ch2 class=\"wp-block-heading\">\u003Cspan class=\"ez-toc-section\" id=\"Advanced_pre-biased_PWM_control_IC_%E2%80%93_What_is_the_UCC28250_pin_function\">\u003C/span>Advanced pre-biased PWM control IC – What is the UCC28250 pin function? \u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h2>\r\n\r\n\r\n\r\n\u003Cul>\u003Cli>VDD (5/12): UCC28250 can work in the range of 4.3 ~ 20V.\u003C/li>\u003Cli>VREF (20/7): The output of this terminal is 3.3V.\u003C/li>\u003Cli>EN(18/5): The following conditions must be met before the controller starts: 1. The voltage at the VDD terminal rises above the threshold value of 4.3V. 2. The 3.3V reference reaches above 2.4V. 3. The junction temperature is lower than l30. C (internal thermal shutdown temperature).\u003C/li>\u003Cli>The voltage at OVP is lower than 0.7V. (4) RT (15/2): The oscillator frequency setting of UCC28250 uses the same external resistor connected between the RT terminal and GND. The selection of the switching frequency is based on the compromise between the size of the components and the frequency, and each output (OUTA, OUTB, SRA, SRB) is half of the oscillation frequency by the following formula.\u003C/li>\u003Cli>SP (13/19): The dead time % between the shutdown of the two synchronous current regulators and the opening of the primary side output is adjusted by an external resistor Rsp, which is connected between SP and GND.\u003C/li>\u003Cli>PS (1 1/18): TofsPl is set by the external resistance Rsp, and is connected between the PS terminal and GND when the dead zone between the primary output shutdown and the synchronous rectification startup. The value of RPs is determined by Figure 10.7.\u003C/li>\u003Cli>RAMP/CS (16/3): UCC28250 can be controlled by voltage type or current type.\u003C/li>\u003Cli>REF/EA (1/8): It is the noninverting input terminal of the internal error amplifier of UCC28250.\u003C/li>\u003Cli>FB/EA one (2/9): FB/EA one is the reverse input terminal of UCC28250 internal error amplifier.\u003C/li>\u003Cli>COMP (3/10): The COMP end is the output end of the internal error amplifier, and the voltage range of the COMP end is 0-3V.\u003C/li>\u003Cli>VSENSE (14/1): The VSENSE terminal is used to connect the detection output voltage and feed it to the transconductance error amplifier. The measured voltage enables the UCC28250 to achieve optimum pre-bias start-up performance.\u003C/li>\u003Cli>SS (13/20): The soft start circuit gradually increases the output voltage of the converter until it reaches a steady state operation, reducing the starting stress and current surge.\u003C/li>\u003Cli>ILIM (17/4): Cycle-by-cycle current limiting, it is recommended to use the ILIM terminal (whether it is a current type or a voltage type).\u003C/li>\u003Cli>HICC: The cycle-by-cycle current-limiting operation time is adjusted by an external capacitor CHIcc (connected from HICC to GND) before the four outputs are turned off.\u003C/li>\u003Cli>OVP/OTP (19/6). The OVP/OTP terminal provides multiple fault protection functions. If the voltage at the 0VP/OTP terminal exceeds 0.7v, a fault shutdown occurs. All outputs stop switching and stop in this state, and the SS terminal level is pulled to GND.\u003C/li>\u003Cli>OUTA and OUTB: These are two switch control signals on the primary side, with 0.2A peak current capability.\u003C/li>\u003Cli>SRA and SRB: These are two synchronous rectification drive signals with 0.2A peak current capability.\u003C/li>\u003Cli>GND (4/11): All signals of the common end of the entire device return from this end.\u003C/li>\u003C/ul>\r\n\r\n\r\n\r\n\u003Ch2 class=\"wp-block-heading\">\u003Cspan class=\"ez-toc-section\" id=\"What_are_the_benefits_of_using_subcarrier_modulation_in_RFID_systems\">\u003C/span>What are the benefits of using subcarrier modulation in RFID systems?\u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h2>\r\n\r\n\r\n\r\n\u003Cp>Each turn-on time of the debugging tube is short, which has little influence on the power supply of the electronic tag. The total on-time of the controller is reduced and the total power loss is reduced. The spectrum of useful information is distributed around the subcarriers rather than around the carrier. It is convenient for the reader to extract the transmitted data information, but the radio frequency coupling loop should have a wider frequency band.\u003C/p>\r\n\r\n\r\n\r\n\u003Cfigure class=\"wp-block-image size-large\">\u003Cimg decoding=\"async\" width=\"650\" height=\"307\" src=\"/uploads/2022/11/1237-650x307.png\" alt=\"\" class=\"wp-image-14219\" srcset=\"uploads/2022/11/1237-650x307.png 650w, uploads/2022/11/1237-400x189.png 400w, uploads/2022/11/1237-250x118.png 250w, uploads/2022/11/1237-150x71.png 150w, uploads/2022/11/1237.png 688w\" sizes=\"(max-width: 650px) 100vw, 650px\" />\u003C/figure>\r\n\r\n\r\n\r\n\u003Ch2 class=\"wp-block-heading\">\u003Cspan class=\"ez-toc-section\" id=\"What_types_of_impulse_noise_are_there\">\u003C/span>What types of impulse noise are there?\u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h2>\r\n\r\n\r\n\r\n\u003Col>\u003Cli>The periodic pulse noise of synchronous AC power supply is a kind of noise wave composed of a series of pulses with the same or double frequency as the power supply. A typical cause of this noise is dimmers containing silicon controlled rectifiers or thyristor-based. This device adjusts the brightness of the light by switching the AC current based on its phase, thus the noise (pulses) of the adjustment and the supply voltage vary synchronously. In this case, the frequency of change of the contact at the engine is faster. Since the magnitude of the noise depends on the AC (absolute) voltage, the pulse represents the time period of the mains frequency.\u003C/li>\u003Cli>The asynchronous cycle AC power supply periodic pulse noise that changes synchronously with the AC power supply is a noise wave composed of a series of pulse trains with a frequency higher than that of the power supply AC. A typical generator of this type of noise is a switching regulator.\u003C/li>\u003C/ol>\r\n\r\n\r\n\r\n\u003Ch2 class=\"wp-block-heading\">\u003Cspan class=\"ez-toc-section\" id=\"How_to_distinguish_between_amplifiers_and_comparators\">\u003C/span>How to distinguish between amplifiers and comparators?\u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h2>\r\n\r\n\r\n\r\n\u003Cp>The difference between op amps and comparators: Although comparators and op amps have the same symbols on the circuit diagram, the two devices are indeed very different. Generally not interchangeable, the difference is as follows:\u003C/p>\r\n\r\n\r\n\r\n\u003Col>\u003Cli>The flipping speed of the comparator is fast, about on the order of ns, while the flipping speed of the op amp is generally on the order of us (except for special high-speed op amps).\u003C/li>\u003Cli>The op amp can be connected to a negative feedback circuit, but the comparator cannot use negative feedback. Although the comparator also has two input terminals, non-inverting and inverting, there is no phase compensation circuit inside it. Therefore, if negative feedback is connected, the circuit cannot work stably. There is no internal phase compensation circuit, which is the main reason why the comparator is much faster than the op amp.\u003C/li>\u003Cli>The output stage of the operational amplifier generally adopts a push-pull circuit with bipolar output. Most comparator output stages are open-collector structures, so pull-up resistors are required. Unipolar output, easy to connect with digital circuits.\u003Cbr>The main difference between an amplifier and a comparator is the closed-loop characteristic. Most of the amplifiers work in a closed-loop state, so it is required that they cannot be self-excited after the closed-loop. Most of the comparators work in an open-loop state and pursue speed. For the case of relatively low frequency, the amplifier can completely replace the comparator (the output level should be emphasized), and the comparator cannot be used as an amplifier in most cases. Because the comparator is optimized for speed, this optimization reduces the range of closed-loop stability. The op amp is optimized for the closed-loop stable range, so the speed is reduced. Therefore, comparators and amplifiers of the same price class are best to perform their own responsibilities. Just as an amplifier can be used as a comparator, it cannot be ruled out that a comparator can also be used as an amplifier.\u003Cbr>But you may pay more than adding an amplifier to make it closed-loop stable. In other words, to see whether an op amp is used as a comparator or an amplifier is to look at the depth of negative feedback in the circuit. Therefore, the shallow closed-loop comparator may work in the amplifier state and not self-excited. But a large number of tests must be done to ensure that the product is stable under all working conditions! At this time, you have to carefully calculate the cost/risk.\u003Cbr>Operational amplifiers are exactly the same as comparators. Simply put, comparators are open-loop applications of op amps. However, the design of the comparator is used for voltage threshold comparison, and the required comparison threshold is accurate. The rising or falling time of the output edge after comparison is shorter, and the output conforms to TTL/CMOS level/or OC, etc. The accuracy of the intermediate link is not required, and the driving ability is also different.\u003Cbr>General situation: using op amps as comparators, most of them cannot reach the full-scale output, or the edge time after comparison is too long, so it is better to use less op amps as comparators in the design.\u003C/li>\u003C/ol>\r\n\r\n\r\n\r\n\u003Cfigure class=\"wp-block-image size-full\">\u003Cimg decoding=\"async\" width=\"500\" height=\"237\" src=\"/uploads/2022/11/1234.png\" alt=\"\" class=\"wp-image-14220\" srcset=\"uploads/2022/11/1234.png 500w, uploads/2022/11/1234-400x190.png 400w, uploads/2022/11/1234-250x119.png 250w, uploads/2022/11/1234-150x71.png 150w\" sizes=\"(max-width: 500px) 100vw, 500px\" />\u003C/figure>\r\n\r\n\r\n\r\n\u003Ch2 class=\"wp-block-heading\">\u003Cspan class=\"ez-toc-section\" id=\"What_is_the_self-plus_1_minus_1_instruction\">\u003C/span>What is the self-plus 1 / minus 1 instruction?\u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h2>\r\n\r\n\r\n\r\n\u003Cp>The self-increase l/subtract l instruction INC/DEC is used to add l/subtract l to the value in the CPU register A, X or storage unit. It has an effect on the V, N, and Z flag bits in the CCR register, and has no effect on other flag bits.\u003C/p>\r\n\r\n\r\n\r\n\u003Ch2 class=\"wp-block-heading\">\u003Cspan class=\"ez-toc-section\" id=\"Sensor_selection_technique%EF%BC%9A\">\u003C/span>Sensor selection technique：\u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h2>\r\n\r\n\r\n\r\n\u003Cp>Sensor Selection Tips Modern sensors vary widely in principle and construction. How to reasonably select the sensor according to the specific measurement purpose, measurement object and measurement environment is the first problem to be solved when measuring a certain quantity.\u003Cbr>When the sensor is determined, the corresponding measurement method and measurement equipment can also be determined. The success or failure of the measurement results depends to a large extent on whether the selection of sensors is reasonable.\u003C/p>\r\n\r\n\r\n\r\n\u003Col>\u003Cli>Determine the type of sensor according to the measurement object and the measurement environment to carry out a specific measurement work. First of all, it is necessary to consider what kind of sensor to use, which needs to be determined after analyzing various factors. Because, even to measure the same physical quantity, there are sensors with various principles to choose from. Which principle sensor is more suitable, you need to consider the following specific issues according to the characteristics of the measured and the conditions of use of the sensor:\u003Cbr>The size of the measuring range; the requirements of the measured position on the sensor volume; whether the measurement method is contact or non-contact; the signal extraction method, wired or non-contact measurement; the source of the sensor, domestic or imported, whether the price is affordable, or self-developed .\u003Cbr>After considering the above problems, we can determine what type of sensor to choose, and then consider the specific performance indicators of the sensor.\u003C/li>\u003Cli>Sensitivity selection Generally, within the linear range of the sensor, it is hoped that the higher the sensitivity of the sensor, the better. Because only when the sensitivity is high, the value of the output signal corresponding to the measured change is relatively large, which is beneficial to signal processing. However, it should be noted that the sensitivity of the sensor is high, and external noise that has nothing to do with the measured object is easy to mix in. It will also be amplified by the amplification system and affect the measurement accuracy.\u003Cbr>Therefore, it is required that the sensor itself should have a high signal-to-noise ratio to minimize the interference signals introduced from the outside world. The sensitivity of the sensor is directional. When the measured object is a single vector, and its directivity is required to be high, a sensor with low sensitivity in other directions should be selected. If the measured object is a multi-dimensional vector, the smaller the cross-sensitivity of the sensor is required, the better.\u003C/li>\u003Cli>Frequency response characteristics The frequency response characteristics of the sensor determine the frequency range to be measured, and must maintain undistorted measurement conditions within the allowable frequency range. In fact, there is always a certain delay in the response of the sensor, and it is hoped that the shorter the delay time, the better. The frequency response of the sensor is high, and the measurable signal frequency range is wide, and it is affected by the structural characteristics. The inertia of the mechanical system is large, because the frequency of the signal that can be measured by the sensor with low frequency is low.\u003Cbr>In dynamic measurement, the response characteristics should be based on the characteristics of the signal (steady state, transient, random, etc.) to avoid excessive errors.\u003C/li>\u003Cli>Linear range The linear range of the sensor refers to the range in which the output is proportional to the input. In theory, within this range, the sensitivity remains constant. The wider the linear range of the sensor, the larger its range and can guarantee a certain measurement accuracy. When selecting a sensor, when the type of sensor is determined, the first thing to check is whether its range meets the requirements. But in fact, any sensor cannot guarantee absolute linearity, and its linearity is also relative. When the required measurement accuracy is relatively low, within a certain range, the sensor with small nonlinear error can be approximately regarded as linear, which will bring great convenience to the measurement.\u003C/li>\u003Cli>Stability After the sensor is used for a period of time, its ability to keep its performance unchanged is called stability. In addition to the structure of the sensor itself, the factors affecting the long-term stability of the sensor are mainly the environment in which the sensor is used. Therefore, in order to make the sensor have good stability, the sensor must have strong environmental adaptability. Before selecting a sensor, investigate its use environment, and select the appropriate sensor according to the specific use environment. Or take appropriate measures to reduce the impact on the environment. There are quantitative indicators for the stability of the sensor. After the usage period is exceeded, it should be re-calibrated before use to determine whether the performance of the sensor has changed.\u003C/li>\u003C/ol>\r\n\r\n\r\n\r\n\u003Cfigure class=\"wp-block-image size-large\">\u003Cimg loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" decoding=\"async\" width=\"650\" height=\"513\" src=\"/uploads/2022/11/1239-650x513.jpg\" alt=\"\" class=\"wp-image-14221\" srcset=\"uploads/2022/11/1239-650x513.jpg 650w, uploads/2022/11/1239-400x316.jpg 400w, uploads/2022/11/1239-250x197.jpg 250w, uploads/2022/11/1239-150x118.jpg 150w, uploads/2022/11/1239.jpg 730w\" sizes=\"(max-width: 650px) 100vw, 650px\" />\u003C/figure>\r\n\r\n\r\n\r\n\u003Ch2 class=\"wp-block-heading\">\u003Cspan class=\"ez-toc-section\" id=\"What_are_the_development_trends_of_RFID_electronic_tags\">\u003C/span>What are the development trends of RFID electronic tags?\u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h2>\r\n\r\n\r\n\r\n\u003Col>\u003Cli>The cost is lower. From the perspective of the development of electronic tags, electronic tags, especially in terms of high-frequency and long-distance electronic tags, will gradually mature in the next few years and have broader prospects. The reduction of cost will further promote the application of radio frequency identification technology.\u003C/li>\u003Cli>Smaller size. Practical applications usually require the size of the label to be small enough to be used in some special occasions.\u003C/li>\u003Cli>The action distance is longer. The range limitation of the passive RFID system is mainly due to the limitation of the energy supply of the electromagnetic beam to the tag. With the development of low-power IC design technology, the working voltage of electronic tags will be further reduced. The required power consumption is reduced to less than 5μW or even lower. The tag requires less energy, which further increases the working distance of the electronic tag.\u003C/li>\u003Cli>It is suitable for the identification of high-speed moving objects. For high-speed moving objects, it is necessary to increase the transmission rate between the electronic tag and the reader. So that the identification of high-speed objects can be completed in a short time, further shortening the processing time of electronic tags.\u003C/li>\u003Cli>Better security. The tag data should be strictly encrypted, and the communication process should also be encrypted. This requires electronic tags with stronger intelligence and better encryption features. This enables tags to better hide their own information and prevent unauthorized access to information.\u003C/li>\u003C/ol>\r\n\r\n\r\n\r\n\u003Ch2 class=\"wp-block-heading\">\u003Cspan class=\"ez-toc-section\" id=\"Problems_that_should_be_paid_attention_to_during_the_operation_of_current_transformer\">\u003C/span>Problems that should be paid attention to during the operation of current transformer:\u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h2>\r\n\r\n\r\n\r\n\u003Col>\u003Cli>The secondary side of the current transformer must not be open-circuited during operation, once the secondary side is open-circuited. Due to excessive iron loss and high temperature, it will burn out, or the voltage of the secondary winding will increase and the insulation will break down, resulting in the risk of high-voltage electric shock. Therefore, when changing the meter, such as changing the ammeter, active meter, reactive meter, etc., the current loop should be short-circuited before the meter is replaced. After the meter is adjusted, connect it to the secondary circuit first, then remove the short wire and check whether the meter is normal. If sparks are found when the short-circuit wire is removed, the current transformer is open at this time, and it should be short-circuited again immediately. Only when it is found that there is no open circuit in the circuit of the meter can the short wiring be removed again. When removing the short circuit of the current transformer, you should stand on the insulating leather pad. In addition, it is necessary to consider disabling the protection device of the current transformer circuit, and the protection device can only be put into operation after the work is completed.\u003C/li>\u003Cli>If the current transformer has a buzzing sound, check whether the internal iron core is loose, and tighten the iron core bolts.\u003C/li>\u003Cli>One end of the secondary side of the current transformer and the shell must be reliably grounded.\u003C/li>\u003Cli>When the insulation resistance of the secondary side coil of the current transformer is lower than 10~20 megohms, it must be dried to restore the insulation before it can be used.\u003C/li>\u003C/ol>\r\n\r\n\r\n\r\n\u003Cfigure class=\"wp-block-image size-large\">\u003Cimg loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" decoding=\"async\" width=\"650\" height=\"330\" src=\"/uploads/2022/11/1236-650x330.png\" alt=\"\" class=\"wp-image-14222\" srcset=\"uploads/2022/11/1236-650x330.png 650w, uploads/2022/11/1236-400x203.png 400w, uploads/2022/11/1236-250x127.png 250w, uploads/2022/11/1236-768x390.png 768w, uploads/2022/11/1236-150x76.png 150w, uploads/2022/11/1236.png 798w\" sizes=\"(max-width: 650px) 100vw, 650px\" />\u003C/figure>\r\n\r\n\r\n\r\n\u003Ch2 class=\"wp-block-heading\">\u003Cspan class=\"ez-toc-section\" id=\"How_to_maintain_TOUT_at_highlow_level_assuming_the_reverse_bit_has_been_turned_off\">\u003C/span>How to maintain TOUT at high/low level (assuming the reverse bit has been turned off)?\u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h2>\r\n\r\n\r\n\r\n\u003Cp>Turn off the auto-reload bit, when the TCNTn register value reaches 0, TOUT outputs a high level and the timer stops. The timer can be stopped by setting the timer start/stop bit to 0.\u003Cbr>If TCNTn register value is less than TC-MPn register value, output high level. If the value of TCNTn register is greater than the value of TCMPn register, output low level. The TOUT level can be inverted directly by configuring the inversion bit in the TCON register.\u003C/p>\r\n\r\n\r\n\r\n\u003Ch2 class=\"wp-block-heading\">\u003Cspan class=\"ez-toc-section\" id=\"The_quality_of_the_UWSN_node_deployment_plan_mainly_focuses_on_several_indicators\">\u003C/span>The quality of the UWSN node deployment plan mainly focuses on several indicators?\u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h2>\r\n\r\n\r\n\r\n\u003Col>\u003Cli>The coverage performance of the target area. Good area coverage performance can ensure the integrity of the collected information and the accuracy of the overall monitoring of the target area.\u003C/li>\u003Cli>Network connectivity performance. The connectivity performance of the network is reflected in the transportability of the data transmission links between nodes. A good deployment scheme requires good transferability of information in the network. The collected information can be accurately and timely delivered to the information use terminal.\u003C/li>\u003Cli>Reduce network energy consumption. The particularity of underwater wireless sensor networks puts forward new requirements for the network lifetime. Therefore, node redundancy and information fault tolerance need to be considered comprehensively during node deployment. Dynamically manage sensor nodes to reduce redundancy and balance communication loads. On the premise of realizing the application requirements, the life of the network can be extended to the greatest extent.\u003C/li>\u003C/ol>\r\n\u003C/div>\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">\u003C/div>\r\n\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\u003C!-- clear for photos floats -->\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">","Electronic","uploads/2022/11/01-21-650x303.png",1776793314000,"20db6653d7e85fded62",0,"Admin","2028706543895019522","4e3d7182172b875eadc","ten-daily-electronic-common-sense-section-123",191,1,"/uploads/2022/11/01-21-650x303.png","Apr 22, 2026",[23,33,42,50,60,69],{"id":24,"title":25,"summary":26,"content":27,"cover":28,"cateId":12,"tags":28,"views":29,"isTop":13,"status":19,"createBy":28,"createTime":30,"updateBy":28,"updateTime":31,"institutionId":28,"isPage":13,"images":28,"horizontalCover":28,"verticalCover":28,"slug":32,"siteId":15},"c047d1a580d380475ed","What are the development tools for supporting 2802x-based applications?","What are the development tools for supporting 2802x-based applications? Looking for capacitors online purchase? is a reliable marketplace to buy and learn about capacitors. Come with us for amazing deals & information.","\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva; font-size: 12pt;\">\u003Cspan style=\"color: #c70a0a;\">*\u003C/span> \u003Cspan style=\"color: #808080;\">Question\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">What are the development tools for supporting 2802x-based applications?\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">\u003Cspan style=\"color: #c70a0a;\">\u003Cbr />\r\n\u003Cspan style=\"font-size: 12pt;\">*\u003C/span>\u003C/span>\u003Cspan style=\"color: #808080; font-size: 12pt;\"> Answer\u003C/span>\u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-size: inherit;\">● CodeComposerStudi0 integrated development environment IDE – c / c compiler A code generation tool An assembler / linker One cycle accurate simulator \u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-size: inherit;\">● Application algorithm · \u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-size: inherit;\">\u003C/span>\u003C/p>\r\n\u003C/div>\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">\u003C/div>\r\n\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\u003C!-- clear for photos floats -->\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">",null,238,"2026-04-22 01:44:14","2026-04-22 14:58:27","what-are-the-development-tools-for-supporting-2802x-based-applications",{"id":34,"title":35,"summary":36,"content":37,"cover":28,"cateId":12,"tags":38,"views":39,"isTop":13,"status":19,"createBy":28,"createTime":40,"updateBy":28,"updateTime":31,"institutionId":28,"isPage":13,"images":28,"horizontalCover":28,"verticalCover":28,"slug":41,"siteId":15},"6d16643f4061eb43174","What is the thermocouple sensor made of?","What is the thermocouple sensor made of? Looking for capacitors online purchase? is a reliable marketplace to buy and learn about capacitors. Come with us for amazing deals & information.","\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva; font-size: 12pt;\">\u003Cspan style=\"color: #c70a0a;\">*\u003C/span> \u003Cspan style=\"color: #808080;\">Question\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">What is the thermocouple sensor made of?\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">\u003Cspan style=\"color: #c70a0a;\">\u003Cbr />\r\n\u003Cspan style=\"font-size: 12pt;\">*\u003C/span>\u003C/span>\u003Cspan style=\"color: #808080; font-size: 12pt;\"> Answer\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: trebuchet-ms;\">A thermocouple sensor is a thermal sensor that uses thermoelectric phenomena.\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-size: inherit;\">\u003Cbr />\r\n\u003C/span>\u003C/p>","sensor",229,"2026-04-22 01:43:58","what-is-the-thermocouple-sensor-made-of",{"id":43,"title":44,"summary":45,"content":46,"cover":28,"cateId":12,"tags":47,"views":48,"isTop":13,"status":19,"createBy":28,"createTime":40,"updateBy":28,"updateTime":31,"institutionId":28,"isPage":13,"images":28,"horizontalCover":28,"verticalCover":28,"slug":49,"siteId":15},"61750966158705a45ac","What is the goal of software design for terminal nodes?","What is the goal of software design for terminal nodes? Looking for capacitors online purchase? is a reliable marketplace to buy and learn about capacitors. Come with us for amazing deals & information.","\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva; font-size: 12pt;\">\u003Cspan style=\"color: #c70a0a;\">*\u003C/span> \u003Cspan style=\"color: #808080;\">Question\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">What is the goal of software design for terminal nodes?\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">\u003Cspan style=\"color: #c70a0a;\">\u003Cbr />\r\n\u003Cspan style=\"font-size: 12pt;\">*\u003C/span>\u003C/span>\u003Cspan style=\"color: #808080; font-size: 12pt;\"> Answer\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">Data acquisition of analog input and digital input through C language, that is, collecting parameters from electrical equipment in power grid and substation, and classifying data to master the operation status of the substation and the status of electrical equipment in the station;The command, the jump switch, to achieve the purpose of monitoring and control.\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-size: inherit;\">\u003Cbr />\r\n\u003C/span>\u003C/p>\r\n\u003C/div>\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">\u003C/div>\r\n\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\u003C!-- clear for photos floats -->\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">","design,terminal",224,"what-is-the-goal-of-software-design-for-terminal-nodes",{"id":51,"title":52,"summary":53,"content":54,"cover":55,"cateId":12,"tags":28,"views":56,"isTop":13,"status":19,"createBy":28,"createTime":57,"updateBy":28,"updateTime":58,"institutionId":28,"isPage":13,"images":28,"horizontalCover":28,"verticalCover":28,"slug":59,"siteId":15},"a39a5d8553e41a5005a","Template Analysis Method For EMC Problems","Template Analysis Method For EMC Problems Looking for capacitors online purchase? is a reliable marketplace to buy and learn about capacitors. Come with us for amazing deals & information.","\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"198\">\r\n\u003Cp>\u003Cdiv id=\"attachment_5001\" style=\"width: 265px\" class=\"wp-caption alignnone\">\u003Cimg loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" aria-describedby=\"caption-attachment-5001\" decoding=\"async\" class=\" wp-image-5001\" src=\"uploads/2019/10/Forms-of-electromagnetic-interference-400x224.jpg\" alt=\"\" width=\"255\" height=\"143\" srcset=\"uploads/2019/10/Forms-of-electromagnetic-interference-400x224.jpg 400w, uploads/2019/10/Forms-of-electromagnetic-interference-250x140.jpg 250w, uploads/2019/10/Forms-of-electromagnetic-interference-150x84.jpg 150w, uploads/2019/10/Forms-of-electromagnetic-interference.jpg 640w\" sizes=\"(max-width: 255px) 100vw, 255px\" />\u003Cp id=\"caption-attachment-5001\" class=\"wp-caption-text\">\u003C/span> \u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">The form of electromagnetic interference\u003C/span>\u003C/p>\u003C/div>\u003C/td>\r\n\u003Ctd width=\"425\">\r\n\u003Cp>\u003Cdiv id=\"attachment_5004\" style=\"width: 376px\" class=\"wp-caption alignnone\">\u003Cimg fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" aria-describedby=\"caption-attachment-5004\" fetchpriority=\"high\" decoding=\"async\" class=\" wp-image-5004\" src=\"uploads/2019/10/The-main-form-of-electromagnetic-interference-400x182.jpg\" alt=\"\" width=\"366\" height=\"166\" srcset=\"uploads/2019/10/The-main-form-of-electromagnetic-interference-400x182.jpg 400w, uploads/2019/10/The-main-form-of-electromagnetic-interference-250x114.jpg 250w, uploads/2019/10/The-main-form-of-electromagnetic-interference-150x68.jpg 150w, uploads/2019/10/The-main-form-of-electromagnetic-interference.jpg 562w\" sizes=\"(max-width: 366px) 100vw, 366px\" />\u003Cp id=\"caption-attachment-5004\" class=\"wp-caption-text\">\u003C/span> \u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">The main form of electromagnetic interference\u003C/span>\u003C/p>\u003C/div>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">The electromagnetic interference problem is a key issue in any hardware design field. It is especially important to understand the initial dry electromagnetic interference problem to solve this problem.\u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">\u003Cstrong>The electromagnetic interference model has three basic elements:\u003C/strong>\u003C/span>\u003C/p>\r\n\u003Col>\r\n\u003Cli>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">There is electromagnetic interference energy.\u003C/span>\u003C/li>\r\n\u003Cli>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">There is a device that is subject to electromagnetic interference.\u003C/span>\u003C/li>\r\n\u003Cli>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">There is a coupling channel to transmit electromagnetic energy between the interfered and interfered devices.\u003C/span>\u003C/li>\r\n\u003C/ol>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">Electromagnetic interference only occurs when these three basic elements are met at the same time. EMC engineers should determine the EMC design content and design direction based on the physical structure.\u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">The EMC analysis template is determined by the electrical length of the structure. Converting the physical dimensions of the device structure to electrical length is the starting point for design and problem finding. The combination and connection of templates constitute a model for analyzing electromagnetic compatibility problems. The template analysis method is to select the appropriate template and electromagnetic logic connection according to the actual problem and structure to form a dynamic process of complete electromagnetic interference phenomenon.\u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">The EMC design of printed circuit boards is the cheapest and most effective way to eliminate the main sources of RF interference. When the interference source on the printed circuit board and the victim device exist in the same small space, the engineer must control the electromagnetic energy generated. This means that electromagnetic energy is only present at the required assembly parts. This is the method of removing EMC problems, electromagnetic suppression or electromagnetic cancellation.\u003C/span>\u003C/p>\r\n\u003C/div>\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">\u003C/div>\r\n\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\u003C!-- clear for photos floats -->\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">","uploads/2019/10/Forms-of-electromagnetic-interference-400x224.jpg",498,"2026-04-22 01:43:54","2026-04-22 14:58:28","template-analysis-method-for-emc-problems",{"id":61,"title":62,"summary":63,"content":64,"cover":65,"cateId":12,"tags":28,"views":66,"isTop":13,"status":19,"createBy":28,"createTime":67,"updateBy":28,"updateTime":58,"institutionId":28,"isPage":13,"images":28,"horizontalCover":28,"verticalCover":28,"slug":68,"siteId":15},"86325bcdfe62f25cc0b","Judgment Method of Three Types of Amplifiers","Judgment Method of Three Types of Amplifiers Looking for capacitors online purchase? is a reliable marketplace to buy and learn about capacitors. Come with us for amazing deals & information.","\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">Triode based audio and electronic amplifiers are very commonly found in many walks of life. Although, the transistor based amplifiers created the danger of obsolescence of tube amplifiers, the tube amplifiers have succeeded in maintaining a cult following amongst the audiophiles. The main reason behind this is the warm and crunchy sound response of tube amplifiers.\u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">The main component in tube amplifiers is the triode. Triode is essentially an amplifying vacuum tube which consists of three electrodes inside a glass casing. The electrodes are known as anode, cathode, and grid respectively. Triodes were widely used in all types of electronic circuits until they got replaced by transistors. [\u003Ca href=\"#Lee19\">1\u003C/a>]\u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">According to the electronic circuit configuration, there are three main types of amplifiers. These types include common emitter, common collector, and common base amplifiers. Following sub-sections provide an ample discussion on these amplifier types.\u003C/span>\u003C/p>\r\n\u003Cdiv id=\"ez-toc-container\" class=\"ez-toc-v2_0_69_1 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\r\n\u003Cdiv class=\"ez-toc-title-container\">\r\n\u003Cp class=\"ez-toc-title \" >Table of Contents\u003C/p>\r\n\u003Cspan class=\"ez-toc-title-toggle\">\u003Ca href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\">\u003Cspan class=\"ez-toc-js-icon-con\">\u003Cspan class=\"\">\u003Cspan class=\"eztoc-hide\" style=\"display:none;\">Toggle\u003C/span>\u003Cspan class=\"ez-toc-icon-toggle-span\">\u003Csvg style=\"fill: #999;color:#999\" xmlns=\"http://www.w3.org/2000/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\">\u003Cpath d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\">\u003C/path>\u003C/svg>\u003Csvg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http://www.w3.org/2000/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\">\u003Cpath d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"/>\u003C/svg>\u003C/span>\u003C/span>\u003C/span>\u003C/a>\u003C/span>\u003C/div>\r\n\u003Cnav>\u003Cul class='ez-toc-list ez-toc-list-level-1 ' >\u003Cli class='ez-toc-page-1 ez-toc-heading-level-1'>\u003Ca class=\"ez-toc-link ez-toc-heading-1\" href=\"#Common_Emitter_Amplifier\" title=\"Common Emitter Amplifier\">Common Emitter Amplifier\u003C/a>\u003C/li>\u003Cli class='ez-toc-page-1 ez-toc-heading-level-1'>\u003Ca class=\"ez-toc-link ez-toc-heading-2\" href=\"#Common_Collector_Amplifier\" title=\"Common Collector Amplifier\">Common Collector Amplifier\u003C/a>\u003C/li>\u003Cli class='ez-toc-page-1 ez-toc-heading-level-1'>\u003Ca class=\"ez-toc-link ez-toc-heading-3\" href=\"#Common_Base_Amplifier\" title=\"Common Base Amplifier\">Common Base Amplifier\u003C/a>\u003C/li>\u003Cli class='ez-toc-page-1 ez-toc-heading-level-1'>\u003Ca class=\"ez-toc-link ez-toc-heading-4\" href=\"#Works_Cited\" title=\"Works Cited\">Works Cited\u003C/a>\u003C/li>\u003C/ul>\u003C/nav>\u003C/div>\r\n\u003Ch1>\u003Cspan class=\"ez-toc-section\" id=\"Common_Emitter_Amplifier\">\u003C/span>\u003Cspan style=\"font-size: 14pt; font-family: 'Trebuchet MS', Geneva;\">Common Emitter Amplifier\u003C/span>\u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h1>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">Common emitter amplifiers are the most widely used type of amplifiers. Common emitter amplifiers can be identified easily by the grounded emitter terminal. Like all other amplifiers, the CE amplifier also operates on an AC input. The common emitter amplifier is a single-stage amplifier which uses a BJT transistor or a triode as an amplifying element. The circuit of common emitter amplifier is given as following:\u003C/span>\u003C/p>\r\n\u003Cdiv id=\"attachment_4685\" style=\"width: 670px\" class=\"wp-caption alignnone\">\u003Cimg fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" aria-describedby=\"caption-attachment-4685\" fetchpriority=\"high\" decoding=\"async\" class=\" wp-image-4685\" src=\"uploads/2019/09/Figure-1-Common-Emitter-Amplifier-Circuit.jpg\" alt=\"\" width=\"660\" height=\"512\" srcset=\"uploads/2019/09/Figure-1-Common-Emitter-Amplifier-Circuit.jpg 387w, uploads/2019/09/Figure-1-Common-Emitter-Amplifier-Circuit-250x194.jpg 250w, uploads/2019/09/Figure-1-Common-Emitter-Amplifier-Circuit-150x116.jpg 150w\" sizes=\"(max-width: 660px) 100vw, 660px\" />\u003Cp id=\"caption-attachment-4685\" class=\"wp-caption-text\">\u003C/span> \u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">Figure 1: Common Emitter Amplifier Circuit\u003C/span>\u003C/p>\u003C/div>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">\u003Ca href=\"https://www.elprocus.com/common-emitter-amplifier-circuit-working/\">https://www.elprocus.com/common-emitter-amplifier-circuit-working/\u003C/a>\u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">The resistors R1 and R2 form a voltage divider circuit which is used for biasing the transistor. The resistor R\u003Csub>E \u003C/sub>provides thermal stability to the amplifier. A coupling capacitor is present on the input side of the transistor which filters out DC component from the signal. [\u003Ca href=\"#Tar19\">2\u003C/a>]\u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">Major advantages of common emitter amplifier include low input impedance, high output impedance, high power gain, low noise, and high current gain. Main disadvantages of common emitter amplifier include unsuitability for high frequencies, unstable voltage gain, high thermal instability, and high output resistance. The CE amplifiers find their applications in low frequency voltage amplifiers, RF circuits, and low noise amplifiers. [\u003Ca href=\"#Tar19\">2\u003C/a>]\u003C/span>\u003C/p>\r\n\u003Ch1>\u003Cspan class=\"ez-toc-section\" id=\"Common_Collector_Amplifier\">\u003C/span>\u003Cspan style=\"font-size: 14pt; font-family: 'Trebuchet MS', Geneva;\">Common Collector Amplifier\u003C/span>\u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h1>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">The common collector amplifier can be identified from the grounded collector terminal of the triode or the transistor. The common collector amplifiers are mostly used as buffers in multi-stage amplifier circuits. The CC amplifier circuit is given as following:\u003C/span>\u003C/p>\r\n\u003Cdiv id=\"attachment_4686\" style=\"width: 633px\" class=\"wp-caption alignnone\">\u003Cimg loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" aria-describedby=\"caption-attachment-4686\" decoding=\"async\" class=\" wp-image-4686\" src=\"uploads/2019/09/Figure-2-Common-Collector-Amplifier-or-Emitter-Follower-Circuit.jpg\" alt=\"\" width=\"623\" height=\"509\" srcset=\"uploads/2019/09/Figure-2-Common-Collector-Amplifier-or-Emitter-Follower-Circuit.jpg 329w, uploads/2019/09/Figure-2-Common-Collector-Amplifier-or-Emitter-Follower-Circuit-250x204.jpg 250w, uploads/2019/09/Figure-2-Common-Collector-Amplifier-or-Emitter-Follower-Circuit-150x123.jpg 150w\" sizes=\"(max-width: 623px) 100vw, 623px\" />\u003Cp id=\"caption-attachment-4686\" class=\"wp-caption-text\">\u003C/span> \u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">Figure 2 Common Collector Amplifier or Emitter Follower Circuit\u003C/span>\u003C/p>\u003C/div>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\"> \u003Ca href=\"https://www.elprocus.com/common-collector-amplifier-circuit-working/\">https://www.elprocus.com/common-collector-amplifier-circuit-working/\u003C/a>\u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">The input signal is introduced via the base of the triode whereas the output is taken from the emitter terminal. The main advantages of CC amplifier include high current gain, high input resistance, and low output resistance. The disadvantages of CC amplifier include low voltage gain. The CC amplifiers find their applications as impedance matching amplifiers, isolation amplifiers, and buffer amplifiers in cascade or multi-stage amplifier systems. [\u003Ca href=\"#Dav19\">3\u003C/a>]\u003C/span>\u003C/p>\r\n\u003Ch1>\u003Cspan class=\"ez-toc-section\" id=\"Common_Base_Amplifier\">\u003C/span>\u003Cspan style=\"font-size: 14pt; font-family: 'Trebuchet MS', Geneva;\">Common Base Amplifier\u003C/span>\u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h1>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">The common base amplifier configuration is not as widely used as the CE and CC amplifiers. They are mostly used in high frequency circuits. In a common base amplifier the base terminal of the triode is connected to the ground, the input signal is applied to the emitter, and the output is taken from the collector terminal. The circuit diagram of the CB amplifier is given as following:\u003C/span>\u003C/p>\r\n\u003Cdiv id=\"attachment_4687\" style=\"width: 688px\" class=\"wp-caption alignnone\">\u003Cimg loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" loading=\"lazy\" aria-describedby=\"caption-attachment-4687\" decoding=\"async\" class=\" wp-image-4687\" src=\"uploads/2019/09/Figure-3-Common-Base-Amplifier-using-an-NPN-Transistor.png\" alt=\"\" width=\"678\" height=\"835\" srcset=\"uploads/2019/09/Figure-3-Common-Base-Amplifier-using-an-NPN-Transistor.png 194w, uploads/2019/09/Figure-3-Common-Base-Amplifier-using-an-NPN-Transistor-150x185.png 150w\" sizes=\"(max-width: 678px) 100vw, 678px\" />\u003Cp id=\"caption-attachment-4687\" class=\"wp-caption-text\">\u003C/span> \u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">Figure 3 Common Base Amplifier using an NPN Transistor\u003C/span>\u003C/p>\u003C/div>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">\u003Ca href=\"https://www.electronics-tutorials.ws/amplifier/common-base-amplifier.html\">https://www.electronics-tutorials.ws/amplifier/common-base-amplifier.html\u003C/a>\u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">The CB amplifiers are used in high frequency circuits where low input impedance is required. They are used in applications such as moving coil microphone pre-amplifiers, UHF, VHF, and RF amplifiers. The advantages of CB amplifier include decent voltage gain and current buffering capability. The disadvantages include need for dual power supply, low input impedance, low current gain, and high output impedance. [\u003Ca href=\"#www19\">4\u003C/a>]\u003C/span>\u003C/p>\r\n\u003Ch1>\u003Cspan class=\"ez-toc-section\" id=\"Works_Cited\">\u003C/span>\u003Cspan style=\"font-size: 14pt; font-family: 'Trebuchet MS', Geneva;\">Works Cited\u003C/span>\u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h1>\r\n\u003Ctable width=\"630\">\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"18\">\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">[1]\u003C/span>\u003C/td>\r\n\u003Ctd width=\"606\">\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">Lee Forest. (2019, August) www.allaboutcircuits.com. [Online]. \u003Ca href=\"https://www.allaboutcircuits.com/textbook/semiconductors/chpt-13/the-triode/\">https://www.allaboutcircuits.com/textbook/semiconductors/chpt-13/the-triode/\u003C/a>\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003Ctr>\r\n\u003Ctd width=\"18\">\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">[2]\u003C/span>\u003C/td>\r\n\u003Ctd width=\"606\">\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">Tarun Agarwal. (2019, June) www.elprocus.com. [Online]. \u003Ca href=\"https://www.elprocus.com/common-emitter-amplifier-circuit-working/\">https://www.elprocus.com/common-emitter-amplifier-circuit-working/\u003C/a>\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003Ctr>\r\n\u003Ctd width=\"18\">\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">[3]\u003C/span>\u003C/td>\r\n\u003Ctd width=\"606\">\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">Dave Moldenhauer. (2019, March) www.watelectrical.com. [Online]. \u003Ca href=\"https://www.watelectrical.com/working-and-applications-of-common-collector-amplifier/\">https://www.watelectrical.com/working-and-applications-of-common-collector-amplifier/\u003C/a>\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003Ctr>\r\n\u003Ctd width=\"18\">\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">[4]\u003C/span>\u003C/td>\r\n\u003Ctd width=\"606\">\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">(2019, August) www.electronics-notes.com. [Online]. \u003Ca href=\"https://www.electronics-notes.com/articles/analogue_circuits/transistor/transistor-common-base-circuit.php\">https://www.electronics-notes.com/articles/analogue_circuits/transistor/transistor-common-base-circuit.php\u003C/a>\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003C/div>\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">\u003C/div>\r\n\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\u003C!-- clear for photos floats -->\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">","uploads/2019/09/Figure-1-Common-Emitter-Amplifier-Circuit.jpg",56,"2026-04-22 01:43:51","judgment-method-of-three-types-of-amplifiers",{"id":70,"title":71,"summary":72,"content":73,"cover":74,"cateId":12,"tags":28,"views":75,"isTop":13,"status":19,"createBy":28,"createTime":67,"updateBy":28,"updateTime":31,"institutionId":28,"isPage":13,"images":28,"horizontalCover":28,"verticalCover":28,"slug":76,"siteId":15},"4e90914c43b2a6a4366","Precautions for using MOS (Metal-Oxide-Silicon transistor) tubes","Precautions for using MOS (Metal-Oxide-Silicon transistor) tubes Looking for capacitors online purchase? is a reliable marketplace to buy and learn about capacitors. Come with us for amazing deals & information.","\u003Cdiv id=\"attachment_4675\" style=\"width: 388px\" class=\"wp-caption alignnone\">\u003Cimg fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" aria-describedby=\"caption-attachment-4675\" fetchpriority=\"high\" decoding=\"async\" class=\" wp-image-4675\" src=\"uploads/2019/09/MOS-tube.jpg\" alt=\"\" width=\"378\" height=\"378\" srcset=\"uploads/2019/09/MOS-tube.jpg 225w, uploads/2019/09/MOS-tube-150x150.jpg 150w, uploads/2019/09/MOS-tube-24x24.jpg 24w, uploads/2019/09/MOS-tube-48x48.jpg 48w, uploads/2019/09/MOS-tube-96x96.jpg 96w\" sizes=\"(max-width: 378px) 100vw, 378px\" />\u003Cp id=\"caption-attachment-4675\" class=\"wp-caption-text\">\u003C/span> \u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">MOS tube\u003C/span>\u003C/p>\u003C/div>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">A MOS transistor (also known as metal-oxide semiconductor field effect transistor) is electrically conductive by a majority of carriers’ and it is a voltage controlled electrical device. It is also called a unipolar transistor. It has three main terminals; Gate (G), Drain (D) and Source (S). The Gate voltage determines the conductivity of the device and with change of applied voltage; the MOS transistor can be used for amplifying or switching electronic signals. Its characteristics are; high input resistance (10^7~10^12Ω), low noise, low power consumption, large dynamic range, easy integration, no secondary breakdown, wide safe working area, source and drain can be interchanged, it is voltage controlled device and conduction takes place through majority carriers (n-channel: electrons and p-channel: holes).\u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">All MOS integrated circuits (including P-channel MOS, N-channel MOS, complementary MOS-CMOS integrated circuits) have an insulated gate to prevent voltage breakdown. Generally, the thickness of insulating Gate oxide layer of MOS transistor is 5 – 200 nm (about 25 nm, 50 nm, and 80 nm). In addition to the high-impedance gate of the integrated circuit, there is a resistor-diode network for protection. However, MOS devices are sensitive to voltage spikes and static electricity discharges and this can cause difficulties when we have to replace MOS devices especially complementary-symmetry metal-oxide semiconductor (CMOS) devices. Therefore, the protection network inside the device is not enough to avoid electrostatic damage (ESD) to the device. To minimize chances of damaging MOS devices during handling, special procedures have been developed to protect them from static shock. ICs are generally shipped and stored in special conductive-plastic tubes or trays. MOS devices safety is ensured by inserting ICs leas into aluminium foil or antistatic (conductive) foam – not Styrofoam. PC boards containing static sensitive devices are normally shipped in special antistatic bags, which are good for storing ICs and other computer components that could be damaged by ESD.\u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">Experiments indicate that MOS device will fail during high-voltage discharge. The device may also fail for accumulation of multiple lower voltage discharges. According to the severity of the damage, there are many forms of electrostatic damage. The most serious and most likely to occur is the complete destruction of the input or output so as to be short-circuited or open to the power supply terminal VDD, and MOS device completely loses its original function. A little bit of serious damage is intermittent failure or degradation of performance, which is even more difficult to detect. There is also some electrostatic damage that can cause the device performance to deteriorate due to increased leakage current.\u003C/span>\u003C/p>\r\n\u003Ch1>\u003Cspan style=\"font-size: 14pt; font-family: 'Trebuchet MS', Geneva;\">\u003Cstrong>MOS tube definition\u003C/strong>\u003C/span>\u003C/h1>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">MOS tube is a MOS transistor or a metal-insulator-semiconductor. The source (S) and drain (D) of MOS tube can be reversed. They are all N-type regions formed in the P-type backgate. And in most cases, the two zones are same even if two ends are reversed. And it will not affect performance of the device. Such devices are considered to be symmetrical. MOS tube is a voltage-driven high-current type device, which is widely used in circuits, especially power systems. MOS tubes have some characteristics that should be paid special attention in practical applications.\u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">MOS devices have body diodes formed by pn junction between source (S) and drain (D), and also known as parasitic diodes or an internal diode, are found in a single MOS device between the drain and the source. They are not used in integrated circuit lithography (standard method of printed circuit board (PCB), and microprocessor fabrication). This diode can provide reverse protection and freewheeling during high current drive and inductive loads. The forward voltage drop is about 0.7~1V. Because of this diode, the MOS device can’t simply see the function of a switch in the circuit. For example, in the charging circuit, after the charging is completed, the battery will reverse when the supply power is removed; this is usually the result we do not want to see. The general solution is to add a diode to prevent reverse power supply. This can be done, but the characteristics of the diode must have a forward voltage of 0.6~1V. Down, in the case of high currents, the heat is severe, and at the same time, the energy is wasted, and the energy efficiency of the whole machine is low. Another method is to add a back-to-back MOS tube and use the low on-resistance of the MOS tube to achieve energy saving. Another common application of this characteristic is low-voltage synchronous rectification. In practice, the body diode is a result of manufacturing process, and it is in between the source and drain and on an n-channel device, if the drains fall below voltage on the source, current will flow from source to drain.\u003C/span>\u003C/p>\r\n\u003Ch1>\u003Cspan style=\"font-size: 14pt; font-family: 'Trebuchet MS', Geneva;\">\u003Cstrong>Precautions\u003C/strong>\u003C/span>\u003C/h1>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">After the MOS tube is turned on, it has no directionality and in this state of operation, it behaves like a wire. It has a resistance characteristic only and there is no conduction voltage drop in this case. Usually, the saturation level on resistance is several to several tens of milliohms (mΩ). MOS tube is also non-directional therefore allowing both DC and AC currents to pass through.\u003C/span>\u003C/p>\r\n\u003Ch1>\u003Cspan style=\"font-size: 14pt; font-family: 'Trebuchet MS', Geneva;\">\u003Cstrong>Precautions for using MOS tubes\u003C/strong>\u003C/span>\u003C/h1>\r\n\u003Cul>\r\n\u003Cli>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">In order to safely use the MOS tube, the limit value of the dissipated power of the tube, the maximum drain-source voltage, the maximum gate-source voltage, and the maximum current set values cannot be exceeded in the manufacturing design.\u003C/span>\u003C/li>\r\n\u003C/ul>\r\n\u003Cul>\r\n\u003Cli>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">When using various types of MOS tubes, they must be connected to the circuit in strict accordance with the required bias, and the polarity of the MOS tube bias should be observed. For example, the junction between the source and drain of the junction MOS transistor is a PN junction, the gate of the N-channel transistor can be positively biased; the gate of the P-channel transistor can be negatively biased.\u003C/span>\u003C/li>\r\n\u003C/ul>\r\n\u003Cul>\r\n\u003Cli>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">Since the input impedance of the MOS tube is extremely high, the lead pin must be short-circuited during transportation and storage, and the metal shield package should be used to prevent the external induced potential from penetrating the gate. In particular, it is important to note that the MOS tube cannot be placed in a plastic box. It should be placed in a metal box e.g aluminium foil when it is stored, and the tube should be protected from moisture.\u003C/span>\u003C/li>\r\n\u003C/ul>\r\n\u003Cul>\r\n\u003Cli>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">In order to prevent the gate breakdown of the MOS tube, all test instruments, worktables, soldering irons, and the circuit itself must be well grounded; when the pins are soldered, the source is soldered first; before being connected to the circuit, All the lead ends of MOS tube are kept short-circuited with each other, and the short-circuit material is removed after soldering; when removing MOS tube from the component holder, the grounding of the human body should be adhered to. The advanced gas-fired electric soldering iron is convenient for soldering MOS tubes and ensures safety. When the power is not turned off, it is absolutely impossible to insert or remove the tubes from the circuit. The above safety measures must be taken care of when using MOS tubes.\u003C/span>\u003C/li>\r\n\u003C/ul>\r\n\u003Cul>\r\n\u003Cli>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">When installing the MOS tube, pay attention to the location of the installation to avoid heating elements; to prevent the vibration of MOS tube, it is necessary to fasten MOS tube; when the lead is bent, it should be larger than the root size of 5 mm. Therefore it is important to prevent bending of the pins and causing air leaks.\u003C/span>\u003C/li>\r\n\u003C/ul>\r\n\u003Cul>\r\n\u003Cli>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">When using a VMOS tube, a suitable heat sink must be added. Taking VNF306 as an example, the maximum power can reach 30W after it is equipped with a 140×140×4 (mm) heat sink.\u003C/span>\u003C/li>\r\n\u003C/ul>\r\n\u003Cul>\r\n\u003Cli>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">After the multiple MOS tubes are connected in parallel, the high-frequency characteristics of the amplifier are deteriorated due to the corresponding increase in the inter-electrode capacitance and the distributed capacitance and high-frequency parasitic oscillation of the amplifier is easily caused by the feedback. For this reason, the parallel composite MOS tubes generally do not exceed four, and the anti-parasitic oscillation resistors are connected in series to the base or the gate of each tube.\u003C/span>\u003C/li>\r\n\u003C/ul>\r\n\u003Cul>\r\n\u003Cli>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">The gate-source voltage of the junction MOS transistor cannot be reversed and can be saved in the open state. When the insulated gate MOS transistor is not used, the electrodes must be short-circuited since its input resistance is very high, so as to avoid an external electric field. The MOS tube is damaged by such action.\u003C/span>\u003C/li>\r\n\u003C/ul>\r\n\u003Cul>\r\n\u003Cli>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">When soldering, the soldering iron shell must be equipped with an external grounding wire to prevent damage to MOS tube due to electrification of the soldering iron. For a small amount of soldering, you can also solder the soldering iron after removing the plug or cutting off the power. Especially when soldering insulated gate MOS transistors, they should be soldered in the order of source-drain-gate, and the power should be cut off.\u003C/span>\u003C/li>\r\n\u003C/ul>\r\n\u003Cul>\r\n\u003Cli>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">When soldering with 25W soldering iron, it should be fast. If soldering with 45~75W soldering iron, use the tweezers to clamp the root of the pin to help dissipate heat. The junction MOS tube can qualitatively check the quality of the MOS tube by using the table resistance file (check the resistance between the forward and reverse resistance of each PN junction and the drain source), and the insulated gate field effect tube cannot be inspected with a multimeter, and the tester must be used. Moreover, the short-circuit line of each electrode can be removed after the tester is connected. When it is removed, it should be short-circuited and then removed. The key is to avoid the gate hanging.\u003C/span>\u003C/li>\r\n\u003C/ul>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">When input impedance is a factor to consider during design process, it is necessary to take moisture-proof measures to avoid lowering the input resistance of the MOS tube due to temperature influence. If a four-lead MOS transistor is used, its substrate leads should be grounded. The ceramic packaged of the MOS tube has photosensitive properties and should be protected from light.\u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">For power MOS tubes, there must be good heat dissipation conditions. Because the power MOS tube is used under high load conditions, it is necessary to design a sufficient heat sink to ensure that the temperature of MOS tube casing does not exceed the rated value, so that the MOS device can work stably and reliably for a long time.\u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">In short, to ensure use of MOS tubes safely, there are many precautions to be adhered to, and the safety measures adopted are various. The vast number of professional and technical personnel required, especially the vast number of electronic enthusiasts, must proceed according to their actual conditions. Take practical measures to use MOS tubes safely and effectively.\u003C/span>\u003C/p>\r\n\u003C/div>\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">\u003C/div>\r\n\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\u003C!-- clear for photos floats -->\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">","uploads/2019/09/MOS-tube.jpg",146,"precautions-for-using-mos-metal-oxide-silicon-transistor-tubes",1776841233154]