* Question What types of PLC input circuits are usually divided into? * Answer The input circuits of PLC are basically the same, and are usually divided into three types: DC input mode, AC input mode, ...
* Question What is the working principle of the timer/counter? * Answer (1) As the timer principle (2) As the counter principle (3) Count overflow interrupt and counter initial value calculation (4) D ...
* Question What are the advantages of the DS18B20 digital temperature sensor? * Answer DS18B20 is a digital temperature sensor with single bus interface, which has the advantages of small size, low po ...
* Question What is the purpose of the parametric test of the COS functional test? * Answer Verify that the expected error code can be returned when there are error parameters for each command. ...
* Question What are the data types of VHDL? * Answer Constants, signals, and variables are the most important data types in VHDL, representing a certain physical meaning. ...
* Question What is harmonic current? * Answer When the non-sinusoidal periodic current function is developed in Fourier series, the frequency is a general term for each sinusoidal component of an inte ...
* Question What is the piezoresistive coefficient? * Answer The relative change of the semiconductor resistance is approximately equal to the relative change of the resistivity, and the relative chang ...
* Question What aspects can I consider when choosing a Resistors? * Answer 1) In order to meet the low noise requirement, the resistance of the current passing through should be a metal film Resistors ...
* Question What is the design procedure for the LM5080? * Answer (1) Select a suitable sampling Resistors value. (2) In the baseline adjustment and feedback adjustment mode, it is necessary to decide ...
* Question What are the ETFC features? * Answer The user side of the board supports l2 FE interfaces. The board supports two GE interfaces. The board provides FE services for the processing board. The ...