Measurement Diagnosis of Common Mode Inductors - Overview of Common Mode Chokes
When designing the filter, it is assumed that the two parts of the common mode and the differential mode are independent of each other.
Car control electronic product software development process
The car vehicle control electronic product software development process is a "V" shape development process.
Color ring resistance identification method
The five-ring resistance is a precision resistor. The first three rings are numerical values. The last ring is also an error color ring. It is usually three colors of gold, silver and brown. The error of gold is 5%, the error of silver is 10%, and the error of brown is 1%, the colorless error is 20%, and occasionally there is a green color error, the green error is 0.5%. Precision resistors are commonly used in military, aerospace and other aspects.
Discrimination of semiconductor triodes - simple judgment
Turn the multimeter to the buzzer, the red pen to fix one pole. Use the black pen to test the other two poles.