Can we regard square wave signals as switch quantities, while sine wave signals are analog quantities? Do stepless speed regulation and dimming use sine wave signals?
With a single-chip microcomputer as the control device and a liquid crystal LCD as the display device, the device to be tested is selected through a menu, the test process is completed automatically,
Any trace on the PCB will cause delay to the signal when passing a high-frequency signal. The main function of serpentine trace design on the PCB is to compensate for the smaller delay parts in the "s