1. Over-Voltage Protection (OVP) Test: When the output voltage of the power supply exceeds its maximum limit voltage, the power supp...
When the PN junction plus reverse voltage, that is, the positive pole of the power supply connected to the N area, the negative then P ...
Solid state relay and transformer couplingPhotoelectric coupling and the transformer coupling solid state relay input and output circuit o...
NFC mobile phones have built-in NFC chips that form part of an RFID module that can be used as RFID passive tags - to pay for ...