The reasons for the inconsistent voltage drop of the four diodes in the rectifier bridge may be the following:
The diode mode is mainly used to measure the forward voltage drop of the diode, while the buzzer mode, also known as the on/off mode, is mainly used to measure the continuity of the circuit. Some multimeters combine the buzzer mode with the diode mode, while others separate these two modes.
A rectifier bridge typically consists of four electrodes, two of which are positive (Anode, marked as AC,~or arrow) and the other two are negative (Cathode, marked as -, - or circle).
Schottky diode is a special type of diode characterized by low voltage drop and fast switching speed.
1. Breakdown voltage V (BR), 2. Maximum reverse pulse peak current IPP
Testing the quality of high-voltage diodes in microwave ovens can be done through the following steps