What are the causes of damage of rectifier bridges?

What are the causes of damage of rectifier bridges?

If the rectifier bridges circuit fails, it is found that the rectifier bridge is burned out, generally because the heat sink is not large enough, the overload impulse current is too large, and the heat cannot be dissipated.

 rectifier bridge

1. The load of the diode rectifier bridges circuit is short-circuited and the insulation is not good. Caused by excessive load current.

2. Frequent start-stop power supply, if the inductive load belongs to the energy storage element, then it will produce back electromotive force. Reverse breakdown of the rectifier element. At the time of bridge rectification, only one is broken. Then the symmetrical bridge arm will burn out!

3. Individual components are used for a long time and the quality decreases!

4. The input voltage is too high.