Reasons for the burnout of military power modules

Recently received feedback from many people, sayingMilitary power moduleIt is burned out. Ask the editor what is the reason. The following editor summarizes the reasons for the burnout of several military power modules. I don't know if I can help you!

1. When wiring the military power supply module, the positive and negative poles of the power supply are reversed carelessly or in a hurry. Since the general power supply module does not have the protection function of wrong wiring, it will directly cause the power supply module to burn out.

2. Because the power module provides start, drive enable, pulse enable signal, dust accumulation and other reasons at the same time, it will also cause horizontal large current breakdown or pulse disorder, the surge current will also pass through the DC bus. The coordinate axis comes from the DC side, and these are one reason why the power module circuit is burned.

3. Military power modules will have over-current maintenance. There are two general protection methods, one is constant current, and the other is hiccup HICCUP mode. If the input impedance has a small capacitive impedance, the power module will point out that it is overcurrent, because it is required by the transient characteristics of the capacitor. This kind of problem is generally to increase the capacitive impedance, or increase the overcurrent maintenance point.

4. One is that the input voltage is greater than the larger allowable range of the power module. Pay attention to the instructions when using it. At the same time, the input voltage selection is not fluctuating and stable; the other is that the input voltage is too low and the load is heavy, which may cause the power supply. The module is damaged.

5. The power module is a constant voltage product. This product has poor capacity and load capacity. The output capacitor will cause the circuit to overcurrent and short-circuit during startup and damage the power module.

The above is the reason why the military power supply module is burned out by the editor. If you have anything else you want to add or if you have any questions, you can contact us, welcome to call!