Fault analysis and solution of power module

Power module current sharing refers to that two module power supplies with the same output current share the load equally, and the module power supply needs to undergo strict current sharing test before leaving the factory. If the power supply works under the same voltage, there is no need to adjust the current sharing.

If there is uneven current in the module power supply, the following methods can be used to solve it.

1. Completely disconnect the current sharing cable and communication cable of the module power supply, and only disconnect one module power supply for charging.

2. After charging, load the module power supply. Generally, the load power supply is between one-third and two-thirds of the rated current.

3. Check whether the current sharing bus has voltage one by one when the power module is loaded. If there is no voltage, it means that the current sharing current of the charging module has been broken.