The problem of unstable output voltage of the power adapter can be caused by a variety of reasons, including a failed feedback loop, a damaged voltage reference source, insufficient output filter capacitors, and large changes in load current. In order to solve this problem, here are a few things you can try:
1.Check the feedback loop and voltage reference source: Check that the feedback loop and voltage reference source of the power adapter are working properly. If the feedback loop or voltage reference source is faulty, you can try to replace the faulty component.
2.Increase the output filter capacitor: If the output filter capacitance of the power adapter is insufficient, you can try increasing the capacity of the output filter capacitor. This helps stabilize the output voltage and reduce fluctuations.
3.Replace the power adapter: If neither of the above methods can solve the problem, consider replacing it with a new one. When buying a new power adapter, you should choose the proper brand and manufacturer, and make sure that its voltage and current specifications match the electronic equipment.
4.Pay attention to the environment of use: When using the power adapter, you should pay attention to the environment in which it is used. Avoid leaving the power adapter in a hot, humid, or dusty environment. Clean the surface and jack of the power adapter regularly to maintain its good heat dissipation performance.
5.Proper use and maintenance: The power adapter should be used correctly and avoid using too much force when plugging and unplugging the power plug to prevent damage to the internal circuits. In addition, the cable of the power adapter should be checked regularly for damage or bending to prevent its performance from degrading. Dazhong Electronics Power Adapter.