Let's explore the common failures of power modules, brought to you by Unikeyic!

Many users encounter short circuits or abnormal voltage and current issues with power modules shortly after purchasing and replacing them. To address this, it's essential to understand common power module faults and their solutions. Some of these issues stem from design flaws in the power modules. Therefore, it is highly advisable to learn about common problems through Unikeyic before making a purchase. Let's delve into this topic.

Abnormal Output/Input Voltage and CurrentFollowing the replacement of a power module, if monitored data indicates abnormal voltage or current, one should first consider whether the module has aged. Abnormal or unstable output voltage is often caused by the aging or damage of internal components. If the current is unstable, besides considering component aging or damage, the impact of temperature should also be considered, especially if the device operates under high temperatures for prolonged periods. Another scenario is when the output voltage is too high or too low; if this happens right after replacing the module, it suggests a design flaw in the power module.Low or Unstable Power EfficiencyIf low power efficiency is observed during regular use of the power module, it is necessary to check for damaged components. A sudden drop in module efficiency typically indicates a damaged inverter transistor. Another possibility is insufficient capacitor capacity. It is also important to verify whether the power fan is functioning correctly, as poor heat dissipation can lead to low module efficiency.Checking Module Components for Short CircuitsWhen a power module short circuit occurs, the first step is to inspect whether any unit module components are damaged. For example, if there is capacitor damage, poor contact at transformer joints, or damage to switching transistors, the output voltage of the power module may drop to zero, resulting in a short circuit.The above points outline some common causes of power module faults. By understanding these issues, we can avoid products with poor quality or flawed circuit designs when selecting modules through unikeyic, thereby choosing durable and high-quality power modules.