一、开关电源的常见故障尽管开关电源的线路结构、产品种类、型号的不同而有所不同,但其工作原理大同小异,故障类型及检修方法也基本相似。开关电源常见故障有: 1.无直流电压输出,但保险丝完好本故障是开关电源最常见的一种故障。产生本故障的原因有四种:一是过载保护,当负载发生短路时, First, the switching power supply common faults Although the switching power supply line structure, product type, type and different are different, but its working principle is similar, the type of failure and maintenance methods are also similar. Switching power supply common faults are: 1. No DC voltage output, but the fuse intact The fault is the most common type of switching power supply failure. There are four reasons for the failure: First, overload protection, when the load short-circuit occurs,