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1.电源输出电压过低原因根据维修经验,除稳压控制电路会引起输出电压过低外,还有一些原因会引起输出电压过低。主要有以下几点:(1)开关电源负载有短路故障(特别是DC/DC变换器短路或性能不良等)。此时,应断开开关电源电路的所有负载,以区分是开关电源电路不良还是负载电路有故障。若断开负载电路电压输出正常,说明是负
1. The power output voltage is too low Reason According to the maintenance experience, in addition to the regulator control circuit will cause the output voltage is too low, there are some reasons will cause the output voltage is too low. The main points are the following: (1) switching power supply load short-circuit fault (especially DC / DC converter short circuit or poor performance, etc.). At this moment, should cut off all load of the switching power supply circuit, in order to distinguish whether it is the poor switching power supply circuit or the load circuit is defective. If you disconnect the load circuit voltage output is normal, that is negative