电源功率100W,输入电压85~265V,输出分三路:分别为5V/10A,12V/3A,-12V/1A.
满负载测试时,低压整机效率很低,只有65%左右,高压还好72%(设计的电
源效率为75%),电源工作一段时间后,高低压壮态TOP249Y芯片非常的热,
我估计电源工作不了多久就会烧坏.并三组电压都呈下降曲势.请教电源
哪里出了问题?望各位不令赐教!!!!!
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