电动车48V充电器芯片3842的7脚为什么量不到电压？ 48V电动车充电器坏了，uc3842 电压问题
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1 3842\u51fb\u7a7f\u574f
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4\u5f00\u5173\u53d8\u538b\u5668\u63a5IC7\u811a\u4f9b\u7535\u7684\u4e8c\u6781\u7ba1\u51fb\u7a7f.\u9020\u6210\u542f\u52a8\u7535\u963b150K\u6b63\u5e38\u8fc7\u6765\u7684\u7535\u538b\u7ecf\u8fc7\u5f00\u5173\u53d8\u538b\u5668\u5230\u5730\u77ed\u8def
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2、查对地是否短路
因为是不好的呀
检查启动电阻, 大概是150K
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