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好吧问答库 > 京东上四五十块钱卖的48v电动车控制器好用么，

京东上四五十块钱卖的48v电动车控制器好用么，

2025年04月07日 00:33

有2个网友回答

网友（1）：

这可说不准，不过七、八十也可以买到了。

网友（2）：

难说，十几元的都有，普通充电器通常就是三四十，充电器充电电路都是常见的开关电源变换器，通过高频变压器输出58v，整流滤波后，一个电压比较器连接到电瓶两端，电压比较器通过电瓶电压，判断电瓶状态，输出通过光电耦合器控制开关管方波占空比，达到控制充电电流。

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