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如图所示,具体的参数取值已经标出来了,现在的情况是输入24V60mA,输出12.6V59mA,效率只有不到50%,而且34063也很发烫,线圈原边20圈副边15圈,
到底怎么才能让效率达到70%以上啊?还有就是用作反馈的tlp521的工作电流范围怎么选择?怎么控制变电比?
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