锂电升压正负12V给后级供电 效率要求不是太高 电流500mA 本来打算用34063扩流 但是要满足锂电的电压输入范围 也得照顾锂电的充电 方案始终没敲定~
设计并非要达到产品要求 请技术员大大们支支招 3Q啦
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