现欲给自制充电宝加上单片机,单片机供电3.3V,充电宝内部电池正常工作在2.9V~4.2V,于是当内部电池在3.3V~4.2V时经过处理给单片机供电3.3V,当内部电池在2.9V~3.3V时相当于不处理给单片机供电2.9V~3.3V,请问有什么解决方案呢?
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现欲给自制充电宝加上单片机,单片机供电3.3V,充电宝内部电池正常工作在2.9V~4.2V,于是当内部电池在3.3V~4.2V时经过处理给单片机供电3.3V,当内部电池在2.9V~3.3V时相当于不处理给单片机供电2.9V~3.3V,请问有什么解决方案呢?