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我在做一个太阳能给蓄电池充电的项目，铅酸电池的电压为12V，我看到典型电路上的输出是针对8V的蓄电池，若何调节为12V，该如何调节反馈电池的阻值
假设上反馈电阻为R1,下反馈电阻为R2. 针对12V铅酸电池，设计反馈电阻为12V*R1/(R1+R2)=2.1V即可。
如果铅酸蓄电池的电压为12V,一般充电电压在Vo=13V-14V,为什么反馈电阻不是Vo*R1/(R1+R2)=2.1V呢？求解答
