升压电路用的TPS61200,降压电路TPS5430。输出的电压均正常,给不同的ES,当电压大于某个值是,充电电流突然变得很大,当电压小于某个值时,电流又突然变得很小,这是什么原因。充电电流与电压不是大致的正相关关系
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