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电路图如下，还有EVM板的D2二极管板子的丝印方向，与原理图 的D2的指向不同
电路的MPPT点设计在18V，用18V的电源供电是不会有充电电流的。需要提高输入电压或者降低MPPT点。
问题已经解决，确实和MPPT点设定有关，还和温度监测有关
