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tps61040 升压 使用tina ti 模拟 稳态求解法发现输出电压无法稳定

Other Parts Discussed in Thread: TPS61040

tps61040 升压电路150v输入 180v输出,  使用tina ti 模拟 稳态求解法发现输出电压一直下降,250ms后已跌置150v,不知是什么原因,特此求教,请各位大神伸以援手!