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TPS40210做反激式电源驱动不了后级的开关电源电路。

Other Parts Discussed in Thread: TPS40210

我用TPS40210做了一个反激式的自动升降压电源,空载时输出稳定电压12V,但是一旦加了负载以后(尤其是后置级再加一级开关电源电路)电压就急剧下降且不稳定。