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如何判断开关电源是正激还是反激

2025-03-25 20:49:27

推荐回答（2个）

回答1：

开关电源的开关管，经输出变压器一次侧形成回路，它有两种工作状态，一是导通，一是截止，变压器二次侧经二极管整流输出直流。
如果是开关管在截止期，变压器二次侧的感应电压经二极管整流输出直流，就属于“反激”；
如果是开关管在导通期，变压器二次侧的感应电压经二极管整流输出直流，就属于“正激”。

回答2：

什么是开关电源的正激和反激？这些是基础理论，应该掌握

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