在反激式开关电源设计中,最常见的方案是UC2844+TL431作为反馈,哪位大神可以分析一下TL431的具体工作方式。
另外,光耦在反馈过程中,是工作于开关状态还是工作于线性状态? 虽然开关电源调通了,但是这个TL431反馈的问题困扰了我很久,希望各位不吝赐教。
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