Other Parts Discussed in Thread: UCC28780,
您好!请问UCC28781、UCC28780等器件是否支持使用隔离放大器来替换光耦+稳压源反馈的方案?或者说UCC28781这类芯片的FB引脚是内部误差放大器的输入引脚还是输出引脚?
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HI
应该是输出,但是又不是简单的输出,这个是依据光耦的电流来决定FB的电流或者电压,所以不能用隔离放大器来替代(至少我没有看到类似的控制)