请教一个问题,UCC2808开环用法中,为何将FB脚拉到地,COMP脚通过外接一个15K电阻到地,开环就能输出接近50%(考虑死区)占空比的输出,麻烦解释一下,看UCC2808的框图,没看明白,谢谢。
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请教一个问题,UCC2808开环用法中,为何将FB脚拉到地,COMP脚通过外接一个15K电阻到地,开环就能输出接近50%(考虑死区)占空比的输出,麻烦解释一下,看UCC2808的框图,没看明白,谢谢。