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用过UCC256301芯片的老师们,谈谈经验,我搞了几天搞不定

Other Parts Discussed in Thread: UCC256301

原来发的帖https://e2echina.ti.com/question_answer/analog/power_management/f/24/t/184800,用的是WEBENCH设计的电路,测试情况如下:

又重新使用UCC256301的参数计算EXCEL文件,算得的变压器等谐振部分的参数,重装上去后,仍然和上面一样的情况。

变比N=9.5.

Lr=41uH

Cr=63nF

Lm=328uH