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UCC28600多输出反激电源开关噪声问题(急)

Other Parts Discussed in Thread: UCC28600

Hi :

目前设计采用UCC28600设计18-36V输入,15Vx3路,9Vx1路输出,调试遇到如下问题:

1.输出存在开关管关断噪声,如下图:

2.变压器是否有推荐设计,或者对应设计工具?

3.反馈环路如何确定稳定性和是否可用?