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UCC28070在AC220V时带2KW没问题，在AV85V时只能去到600W（后级半桥，输出65V，10A）就保护了，测量VAO脚电压去到5V，请问哪里参数可以调整一下？
UCC28070的产品页面有Excel Applications Design Tool、WEBENCH以及仿真模型，您可以参考这这些工具尝试调整参数：
https://www.ti.com.cn/tool/cn/download/SLUC114
https://www.ti.com.cn/tool/cn/WEBENCH-POWER-DESIGNER
www.ti.com.cn/.../UCC28070
