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关于ucc28019 仿真提示收敛错误 急求大神帮忙

Other Parts Discussed in Thread: UCC28019

最近做了一个800w的升压仿真电路 元器件参数设置根据相关公式计算的  为什么老是提示收敛问题   还有boostccmdcm是干嘛用的 本人新手 芯片本身不就是固定65khz的吗  跪谢