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UCC28070交错并联2KW PFC 逐周限流异常



完全按照手册的电路设计的   但是在做电流限制是发现,负载电流大于设计10%时会有输入削波现象    但是继续加大负载削波现象会消失   即逐周限流功能无效  但是这时候输出还是会下降的