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要求不高的话,可以用UCC28810做单级方案,优点是整个拓扑简单。应用电路请参考附件。
如果对效率和PF要求高的话可以只用UCC28810做PFC,后面加UCC25710做LLC。
如果针对电流均衡度要求较高的情况,隔离副边可以考虑用TLC5960做均流。