Other Parts Discussed in Thread: UCC28810
UCC28056隔离反激QR电路设计问题,参考规格书制作的电路图如附图,有以下问题需要请教:
输入:90-264VAC,PF>0.9,输出:24V/3A
1. 初级侧Vcc启动电路是否正确?待机功耗大约多少?
2. 初级侧ZCD/CS电路是否正确?
3. 初级侧VOSNS光耦反馈电路是否正确?
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Hi
UCC28056适合做非隔离的PFC, 如果你需设计隔离的PFC建议选择UCC28810.