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求升压电源方案

Other Parts Discussed in Thread: UCC28050, UC3842, TPS40210


输入220Vac,输出500~750V,功率10W內。

求一个可行的拓扑方案。

试过flaybck架构一直有问题,且变压器的绕制麻烦,想说用boost架构,有推荐的 PWM IC 吗

谢谢〜