1.原边反馈，省431和光耦，节省成本；                                                                                                                                                           2.即可CC模式做恒压，也可CV模式做恒流,恒流恒压精度±5%以内；                                                                                                                                                                                 3.带抖频，EMI效果好；                                                                                                                                                  4.带降频，降低待机功耗(≤0.15W).

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