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UCC28950同步整流做电池充电器是否会出现电流反灌?

Other Parts Discussed in Thread: UCC28950

用UCC28950同步整流结构做电池充电器,输出直接接电池,当输出电压低于电池电压时(占空比减小时),会出现电池电流反灌现象吧?应该会损坏同步整流管吧?请大家给出明确的答案,谢谢!