图 1 - 3 所示电路,设二极管都是理想的,Vi=10 V ,当开关 S 闭合时 V 0 =_____V ,二极管承受的最大反向电压 V RM =_____V 。当开关 S 打开时 V 0 =_____V , V RM =_____V 。
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