被动开关;被动式开关

passive switch的用法和样例：

例句

By using zero-voltage-transition techniques, a lossless snubber circuit has been developed to reduce the switching losses of the auxiliary switch.本文针对辅助开关采用零电压转换方式以降低辅助开关损失，让所有的主动与被动开关元件皆操作在柔性切换状态下，提高整体效率。

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