This article discusses the chopper control daring the electric and brake of the direct electric automobile.

本文就直流电动汽车在电动和制动时的斩波控制进行讨论。

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This text mainly from an example with solid engineering, analyze to conduct electricity to press the harmonious wave and can result in the electronics type electric leakage chopper act.

本文主要从一个工程实例，分析出过电压和谐波可以造成电子式漏电断路器动作。

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