这个电容起什么用?

疯狂的石头

昨天在修理家的小电风扇时,可调三个档的.电路图里一个电容,由于不方便电路图我就不画,请问高手,这个电容是起什么作用的啊?

mm1051162096

这个也太简单了吧

mm1051162096

那是个启动电容，就像人的精神动力一样，没了它就会死悄悄、、、

黄阿牛

移相电容，启动用的，看看普通书籍就行了

QGJJCFRRR

电容在交流电机中还有移相的作用。电容是电流比电压超前90度。

我叫新人

学习了。。  原来电扇里边（220V常用电机）上边电容是用于启动的啊~


那。。 用什么仪表来测量一个电容是否损坏或是其它容量什么的减小了？

小树子

那个电容是用来启动的，

weizidem

学习了，我做的东西都是3.3V的，第一次了解强电的东西。重要的是LZ电路图不摆上来，居然有人可以回答问题，强.

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启动电容