新疆喜乐彩走势图

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开关电源设计中如何正确选择滤波电容?
2017-4-8 9:57:19      点击:

 滤波电容在开关电源中起着非常重要的作用,如何正确选择滤波电容,尤其是输出滤波电容的选择则是每个工程技术人员都十分关心的问题。我们在电源滤波电路上可以看到各种各样的电容,100uF,10uF,100nF,10nF不同的容值,那么这些参数是如何确定的?不要告诉我是抄别人原理图的,呵呵。

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  数字电路新疆喜乐彩走势图要运行稳定可靠,电源一定要“干净”,并且能量补充一定要及时,也就是滤波去耦一定要好。什么是滤波去耦,简单的说就是在芯片不需要电流的时候存储能量,在你需要电流的时候我又能及时的补充能量。不要跟我说这个职责不是DCDC、LDO的吗?对,在低频的时候它们可以搞定,但高速的数字系统就不一样了。

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  开关电源设计中如何正确选择滤波电容?

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  开关电源设计中如何正确选择滤波电容?

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