wkyong 发表于 6-6-2008 04:41 PM

Circuit design的IC ground?

我發覺到有些CIRCUIT DESIGN﹐IC的GROUND PIN是INPUT的NEUTRAL(IC GROUND 與NEUTRAL 是SHORT 的)。
這些DESIGN有甚麼好處與壞處?

Leolabs 发表于 8-6-2008 12:12 PM

是类比还是数字，还是MIXED SIGNAL???

楼主所指的NEUTRAL是GROUND吗???

pic 发表于 10-6-2008 08:55 AM

原帖由 wkyong 于 6-6-2008 04:41 PM 发表 http://chinese3.cari.com.my/myforum/images/common/back.gif
我發覺到有些CIRCUIT DESIGN﹐IC的GROUND PIN是INPUT的NEUTRAL(IC GROUND 與NEUTRAL 是SHORT 的)。
這些DESIGN有甚麼好處與壞處?
有一些Switch Mode power supply， 会把 DC Ground 和 AC240 的neutral 用Cap bridge 起来 （Y capacitor）， 目的是好像是减少EMI， 但我不确定。

stuartj643 发表于 10-4-2023 03:42 AM

A frequency converter generally consists of a rectifier stage (producing direct current) which is then reversed to generate AC of the preferred frequency. Datavision To ensure that variable frequency AC IM's operate efficiently, the AC must be distributed to the motors at the ideal frequency.
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