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场效应管怎么测量好坏

更新时间: 2020-09-19 00:00:00     

用万用表检测场效应管的好坏。

将指针式万用表拨至“RX1K”档,并电调零。场效应管带字的一面朝着自己,从左到右依次为:G,D,S。将黑表笔接在D极,红表笔接在S极上,此时,万用表指针应不动;然后再对换表笔,再测,此时,万用表指针应向右摆动。用指针万用表测,G极,与其余两个极之间,无论是两个表笔怎样对调测,万用表指针均应不动。说明场效应管完好。

关键词: 效应 怎么 测量 好坏

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