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傑森
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傑森 asked in 科學工程學 · 1 decade ago

何謂導通電阻?要如何測量?

如題、不知道有沒有人知道什麼是導通電阻?是否是特性阻抗呢?要如何測量呢?是否需要特殊的儀器?還是三用電錶就可以量測

呢?

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  • 1 decade ago
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    導通電阻或導通阻抗通常是只MOSFET(金屬氧化物半導體場效應電晶體)於導通階段時,Drain汲極與Source源極兩端的跨壓與電流相除而得到的電阻值。也可叫做特性阻抗,因為該阻抗會隨著Gate閘極電壓大小會改變Drain汲極與Source源極兩端的跨壓,使得導通阻抗有些變化。

    若僅用三用電錶是無法量測的,其必須搭配驅動電路與電源供應器及量測儀器。建議您參閱 C. -T. Salame, "Extraction of RDS(ON) of n-Channel Power MOSFET by Numerical Simulation Model", Active and Passive Electronic Components Volume 23 (2001), Issue 4, Pages 175-183. (http://www.hindawi.com/GetArticle.aspx?doi=10.1155...

    Source(s): C. -T. Salame, ”Extraction of RDS(ON) of n-Channel Power MOSFET by Numerical Simulation Model”, Active and Passive Electronic Components Volume 23 (2001), Issue 4, Pages 175-183. (http://www.hindawi.com/GetArticle.aspx?doi=10.1155...
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  • 1 decade ago

    你用三用電錶就可以測出電阻 是多少 是否正常

    其餘有沒有倒通 要看他用多少安培的電阻 線路是否有短路

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