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產品分類

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科普知識
數據分類:
三極管

三極管的分類

發布日期:2022-10-09 點擊率:67


BJT按照用途劃分種類更多,主要有下列一些:
    普通管,用于一般對電流、電壓等參數要求不高的 場合。
    低噪聲高管,用于前置放大器中,它的噪聲很小,而在小電流情況下又有較大的電流放大系數。
    功率放大管(簡稱功放管),用于信號的功率放大。
    高頻管,它的高頻特性好,用于高頻電路中。
    開關管,它起電子開關的作用,即控制電路的通、斷。
    達林頓管,也叫復合管。它具有高電流放大系數,用于功率放大和驅動電路。


(a)NPN達林頓管                              (b)PNP達林頓管
圖   達林頓管的結構

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