三極管
雙極(ji)(ji)(ji)性(xing)結型晶體管(guan)(Bipolar Junction Transistor, BJT)簡稱雙極(ji)(ji)(ji)性(xing)晶體管(guan),俗稱三(san)極(ji)(ji)(ji)管(guan)(BJT),是一種具(ju)有三(san)個終端的半(ban)導體器件(jian),能夠把微弱信號(hao)放大(da)成(cheng)幅度值較大(da)的電(dian)(dian)信號(hao),也可(ke)用(yong)作無觸點開(kai)關。三(san)極(ji)(ji)(ji)管(guan)具(ju)有電(dian)(dian)流放大(da)作用(yong),是電(dian)(dian)子(zi)電(dian)(dian)路中...
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