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The JFET shown in figure 3b has parameter IDSS=8mA and Vp=4V. Determine VG, IDSQ, VGSQ and VDSQ
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written 3.5 years ago by |
$V_{{DS}_Q}=V_{DD}-I_D(R_D+R_S)=5-(5\times10^{-3})(3+0.5)\times10^3=-12.5V$
$V_{{GS}}=-I_DR_S =-8V$
$V_{G_Q}=\dfrac{R_2V_{DD}}{R_1+R_2}=\dfrac{1200}{200 \times10^3}=6mV$
$I{D_Q}=\dfrac {I_{DSS}}{2}=4mA$