Consider a JFET that has the curves shown in Figure 9 Estima

Consider a JFET that has the curves shown in Figure 9 Estimate the value of the threshold voltage V_T. Justify your answer. For what value of the Justify your answer For what values of the drain What current flows through saturation) region? when it is in the flat (FET If the FET is in the circuit of Figure 9.35. for what values of the drain-source voltage is the FET in the flat region? Justify.

Solution

vt is found to be negative it follows the equation vt= vgs-vds

for vgs= 0.3v , 0v ,-0.4v ,the vt are -0.2,-0.5,-0.9

a)for a vgs= -0.5 ,vt=1v, the current is 2.2ma