After the pinch-off voltage (Vp) is reached, the IDbecomes nearly constant (called as IDmaximum, IDSS-Drain to Source current with Gate Shorted).For larger value of VDS, as VDS increases, the depletion layer become wider, causing the resistance of channel increases.Therefore, ID is proportional to VDS for small values of VDS Then, when VDS is increased, ID increases.JFET Characteristic for VGS = 0 V and 0 ![]()
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