E MOSFET Bias

The voltage divider bias network is also useful for E MOSFETs, e.g. Figure 135. In the case of an n-type E MOSFET, we need V_GS positive.

**Figure 135:** n-channel E FET bias.
$\begin{figure} \begin{center} \epsfig{file=images/fetimg18.eps}\end{center}\end{figure}$

Indeed,

V_GS = V_G - V_S = V_GG

(127)

This equation as well as the square law (113) must be satisfied.

ANU Engineering - ENGN2211