1.2. Output Circuit and DC Drain Voltage
For the dc circuit in Fig. 1.1, the drain voltage is determined from
Equation 1.3
As illustrated in Fig. 1.2, for the purpose of a solution to (1.3), the transistor can be replaced by a current source as shown in Fig. 1.2. Drain current ID is a function of VG; that is, ID = f(VG). Thus, in a design, the value of VG determines the value of VD. ID is related to VG according to
Equation 1.4
Figure 1.2. Circuit for illustrating the determination of the drain voltage, VD.
This relation and parameters ...
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