FET and BJT Difference: FET and BJT Difference (CS, CD, and CG Circuit Comparison) - Table 11-1 compares Zi, Zo and Av for CS, CD, and CG circuits. As already discussed, the CS circuit has voltage gain,…

Common Gate Circuit: The FET Common Gate Circuit (CG) shown in Fig. 11-19 uses voltage divider bias. The ac output is taken from the drain terminal, and an external load (RL) is capacitor-coupled to the…

Common Drain Amplifier Circuit Diagram: The FET Common Drain Amplifier Circuit Diagram shown in Fig. 11-14 has the output voltage developed across the source resistor (RS). The external load (RL) is capacitor-coupled to the source…

FET Common Source Amplifier with Unbypassed Source Resistors: Equivalent Circuit - When an unbypassed source resistor (RS) is present in a FET Common Source Amplifier circuit, as shown in Fig.11-10(a), it also appears in the…

Common Source Circuit Analysis: A FET Common Source Circuit Analysis is shown in Fig. 11-­6. With the capacitors treated as ac short-circuits, the circuit input terminals are the gate and source, and the output terminals…

FET Equivalent Circuit Model: The complete FET Equivalent Circuit Model is shown in Fig. 11-5(a). It is seen that tilt source terminal is common to both input and out, so this is a common-source equivalent…

Coupling Capacitors: Coupling Capacitors are required at a circuit input to couple a signal source to the circuit without affecting the bias conditions. Similarly, loads are capacitor-coupled to the circuit output to avoid the change…