I need to make a BJT voltage amplifier that gives me a gain of 25 (either in phase or out of phase). My restrictions are as follows:
Transistor: 2N2222 with a \(\beta\) of 150
Transistor power dissipation is less than 50 mW
Resistor only biasing
single DC power supply
Resistors have to be less than 500 kilo ohms
Coupling and bypass capacitors are "large" (1 mF)
Load resistance is 16.81 kilo ohms
I started off with a really simple design, that I think would work except that it has me using a resistor that is about 4 ohms, which makes no practical sense. Assume that the input AC signal is a "small" signal, and the small signal model can be approximated with the hybrid\(\pi\) model
See attached diagram:
Transistor: 2N2222 with a \(\beta\) of 150
Transistor power dissipation is less than 50 mW
Resistor only biasing
single DC power supply
Resistors have to be less than 500 kilo ohms
Coupling and bypass capacitors are "large" (1 mF)
Load resistance is 16.81 kilo ohms
I started off with a really simple design, that I think would work except that it has me using a resistor that is about 4 ohms, which makes no practical sense. Assume that the input AC signal is a "small" signal, and the small signal model can be approximated with the hybrid\(\pi\) model
See attached diagram:
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