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2 cards from this section. Quick, good the night before a test.
What is the function of a coupling capacitor in a common emitter amplifier?
Think about DC and AC signal interactions.
Define quiescent point.
Consider what happens when signals are not applied.
What parameter directly influences the voltage gain of a common emitter amplifier?
Consider which values are multiplied to obtain gain.
True or False: The quiescent point should be set to maximize output swing.
Think about balance in the output range.
Design a common emitter amplifier for a small audio application targeting a gain of 40. Given a power supply of 10V and a maximum power dissipation of 20mW, outline the steps to choose appropriate resistor values.
Remember that understanding gain and power dissipation involves balancing act between V, I, and RC.
You need to design an amplifier circuit that uses a silicon BJT with β = 150. Calculate the necessary parameters if you want a quiescent current of 1mA, and discuss how the output swing will be affected by your choices.
Think about how the quiescent current and beta affect the biasing network.
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