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2 cards from this section. Quick, good the night before a test.
What does the emitter resistor do in a common emitter amplifier?
Think about the role of resistors in circuits.
Define transconductance in your own words.
Focus on the relationship between input and output.
What is the effect of adding an emitter resistor in a common emitter amplifier?
Think about the dual purpose of R_E.
True or False: The lower cutoff frequency is determined by the coupling capacitors and resistors.
Recall how frequency affects the gain.
If the emitter resistor is increased to stabilize the circuit against beta variations, how will the voltage gain change? Provide numerical reasoning for your answer.
Use example values for g_m and R_C to see the impact of varying R_E.
Design an amplifier with a specific gain of 10 and a lower cutoff frequency at 100Hz. What components might you select and what considerations must be made?
Calculate based on the relationships discussed regarding gain and cutoff frequency.
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