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2 cards from this section. Quick, good the night before a test.
What is the role of a current mirror in a common emitter amplifier?
Think about how current mirrors operate.
Define collector current in the context of transistors.
Consider which terminal typically carries the most current.
What is the type of configuration used for a common emitter amplifier?
Consider which terminal is common to both input and output.
True or False: The base current has no effect on the collector current under ideal conditions.
Reflect on the relationship between base and collector currents.
A common emitter amplifier has a collector current of 2.5 mA instead of 2 mA. How does this affect the output voltage if the early voltage is still 100 V?
Calculate the effect of the output resistance.
Calculate the new base current if the beta increases to 150 while keeping the collector current at 2 mA.
Remember that changes in beta affect the calculations.
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