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5 cards from this section. Quick, good the night before a test.
What is the role of a current mirror in an amplifier?
Think about how it stabilizes current.
What is the value of Beta used in our calculations?
Recall the assumed values given in the section.
What is a current mirror primarily used for in amplifier circuits?
Think about the role of steady current in amplifier operations.
If the collector current is 2 mA, what is the base current for a Beta of 100?
Use the relationship between collector and base currents to solve.
Suppose Beta of transistor-3 and transistor-4 increased to 250, calculate the new collector currents and predict the impact on output voltage.
Consider changes in current flow between mirrors.
Design an amplifier circuit using a current mirror that can handle an input voltage of 1V and output a gain of 1000. What components are necessary?
Start with Ohm's Law and gain definitions.
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