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2 cards from this section. Quick, good the night before a test.
What is a current mirror used for?
Think about its purpose in amplifier designs.
What does high output resistance signify?
Consider how output stability is maintained.
What is the purpose of a current mirror?
Consider its use in stable current applications.
True or False: High output resistance in a current mirror helps to minimize the dependency of output current on voltage.
Think about how output variations affect circuit performance.
A current mirror circuit consists of two BJTs. The reference current is set to 3mA, but due to current losses, the output is observed to be only 2.5mA. If a Beta-helper transistor is added, how will it likely affect the output current?
Consider how the Beta-helper circuit addresses current losses.
You are tasked with designing a current mirror that requires an output current of 5mA and a minimum combined voltage of 2.5V from three different voltage sources. What factors will you consider when selecting transistors for this design?
Think about saturation voltages and their impact on circuit function.
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