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3 cards from this section. Quick, good the night before a test.
Define current gain in the context of common base circuits.
Think about the relationship between output and input currents in amplifiers.
What does it mean for a circuit to be in an unloaded condition?
Consider how this configuration isolates the output for circuit analysis.
What is the main advantage of low input resistance in a common base circuit?
Think about how input resistance affects current flow.
True or False: The output current of a common base circuit can be equal to the input current under loaded conditions.
Consider what 'loaded condition' means.
A common base amplifier has an input current of 2 mA and an output current of 1.8 mA. Calculate the current gain and discuss whether the circuit performs well as a buffer.
Consider the impact of the gain on circuit performance and its effectiveness in buffering.
Design a common base circuit to amplify a current signal from a sensor that outputs 500 µA. If you need at least a factor of 5 gain, what should the output current be, and why might this configuration work well?
Reflect on how gain plays a role in the application of signal processing and amplification.
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