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4 cards from this section. Quick, good the night before a test.
Define a BJT and its principal components.
Think about the types of semiconductor materials used.
What happens to the minority carrier concentration in the forward bias?
Consider the behavior of p-n junctions in forward bias.
What configuration primarily allows current flow through the BJT?
Recall which bias configuration supports conduction.
Is the collector current generally greater than the base current?
Think about what the amplification means for the currents.
A BJT has a base current of 5 µA and a β value of 150. Calculate the collector current and discuss the implications of this value in a circuit.
Use the current gain formula.
Assume a BJT operates at high frequency. Discuss how the intrinsic time delays of minority carriers might affect performance.
Think about the effect of speed on current flow in circuits.
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