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When current gain and emittor current are given how to calculate base current |
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Answer» related to bipolar junction transistor in the common EMITTER configuration. The CURRENT GAIN is defined as α, which is usually around 50. A small DC current in the base of the transistor triggers a high current in the collector region which flows TOWARDS the emitter. The base is less dop ed and collector is heavily dop ed with impurities.Current gain = collector current / base current = [ emitter current - base current ] / base current = emitter current / base current - 1base current = emitter current / [ current gain + 1 ] |
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