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Analog Electronics with LabVIEW®
book

Analog Electronics with LabVIEW®

by Kenneth L. Ashley
October 2002
Intermediate to advanced content levelIntermediate to advanced
432 pages
9h 20m
English
Pearson
Content preview from Analog Electronics with LabVIEW®

B.3. BJT Base, Emitter, and Collector Currents in the Active Mode

The discussion of the transistor mechanism of Unit B.1 is extended here to include base-current mechanisms, which exist in the real transistor, and the effect of base-width modulation as discussed in Unit B.2. Initially, the case of active-mode operation is discussed, and this is followed by the general-bias case, which includes the possibility of both pn junctions becoming forward biased.

In the device model for the bipolar junction transistor, the parameter βDC is

Equation B.6

where IB is the composite of all contributions to the base current. (The use of “dc” is consistent ...

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