Bipolar Junction Transistors and Their Operation
Explore the construction, operation, and currents of bipolar junction transistors including pnp and npn types with clear illustrations and explanations. Learn about the terminals, biased junctions, and current flow in transistors.
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Presentation Transcript
Bipolar Junction Transistors 1
Sources & Required Reading ROBERT BOYLESTAD & LOUIS NASHELSKY, ELECTRONIC DEVICES AND CIRCUIT THEORY, 7thedition 2
Transistor Construction There are two types of transistors: pnp npn The terminals are labeled: E Emitter B - Base C - Collector 3
Transistor Operation The emitter-base junction is forward biased The base-collector junction is reverse biased 4
Transistor Currents Emitter current is the sum of the collector and base currents: The collector current is comprised of two currents: 5
