Technology

Technology

Transistor has three layers of N and P.  ((NPN OR PNP),

Terminals of transistor: collector, base and emitter.

Emitter layer emits electrons: it is heavily doped.

Base layer is lightly doped-thickness 10.6m

Collector layer collects electrons: size is large - dissipates large power.

For the operation of a transistor - base - emitter junction is forward biased.

Collector - base junction is reverse biased.

Collector current, 1 c = emitter current, 1e.

THREE CONFIGURATION OF TRANSISTOR OPERATION.

COMMON BASE

COMMON EMITTER

COMMON COLLECTOR.

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