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The w:depletion regions of the emitter-base and base-collector junctions are marked. E c {\displaystyle E_{c}} is the w:conduction band , E f {\displaystyle E_{f}} is the device w:fermi energy level, E i {\displaystyle E_{i}} is the intrinsic Fermi level of the undoped semiconductor, and E v {\displaystyle E_{v}} is the w:valence band .
The collector–emitter current can be viewed as being controlled by the base–emitter current (current control), or by the base–emitter voltage (voltage control). These views are related by the current–voltage relation of the base–emitter junction, which is the usual exponential current–voltage curve of a p–n junction (diode).
A load line diagram, illustrating an operating point in the transistor's active region.. Biasing is the setting of the DC operating point of an electronic component. For bipolar junction transistors (BJTs), the operating point is defined as the steady-state DC collector-emitter voltage and the collector current with no input signal applied.
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GEMINI (MAY 21 - JUNE 20) January calls for financial mindfulness, Gemini.With Mars, the planet of action, moving retrograde in your money house, you’ll feel pressure to get your budget in order.