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  2. File:Bjt forward active bands.svg - Wikipedia

    en.wikipedia.org/wiki/File:Bjt_forward_active...

    Date/Time Thumbnail Dimensions User Comment; current: 01:52, 23 August 2006: 740 × 400 (87 KB): Matt Britt == Summary == Energy band diagram of a simple NPN bipolar junction transistor in forward-active mode showing electron energy versus position.

  3. Bipolar junction transistor - Wikipedia

    en.wikipedia.org/wiki/Bipolar_junction_transistor

    Bipolar transistors have four distinct regions of operation, defined by BJT junction biases: [9] [10] Forward-active (or simply active) The base–emitter junction is forward biased and the base–collector junction is reverse biased. Most bipolar transistors are designed to afford the greatest common-emitter current gain, β F, in

  4. Bipolar transistor biasing - Wikipedia

    en.wikipedia.org/wiki/Bipolar_transistor_biasing

    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.

  5. Common collector - Wikipedia

    en.wikipedia.org/wiki/Common_collector

    The transistor continuously monitors V diff and adjusts its emitter voltage to equal V in minus the mostly constant V BE (approximately one diode forward voltage drop) by passing the collector current through the emitter resistor R E. As a result, the output voltage follows the input voltage variations from V BE up to V +; hence the name ...

  6. Early effect - Wikipedia

    en.wikipedia.org/wiki/Early_effect

    Early, is the variation in the effective width of the base in a bipolar junction transistor (BJT) due to a variation in the applied base-to-collector voltage. A greater reverse bias across the collector–base junction, for example, increases the collector–base depletion width, thereby decreasing the width of the charge carrier portion of the ...

  7. DC bias - Wikipedia

    en.wikipedia.org/wiki/DC_bias

    The bias network is designed to preserve the applied AC signal. Similarly, amplifiers using field-effect transistors or vacuum tubes also have bias circuits. The operating point of an amplifier greatly affects its characteristics of distortion and efficiency; power amplifier classes are distinguished by the operating point set by the DC bias.

  8. Faithful amplification - Wikipedia

    en.wikipedia.org/wiki/Faithful_amplification

    In electronics, faithful amplification is the amplification of a signal, particularly a weak one, by a triode or a transistor such that the signal changes in amplitude but not in shape. [ 1 ] [ 2 ] [ 3 ] In order to achieve this with a bipolar transistor , the transistor is biased .

  9. Translinear circuit - Wikipedia

    en.wikipedia.org/wiki/Translinear_circuit

    The following are the alternating loops that implement the desired equations and some biasing schemes for the circuit. The translinear loops that implement our desired equations. A biasing scheme for the alternating TL two-quadrant multiplier circuit using diode connections and an EP connection. A biasing scheme that consolidates some current ...