enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Common collector - Wikipedia

    en.wikipedia.org/wiki/Common_collector

    Figure 1: Basic NPN common collector circuit (neglecting biasing details).. In electronics, a common collector amplifier (also known as an emitter follower) is one of three basic single-stage bipolar junction transistor (BJT) amplifier topologies, typically used as a voltage buffer.

  3. Bipolar junction transistor - Wikipedia

    en.wikipedia.org/wiki/Bipolar_junction_transistor

    The remainder of the electrons recombine with holes, the majority carriers in the base, making a current through the base connection to form the base current, I B. As shown in the diagram, the emitter current, I E, is the total transistor current, which is the sum of the other terminal currents, (i.e. I E = I B + I C).

  4. Diode-connected transistor - Wikipedia

    en.wikipedia.org/wiki/Diode-connected_transistor

    A diode-connected transistor is made by connecting the base and collector of a BJT; the drain and source of a JFET [1] the gate and drain of a MOSFET; Diode-connected transistors are used in current mirrors to provide a voltage drop that tracks that of the other transistor as temperature changes. [2] They also have very low reverse leakage ...

  5. Common source - Wikipedia

    en.wikipedia.org/wiki/Common_source

    One trick is to add a common-gate (current-follower) stage to make a cascode circuit. The current-follower stage presents a load to the common-source stage that is very small, namely the input resistance of the current follower (R L ≈ 1 / g m ≈ V ov / (2I D) ; see common gate). Small R L reduces C M. [2]

  6. 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.

  7. Emitter-coupled logic - Wikipedia

    en.wikipedia.org/wiki/Emitter-coupled_logic

    ECL uses an overdriven bipolar junction transistor (BJT) differential amplifier with single-ended input and limited emitter current to avoid the saturated (fully on) region of operation and the resulting slow turn-off behavior. [2] As the current is steered between two legs of an emitter-coupled pair, ECL is sometimes called current-steering ...

  8. Hybrid-pi model - Wikipedia

    en.wikipedia.org/wiki/Hybrid-pi_model

    Full hybrid-pi model. The full model introduces the virtual terminal, B′, so that the base spreading resistance, r bb, (the bulk resistance between the base contact and the active region of the base under the emitter) and r b′e (representing the base current required to make up for recombination of minority carriers in the base region) can be represented separately.

  9. Translinear circuit - Wikipedia

    en.wikipedia.org/wiki/Translinear_circuit

    A translinear circuit is a circuit that carries out its function using the translinear principle. These are current-mode circuits that can be made using transistors that obey an exponential current-voltage characteristic—this includes bipolar junction transistors (BJTs) and CMOS transistors in weak inversion.