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  2. Transistor - Wikipedia

    en.wikipedia.org/wiki/Transistor

    The bipolar junction transistor, the first type of transistor to be mass-produced, is a combination of two junction diodes and is formed of either a thin layer of p-type semiconductor sandwiched between two n-type semiconductors (an n–p–n transistor), or a thin layer of n-type semiconductor sandwiched between two p-type semiconductors (a p ...

  3. Load line (electronics) - Wikipedia

    en.wikipedia.org/wiki/Load_line_(electronics)

    The intersections of the load line with the transistor characteristic curves represent the circuit-constrained values of I C and V CE at different base currents. [2] If the transistor could pass all the current available, with no voltage dropped across it, the collector current would be the supply voltage V CC over R L. This is the point where ...

  4. Single-electron transistor - Wikipedia

    en.wikipedia.org/wiki/Single-electron_transistor

    Schematic diagram of a single-electron transistor Left to right: energy levels of source, island and drain in a single-electron transistor for the blocking state (upper part) and transmitting state (lower part). The SET has, like the FET, three electrodes: source, drain, and a gate. The main technological difference between the transistor types ...

  5. 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.

  6. Unijunction transistor - Wikipedia

    en.wikipedia.org/wiki/Unijunction_transistor

    The schematic diagram symbol for a unijunction transistor represents the emitter lead with an arrow, showing the direction of conventional current when the emitter-base junction is conducting a current. A complementary UJT uses a p-type base and an n-type emitter, and operates the same as the n-type base device but with all voltage polarities ...

  7. Common gate - Wikipedia

    en.wikipedia.org/wiki/Common_gate

    In electronics, a common-gate amplifier is one of three basic single-stage field-effect transistor (FET) amplifier topologies, typically used as a current buffer or voltage amplifier. In this circuit, the source terminal of the transistor serves as the input, the drain is the output, and the gate is connected to some DC biasing voltage (i.e. an ...

  8. Darlington transistor - Wikipedia

    en.wikipedia.org/wiki/Darlington_transistor

    Darlington Transistor (NPN-type) In electronics, a Darlington configuration (commonly called as a Darlington pair) is a circuit consisting of two bipolar transistors with the emitter of one transistor connected to the base of the other, such that the current amplified by the first transistor is amplified further by the second one. [1]

  9. Transistor–transistor logic - Wikipedia

    en.wikipedia.org/wiki/Transistortransistor_logic

    To solve the problem with the high output resistance of the simple output stage the second schematic adds to this a "totem-pole" ("push–pull") output. It consists of the two n-p-n transistors V 3 and V 4, the "lifting" diode V 5 and the current-limiting resistor R 3 (see the figure on the right).