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  2. Diode–transistor logic - Wikipedia

    en.wikipedia.org/wiki/Diodetransistor_logic

    Diodetransistor logic (DTL) is a class of digital circuits that is the direct ancestor of transistortransistor logic. It is called so because the logic gating functions AND and OR are performed by diode logic , while logical inversion (NOT) and amplification (providing signal restoration) is performed by a transistor (in contrast with ...

  3. Solid-state electronics - Wikipedia

    en.wikipedia.org/wiki/Solid-state_electronics

    An integrated circuit (IC) on a printed circuit board. This is called a solid-state circuit because all of the electrical activity in the circuit occurs within solid materials. Solid-state electronics are semiconductor electronics: electronic equipment that use semiconductor devices such as transistors, diodes and integrated circuits (ICs).

  4. Diode logic - Wikipedia

    en.wikipedia.org/wiki/Diode_logic

    Consequently, tunnel diode logic circuits required a means to reset the diode after each logical operation. However, a simple tunnel diode gate offered little isolation between inputs and outputs and had low fan in and fan out. More complex gates, with additional tunnel diodes and bias power supplies, overcame some of these limitations. [7]

  5. Bipolar junction transistor - Wikipedia

    en.wikipedia.org/wiki/Bipolar_junction_transistor

    In analog circuit design, the current-control view is sometimes used because it is approximately linear. That is, the collector current is approximately times the base current. Some basic circuits can be designed by assuming that the base–emitter voltage is approximately constant and that collector current is β times the base current ...

  6. Diode-connected transistor - Wikipedia

    en.wikipedia.org/wiki/Diode-connected_transistor

    A diode-connected transistor is a method of creating a two-terminal rectifying device (a diode) out of a three-terminal transistor. A characteristic of diode-connected transistors is that they are always in the saturation region for metal–oxide–semiconductor field-effect transistors (MOSFETs) and junction-gate field-effect transistors ...

  7. Transistor diode model - Wikipedia

    en.wikipedia.org/wiki/Transistor_diode_model

    In a diode model two diodes are connected back-to-back to make a PNP or NPN bipolar junction transistor (BJT) equivalent. This model is theoretical and qualitative. This model is theoretical and qualitative.

  8. Transistor - Wikipedia

    en.wikipedia.org/wiki/Transistor

    The top image in this section represents a typical bipolar transistor in a circuit. A charge flows between emitter and collector terminals depending on the current in the base. Because the base and emitter connections behave like a semiconductor diode, a voltage drop develops between them.

  9. Transistor–transistor logic - Wikipedia

    en.wikipedia.org/wiki/Transistortransistor_logic

    Transistor V 3 turns "off" and it does not impact on the output. In the middle of the transition, the resistor R 3 limits the current flowing directly through the series connected transistor V 3, diode V 5 and transistor V 4 that are all conducting. It also limits the output current in the case of output logical "1" and short connection to the ...

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