Definitions for Diodeˈdaɪ oʊd

This page provides all possible meanings and translations of the word Diode

Princeton's WordNetRate this definition:(0.00 / 0 votes)

  1. diode, rectifying tube, rectifying valve(noun)

    a thermionic tube having two electrodes; used as a rectifier

  2. diode, semiconductor diode, junction rectifier, crystal rectifier(noun)

    a semiconductor that consists of a p-n junction

WiktionaryRate this definition:(0.00 / 0 votes)

  1. diode(Noun)

    An electronic device that allows current to flow in one direction only; a valve.

  2. diode(Noun)

    A two-terminal semiconductor device, having a p-n junction, used chiefly as a rectifier.

  3. Origin: Learned formation, coined by William Eccles in 1919, after Greek δίοδος.

FreebaseRate this definition:(0.00 / 0 votes)

  1. Diode

    In electronics, a diode is a two-terminal electronic component with asymmetric conductance, it has low resistance to current flow in one direction, and high resistance in the other. A semiconductor diode, the most common type today, is a crystalline piece of semiconductor material with a p–n junction connected to two electrical terminals. A vacuum tube diode is a vacuum tube with two electrodes, a plate and a heated cathode. The most common function of a diode is to allow an electric current to pass in one direction, while blocking current in the opposite direction. Thus, the diode can be viewed as an electronic version of a check valve. This unidirectional behavior is called rectification, and is used to convert alternating current to direct current, including extraction of modulation from radio signals in radio receivers—these diodes are forms of rectifiers. However, diodes can have more complicated behavior than this simple on–off action. Semiconductor diodes begin conducting electricity only if a certain threshold voltage or cut-in voltage is present in the forward direction. The voltage drop across a forward-biased diode varies only a little with the current, and is a function of temperature; this effect can be used as a temperature sensor or voltage reference.


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