A two-terminal semiconductor (rectifying) device that exhibits a non-linear current-voltage characteristic The diode's function is to allow current in one direction and to block current in the opposite direction Also see rectifier
Simple semiconductor element, comparable to a valve The ideal diode is blocking electric current in one direction and conducting it in the other The real diode causes a voltage drop and energy loss in the forward direction, therefore power electronics sometimes use active diodes
Two-element electron tube, which will allow more electron flow in one direction in a circuit than in the other direction; tube which serves as a rectifier
Rectifier An electronic device with two wires or terminals A rectifier allows electrical current to flow through in only one direction and is used for converting alternating current into direct current Rectifiers were important for use in radios, which required direct current to power the amplifiers driving speakers or headphones
a piece of electrical equipment that makes an electrical current flow in one direction (di- + hodos ). Electronic device that has two electrodes (anode and cathode) and that allows current to flow in only one direction, resisting current flow in the other. An applied voltage can cause electrons to flow in only one direction, from the cathode to the anode, and then back to the cathode through an external circuit. Diodes are used especially as rectifiers which change alternating current into direct current and to vary the amplitude of a signal in proportion to the voltage in a circuit, as in a radio or television receiver. The most familiar diodes are vacuum tubes and semiconductor diodes. Semiconductor diodes, the simplest of semiconductor devices, consist of two electrodes and a sandwich of two dissimilar semiconducting substances (a p-n junction). Such diodes form the basis for more complex semiconductor devices (including transistors) used in computers and other electronic equipment. Semiconductor diodes include light-emitting diodes and laser diodes; the latter emit laser light, useful for telecommunications via fibre optics and for reading compact discs
A two-terminal semiconductor device that will allow current to flow through it in only one direction With the proper voltage polarity across the device, it will act as a conductor When the voltage polarity is reversed, the device will act as a nonconductor, allowing no current to flow
the diode is the simplest and most fundamental non-linear circuit element It is a two terminal device which only allows current to flow in one direction