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  Encyclopedia of Keywords > Energy > Electricity > Electronics > Semiconductors > Diodes   Michael Charnine

Keywords and Sections
CATS WHISKER DIODES
SINGLE DIODE
SUPERLUMINESCENT DIODES
CURRENT-REGULATING DIODES
JFETS
NORMAL DIODES
SEMICONDUCTOR MATERIAL
TRANSFORMER
INJECTION LASER DIODES
COMMERCIAL LASER DIODES
SCHOTTKY BARRIER DIODES
P-CONTACTS
PHOTO DIODES
TUBE DIODES
THERMIONIC DIODES
LASER DIODE MODULES
SHOCKLEY DIODES
SIC SCHOTTKY DIODES
CONVENTIONAL DIODES
VACUUM TUBE DIODES
SILICON DIODES
RECTIFIER DIODES
ZENER DIODES
SEMICONDUCTOR DIODES
LIGHT EMITTING DIODES
SEMICONDUCTOR LASERS
LIGHT-EMITTING DIODES
OXIDE
FILTERS
LENSES
PHOTOVOLTAIC CELLS
CRYSTALS
DIFFERENT TYPES
EXAMPLES
SCHOTTKY DIODE
METAL
SIMILARLY
VALUE
LIFETIME
MATERIALS
CONSTRUCTION
ADVANTAGE
TYPICAL
FINDING
SPECIALIZED
FUNCTION
Review of Short Phrases and Links

    This Review contains major "Diodes"- related terms, short phrases and links grouped together in the form of Encyclopedia article.

Definitions

  1. Diodes are used as temperature and light sensors and light emitters (LEDs). (Web site)
  2. Diodes are electrical valves that allow electrical current to flow in only one direction, just as a one-way valve might in a water pipe. (Web site)
  3. Diodes are usually referred to as D for diode on PCBs. (Web site)
  4. Diodes are also manufactured to handle a certain amount of power. (Web site)
  5. Diodes are the electrical version of a valve and early diodes were actually called valves. (Web site)

Cat???s Whisker Diodes

  1. Cat’s whisker diodes were also called crystal diodes and found application in crystal radio receivers. (Web site)

Single Diode

  1. Half-wave rectification can be achieved with a single diode in a one phase supply, or with three diodes in a three-phase supply. (Web site)

Superluminescent Diodes

  1. Light with broad bandwidths can be generated by using superluminescent diodes (superbright LEDs) or lasers with extremely short pulses (femtosecond lasers). (Web site)
  2. Superluminescent diodes are similar to laser diodes in that they utilize an optical waveguide, but optical feedback is suppressed. (Web site)

Current-Regulating Diodes

  1. Also called CLDs, constant-current diodes, diode-connected transistors, or current-regulating diodes. (Web site)

Jfets

  1. Analog Circuits: Equivalent circuits (large and small-signal) of diodes, BJTs, JFETs, and MOSFETs.

Normal Diodes

  1. They are also used in conjunction with normal diodes and transistors, where their lower junction voltage is used for circuit protection (among other things). (Web site)
  2. Schottky diodes are majority carrier devices and so do not suffer from minority carrier storage problems that slow down most normal diodes. (Web site)

Semiconductor Material

  1. In the above diagrams, contact between the metal wires and the semiconductor material also creates metal-semiconductor junctions called Schottky diodes.

Transformer

  1. Full-wave rectifier using a transformer and 2 diodes. (Web site)
  2. For single-phase AC, if the transformer is center-tapped, then two diodes back-to-back (i.e. (Web site)

Injection Laser Diodes

  1. The former devices are sometimes referred to as injection laser diodes to distinguish them from optically pumped laser diodes. (Web site)

Commercial Laser Diodes

  1. Almost all commercial laser diodes since the 1990s have been SCH quantum well diodes. (Web site)

Schottky Barrier Diodes

  1. The metal semiconductor diodes later built on the basis of this theory are called Schottky barrier diodes.

P-Contacts

  1. A multiplicity of diodes is provided by means of the semiconductor material and by segmented n-contacts and p-contacts. (Web site)

Photo Diodes

  1. Optical isolators use LEDs and Photo Diodes to isolate each line in a serial cable including the signal ground.
  2. Photo diodes can be used as solar cells. (Web site)

Tube Diodes

  1. Modern applications of tube diodes are generally limited to rectifiers in high-end audio amplifiers and other specialized high-voltage circuits. (Web site)

Thermionic Diodes

  1. This property is approximated in junction and thermionic diodes. (Web site)

Laser Diode Modules

  1. See the chapter: Laser and Parts Sources for suppliers of both raw laser diodes and laser diode modules. (Web site)

Shockley Diodes

  1. Like all thyristors, Shockley diodes tend to stay on once they've been turned on (latched), and stay off once they've been turned off. (Web site)

Sic Schottky Diodes

  1. SiC Schottky diodes have about 40 times lower reverse leakage current compared to silicon schottky diodes and are available in 300V and 600V variants. (Web site)

Conventional Diodes

  1. When V F is reached, the current increases very rapidly (as in conventional diodes).

Vacuum Tube Diodes

  1. Before the advent of semiconductors, vacuum tube diodes were used.
  2. Like light bulbs, vacuum tube diodes have a filament through which current is passed, heating the filament. (Web site)

Silicon Diodes

  1. We previously mentioned that the reverse leakage current of under a µA for silicon diodes was due to conduction of the intrinsic semiconductor. (Web site)
  2. Silicon diodes are typically available with reverse break down ratings of 50, 100, 200, 400, 800 V and higher. (Web site)

Rectifier Diodes

  1. Manufacturers of rectifier diodes, schottky diodes, power diodes, modules, thyristors and bridge rectifiers.
  2. This figure is particularly important for rectifier diodes where significant levels of current may be passed.
  3. Formerly used in rectifier diodes, before silicon.

Zener Diodes

  1. These include Zener diodes, tunnel diodes, varactors, silicon controlled rectifiers (SCR), and TRIACs. (Web site)
  2. Because of this characteristic, Zener diodes are used as voltage regulators. (Web site)

Semiconductor Diodes

  1. Photodiodes are semiconductor diodes that act as photodetectors for not only visible light but also ultraviolet radiation or X-rays if properly configured.
  2. Manufactures automatic test systems and evaluation equipment for semiconductor diodes, laser diodes and LEDs.
  3. In addition to light, mentioned above, semiconductor diodes are sensitive to more energetic radiation. (Web site)

Light Emitting Diodes

  1. LED lighting (LED stands for light emitting diodes) is a semiconductor that emits light when an electric current is applied.
  2. In devices such as laser diodes, light emitting diodes and optical amplifiers, these thermal effects can be catastrophic.

Semiconductor Lasers

  1. The book on "Semiconductor Lasers", first published in 1986, has helped graduate students and engineers in learning the field of laser diodes. (Web site)

Light-Emitting Diodes

  1. In turn, photonic devices include light-emitting diodes (LEDs), photodetectors, photovoltaic devices, and semiconductor lasers. (Web site)
  2. Gallium arsenide is used as a semiconductor, most notably in light-emitting diodes (LEDs).

Oxide

  1. In FIG. 3, zinc sulfide layer 24 is deposited to cover the diodes and oxide layer 22. (Web site)

Filters

  1. Innovative optical devices have emerged from the integration of semiconductor laser diodes, amplifiers and filters with optical waveguide technology.

Lenses

  1. Lenses for light-emitting diodes are of interest for red lamps at the rear of automobiles.

Photovoltaic Cells

  1. Light-emitting diodes and photovoltaic cells, too, cannot be understood without quantum mechanics. (Web site)
  2. Diodes, transistors, and many photovoltaic cells contain semiconductive materials.

Crystals

  1. Early diodes included "cat's whisker" crystals and vacuum tube devices (called thermionic valves in British English).
  2. The first semiconductor diodes, called cat's whisker diodes were made of crystals of minerals such as galena.

Different Types

  1. Diodes. (The p-n junction Diode under reverse and forward bias) Different types of Diodes.
  2. There are different types of laser diodes with varying degrees of this so that some are easier to to design lenses for. (Web site)

Examples

  1. Examples are LEDs, optical couplers, laser diodes, and photo detectors.

Schottky Diode

  1. A Schottky diode uses a metal-semiconductor junction as a Schottky barrier (instead of a semiconductor-semiconductor junction as in conventional diodes). (Web site)

Metal

  1. After removal of the diodes from the evaporation chamber, they were placed (metal on top) on a hot plate and flushed with dry N.sub.2 gas. (Web site)

Similarly

  1. Similarly, diodes are also used in Cockcroft–Walton voltage multipliers to convert AC into higher DC voltages. (Web site)

Value

  1. The value is different for other diode types - Schottky diodes can be as low as 0.2V and light-emitting diodes (LEDs) can be 1.4V or more. (Web site)

Lifetime

  1. This in turn leads to lower losses, lower current requirements, reduced damage, and longer lifetime for the diodes.
  2. Extension of the lifetime of laser diodes is critical to their continued adaptation to a wide variety of applications. (Web site)

Materials

  1. These are similar to tunnel diodes in that they are made of materials such as GaAs or InP that exhibit a region of negative differential resistance. (Web site)

Construction

  1. Point Contact Diode This works the same as the junction semiconductor diodes described above, but its construction is simpler. (Web site)
  2. These work the same as the junction semiconductor diodes described above, but their construction is simpler. (Web site)

Advantage

  1. Diodes optimized to take advantage of this phenomenon are known as photodiodes. (Web site)
  2. This has been used to advantage in narrowing the line width of common laser diodes with an external cavity. (Web site)

Typical

  1. The values given in the table are typical for a current of 1 mA (the same values apply to semiconductor diodes). (Web site)
  2. A drop of 1 V to 1.5 V is typical at full rated current for power diodes. (Web site)
  3. They also have less reverse-current leakage than Schottky diodes (but not as good as other p-n diodes).[ 15][ 16] A typical example is the 1N914. (Web site)

Finding

  1. Since CdSe nanoparticles have a size dependent fluorescence spectrum, they are finding applications in optical devices such as laser diodes.

Specialized

  1. Specialized diodes are used to protect from over-voltages at higher power (see Diode types above). (Web site)
  2. Specialized diodes are used to protect from over-voltages at higher power (see Types below). (Web site)
  3. Although vacuum tube diodes are still used for a few specialized applications, most modern diodes are based on semiconductor p-n junctions. (Web site)

Function

  1. In a simplified ideal situation a semiconductor diode would never function, since it would be composed of several diodes connected back-to-front in series.
  2. For example, an automobile alternator has six diodes inside it to function as a full wave rectifier for battery charge applications. (Web site)

Categories

  1. Energy > Electricity > Electronics > Semiconductors
  2. Electricity > Electronics > Semiconductors > Transistors
  3. Energy > Electricity > Electronics > Lasers
  4. Diode
  5. Germanium

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  Short phrases about "Diodes"
  Originally created: August 01, 2010.
  Links checked: February 27, 2013.
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