Electrical bus

An electrical bus (sometimes spelled incorrectly as "buss") is a physical electrical interface where many devices share the same electric connection. This allows signals to be transferred between devices (allowing information or power to be shared). A bus often takes the form of an array of wires that terminate at a connector which allows a device to be plugged into the bus.

* Buses are used for connecting components of a computer: a common example is the PCI bus in PCs. See computer bus.
* Buses are used for communicating between computers (often microprocessors). See computer bus.
* Buses are used for distribution of electrical power to components of a system. The (usually) thick conductors used are called busbars. In an electrical laboratory, for example, a bare bus-bar will sometimes line the wall, to be used by the engineers and technicians for its high electric current-carrying capacity, which allows a convenient approximation to "zero voltage", or "ground" in the US, and "earth" in the UK.
* In analysis of an electric power network a "bus" is any node of the single-line diagram at which voltage, current, power flow, or other quantities are to be evaluated. These may or may not correspond with heavy electrical conductors at a substation.
* In pro audio, "bus" refers to a place in the audio signal chain where one can hear a mix of different audio signals—usually at the output of a mixer, or as a separate sub-mix within the mixer (for example all of the microphones used to capture a drum kit). Sometimes it is used interchangeably with the noun "mix".

See also

* distributed generation
* Switched-mode power supply; SMPS
* isolated-phase bus.
* Busbar

Wikimedia Foundation. 2010.

Look at other dictionaries:

  • electrical bus — A distribution point in an aircraft electrical system to which the battery and the generator(s) are connected and from which the electrical loads derive their power. See also battery bus. Electrical busbar with distribution points …   Aviation dictionary

  • Bus (computing) — 4 PCI Express bus card slots (from top to bottom: x4, x16, x1 and x16), compared to a 32 bit conventional PCI bus card slot (very bottom) In computer architecture, a bus is a subsystem that transfers data between components inside a computer, or… …   Wikipedia

  • Electrical power industry — The electrical power industry provides the production and delivery of electrical power (electrical energy), often known as power, or electricity, in sufficient quantities to areas that need electricity through a grid. Many households and… …   Wikipedia

  • Bus (disambiguation) — Besides designating the vehicle, bus may refer to:Abbreviation* An abbreviation for the Bank of the United States * An abbreviation for a business route of a highwayPeople* Jerome Bettis, a retired American football player nicknamed The Bus *… …   Wikipedia

  • bus — 1. noun /bʌs/ a) A motor vehicle for transporting large numbers of people along roads. b) An electrical conductor serving as a common connection for two or more circuits …   Wiktionary

  • Electrical wiring — in general refers to insulated conductors used to carry electricity, and associated devices. This article describes general aspects of electrical wiring as used to provide power in buildings and structures, commonly referred to as building wiring …   Wikipedia

  • Electrical termination — of a signal involves providing a terminator at the end of a wire or cable to prevent an RF signal from being reflected back from the end, causing interference. The terminator is placed at the end of a transmission line or daisy chain bus (such as …   Wikipedia

  • Electrical conduit — risers, seen inside fire resistance rated shaft, as seen entering bottom of a firestop. The firestop is made of firestop mortar on top, rockwool on the bottom. Raceways are used to protect cables from damage …   Wikipedia

  • Bus rapid transit — ( BRT ) is a broad term given to a variety of transportation systems that, through improvements to infrastructure, vehicles and scheduling, attempt to use buses to provide a service that is of a higher quality than an ordinary bus line. Each BRT… …   Wikipedia

  • bus — or busbar [bus] n. pl. buses or busses [< (OMNI)BUS] 1. a large, long motor vehicle designed to carry many passengers, usually along a regular route; omnibus 2. Slang an automobile 3. Elec. a heavy copper bar, strap, or other similar conductor …   English World dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”