power adapter

Also found in: Dictionary, Thesaurus, Medical, Legal, Financial.

power adapter

A power supply for electronic devices. Also called an "AC adapter" or "charger," power adapters plug into a wall outlet and convert AC to a single DC voltage. Computers use multiple DC voltages, and the power adapter is the external part of the power supply for a laptop. The additional DC voltages are created by internal circuits. Desktop computer power supplies are in one internal unit, which converts AC to all DC voltages.

Power adapters also exist for other purposes; for example, to output a different AC voltage, rather than DC. See transformer, power supply, power distribution unit, wall wart, power strip and USB charger.

The Laptop Power "Brick"
The weight of a laptop's external AC adapter is hardly ever published in the specs, but it adds bulk and poundage in the briefcase.

The "Wall Wart"
The ubiquitous black adapter with its own AC plug often overlaps the adjacent socket, unless a "wall wart-aware" power strip like this one is used.
References in periodicals archive ?
The counterfeit Model A1265 power adapters are marked "Designed by WHP in California," the power adapter that is authorized to bear the UL mark is marked "Designed by Apple in California.
The Global Mobile Phone Power Adapter Industry Report 2014 is a professional and in-depth study on the current state of the mobile phone adapter industry.
2-Spares of Power over Ethernet (PoE) Adapter (10/100/1000 Mbps) with IN power adapter, quantity of 100 units (applicable for 7731, 7982, 7962, 7942, 7363, 7343, 7341,
Apple said they will exchange every affected power adapter for a new one, free of charge.
The power adapter also includes a data port provided at a surface of the housing.
Between the BIOS update and the new power adapter, the throttling issues are resolved according to Dell.
Apple advises iPhone 3G owners to charge their handsets by plugging them into computers or with a standard-sized Apple power adapter until the potentially problematic part is replaced.
The company recently announced that it had won Lenovo's business for its next-generation, cost-optimized ChargeSource "slim and light" universal power adapter.
2 million in sales of universal power adapters for portable computers to Targus resulting from Targus' transition to a new management team, whose revised strategy includes better management of returned product and an effort to reduce inventory held in their supply chain pipeline.
a leading provider of innovative portable power and computing solutions, announced today that it is now shipping its universal power adapters for mobile electronic devices to Sears.
Worldwide Computer Products News-17 October 2008-Comarco to supply power adapters for Lenovo notebooks(C)1995-2008 M2 COMMUNICATIONS LTD http://www.
Its MagSafe Power Adapter also charges the battery by magnetically coupling the power cord to the computer.