power supply

(redirected from Power brick)

power supply

[′pau̇·ər sə‚plī]
(electronics)
A source of electrical energy, such as a battery or power line, employed to furnish the tubes and semiconductor devices of an electronic circuit with the proper electric voltages and currents for their operation. Also known as electronic power supply.

power supply

power supply

A system that converts AC current from the wall outlet into the DC currents required by electronic circuits. A computer power supply converts AC into multiple DC voltages. For example, 12 volts is commonly used for drives, while 3.3v and 5v are used by the chips and other motherboard components.

Switching Power Supplies
Power supplies known as "switching" power supplies are commonly used. Their name is derived from the type of circuit used to change the voltage. For more details, see transformer. See power adapter.


Typical Voltages
This monitor displays the typical three voltages generated by a PC power supply.







One Size Does Not Fit All
Like everything else in our high-tech world, power supplies come in myriad sizes and shapes; witness this table full of different units from Sparkle Power Inc. (www.sparklepower.com).







External "Bricks"
Laptops use an external power supply, called a "power adapter" or "power brick." It converts AC to a single DC voltage that goes to the laptop's internal power supply, which generates all other required voltages. External adapters are used to reduce the size and weight of the laptop, yet they typically ride along in the laptop case, adding back the weight after all.
References in periodicals archive ?
A 6" x 6" x 1" Accessory Pouch for protecting cables, the AC power brick and adapters is also included.
User-friendly cable management bars and power brick wraps enable easy cable routing and changes.
Using DesignSpark Mechanical 3D modeling software, the winning team, Team Maxwell, produced a Power Brick, dubbed the "Seebrick", which uses the Seebeck effect to generate electric power.
Such capabilities would eliminate the need to carry power brick and cables for displays and data transfers.
The 20is therefore feature a rechargeable power brick at the base of the lead which also houses the on/off switch, a MICROUSB port (for charging) and status lights for Aware Mode, Charge and Power.
Meanwhile, Sony President of Worldwide Studios, Shuhei Yoshida, has cleared doubt if it will use a power brick by tweeting that power supply will be placed within the console.
Additionally a reviewer on Newegg noted that the power brick is one of the largest they ve ever seen and doesn t pack away well in a typical laptop bag.
Most notebooks use an external AC adapter--sometimes called a power brick because it's usually shaped like a small brick.
We're also working on a 200-watt unit the size of my fist," says Joseph Maceda, vice president of H Power, calling it "the Power Brick.
3 pounds -- plus nearly a pound for its power brick -- while the Dell, HP and the Gateway laptops exceeded the 5.
Light the LED bricks by connecting them to a Power Brick - you can design pathways with as many Bridge Bricks as you need for ultimate flexibility.