power supply unit


Also found in: Acronyms.

power supply unit

(hardware)
(PSU) An electronic module that converts high voltage (110 or 240 VAC) alternating current mains electricity into smoothed direct current at the various differnt voltages required by the motherboard; internal peripheral devices, cheifly storage devices: hard disks, CD or DVD, floppy disks and external connections such as USB. A PSU needs a high enough power output rating to supply all the devices connected to it and should output as little as possible electrical noise, both on the output wires and as electromagnetic radiation.

See also uninterruptable power supply.
References in periodicals archive ?
Power supply capacity varies according to power supply unit conversion efficiency, amount of remaining hydrogen and power consumption.
HONG KONG, Aug 23, 2016 - (ACN Newswire) - Ten Pao Group Holdings Limited ("Ten Pao" or "the Group" ; stock code: 1979), a leading one-stop manufacturer of switching power supply units in China, has announced its unaudited interim results for the six months ended 30 June 2016 ("the Period").
These C-band and Ku-band power boosters include control and protection functions and consist of three major subsystems: the RF amplifier, a power supply unit and a cooling system.
VIP |R~ Dual-Trak |TM~, the induction power supply unit that runs two furnaces simultaneously, was introduced just two years ago.
has developed a self-diagnostic technology to determine when a power supply unit needs to be replaced.
The Group also plans to pursue strategic expansion opportunities overseas, in order to enhance its position as one of the major switching power supply unit manufacturers in the PRC.
Amplicon said that the EB4 consists of a PCIe x8 or ExpressCard34 host card, a cable, a chassis with four PCIe x16 full length expansion slots and a built-in power supply unit.
The new laser series offers control software with the highest levels of laser control, monitoring key parameters in the head and power supply unit, making all data accessible to the system builder.
The R65 is a 65-watt single output power supply unit in the industry standard 3 in.
power supply unit, is valued highly by customers not only because it improves power conversion efficiency, but also because it reduces power consumption in the standby mode and enables smaller size.
Maintenance and repair of the fire alarm address and analog device, maintenance and repair of the control panel and control, maintenance and repair of the display unit, maintenance and repair of the uninterruptible power supply unit, maintenance and repair of the fire smoke detector opto-electronic address-analogue
The switching power supply unit manufacturing industry in the PRC has registered healthy growth and a positive industry prospect.