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	+12V/-12V Power supply unit (Site not responding. Last check: 2007-11-05)
		The power supply which I introduce here is the one to have used the unit which has the two power supplies of 12 V in the one unit.
		The power supply unit is using the ready-made.
		The positive power supply is the 1.2 amperes and the negative power supply is the 0.9 amperes.
	www.interq.or.jp /japan/se-inoue/e_ckt19.htm (234 words)

	Power supply - Wikipedia, the free encyclopedia
		A power supply (sometimes known as a power supply unit or PSU) is a device or system that supplies electrical or other types of energy to an output load or group of loads.
		Constraints that commonly affect power supplies are the amount of power they can supply, how long they can supply it for without needing some kind of refueling or recharging, how stable their output voltage or current is under varying load conditions, and whether they provide continuous power or pulses.
		A power supply (or in some cases just a transformer) that is built into the top of a plug is known as a wall wart, power brick, plug-in adapter or just power adapter.
	en.wikipedia.org /wiki/Power_supply_unit (1170 words)

	Power Supply Unit (PSU) Basics including ATX Power Supply Pinouts
		Power Supplies contain dangerous voltages and should only be opened by experienced and qualified engineers, there are no user servicable parts inside.
		Power supplies are quoted as having a certain power output specified in Watts, a standard power supply would typically be able to deliver around 350 Watts.
		A power supply can be easily changed and are generally not expensive, so if one fails (which is far from uncommon) then replacement is usually the most economic solution.
	www.helpwithpcs.com /courses/power-supply-basics-inc-pinouts.htm (403 words)

	Emergency Power Supply Unit (Site not responding. Last check: 2007-11-05)
		In the case of loss of mains supply, the E-Module supplies power to the connected d.c.
		LED indicators built into the unit show whether the mains supply (yellow LED) or the emergency supply (red LED) is in use.
		Emergency power supply unit built into a universal compatible plastic housing, designed for incorporation in a control panel or direct mounting onto the corresponding GEMÜ actuator.
	www.gemu.com /emergency_power_supply_unit.htm (141 words)

	Power Supply Unit (Site not responding. Last check: 2007-11-05)
		As the name applies the power supply unit provides the components within a computer with electrical power.
		A power supply unit is housed within the computer case and are usually sold with the case.
		One of the main functions of the power supply unit is to convert AC to DC electrical current and it also helps avoid power voltage surges and spikes.
	www.internet-guide.co.uk /power-supply.html (74 words)

	Power Supply Unit - OCAU.Wiki
		The PSU, or Power Supply Unit, is responsible for converting the (AC) mains power received from the wall socket into various DC voltages used by the components of a PC.
		Thermaltake: Their PSU's are of reasonable to good quality, but their lower end is deceptively labelled (eg xp480 400w model is rated for 250w by the oem), and is based on the obselete atx1.3 standard with a small 12V rail.
		Power supplies have 3 Main rails, the +3.3v, +5v and +12v rails.
	www.overclockers.com.au /wiki/Power_Supply_Unit (4913 words)

	DigitalReviews.net - Reviewing Your Digital World :: Enermax Liberty 400W Power Supply Unit
		One of the power connectors for the motherboard was unable to fit because the motherboard was crowded near the power supply connector.
		To install this power supply, all you need to do is place the power supply in the correct place in your computer and fasten it in with the provided screws.
		A power supply may not be the most exciting compoent in your computer, but it performs one of the more critical functions in your system.
	www.digitalreviews.net /reviews/200511/enermax-liberty-400W-PSU.html (1034 words)

	X-bit labs - Articles - X-bit Presents: Power Supply Unit Testing Methodology
		If you know how switch-mode power supplies are built and how they work, you can skip the first two sections of this article to get right to the description of our test equipment and test methods.
		As you know, an electrical power supply is a device that solves the problems of adjusting, controlling or stabilizing the input electrical power; its acts as an interface between a power source and a load.
		The voltage in the power grid (220 volts) is stepped down by the transformer T1 to the necessary level and is then rectified by the diode bridge D1.
	www.xbitlabs.com /articles/other/display/psu-methodology.html (887 words)

	What is power supply? - A Word Definition From the Webopedia Computer Dictionary (Site not responding. Last check: 2007-11-05)
		The power supply then pulls the required amount of electricity and converts the AC current to DC current.
		Not all power supplies, however, do an adequate voltage-regulation job, so a computer is always susceptible to large voltage fluctuations.
		Interact Power: Power Conditioners - Manufactures COTS Rack Mount AC and DC power distribution equipment, specializing in ruggedized custom PDU?s with single phase or three phase power.
	www.webopedia.com /TERM/p/power_supply.html (466 words)

	Power Supply Unit (PSU) - PC Hardware Help
		A quality power supply is essential to a PC, especially for those who overclock or have numerous components and multiple hard drives installed.
		A power supply is the small, metal box usually located at the back of the PC that converts the AC current from your home to the DC current needed by the PC.
		The power supply is plugged into an eletrical outlet and then steps down the 110 volts (or 220) into the appropriate voltage and supplies it to the components in a PC.
	www.pchardwarehelp.com /Power-Supply.php (502 words)

	X-bit labs - Articles - FSP VGA Power: Power Supply Unit for Your Graphics Card
		On the other hand, there’s not much sense in powering the peripherals from a separate PSU because their share in the overall consumption is too small compared with the combined consumption of the graphics card and processor.
		Both the PSUs should be modified so that the regulation in the former was bound to the +12V voltage and in the latter to the +5V (ATX units usually regulate both these voltages simultaneously, basing on some average value).
		The PSUs can be left as they are, but the modification is advisable — the output voltage may turn to be not very stable because only one of the PSU’s power rails is under load.
	www.xbitlabs.com /articles/other/display/fsp-vga-power.html (763 words)

	Quiet PC USA - Ultra-Quiet Computer Power Supply Unit (PSU) Installation Instructions (Site not responding. Last check: 2007-11-05)
		If your processor fan is powered from a drive connector coming from the power supply unit (rather than directly from some pins on the motherboard), then you should unplug the processor fan connector at this point too (not shown).
		The old power supply can now be carefully removed from the case and the new Ultra-Quiet one installed.
		Instead, a low-voltage power switch is connected to the motherboard and when pressed, the motherboard signals to the power supply unit through the block connector that it should begin to supply power.
	www.quietpcusa.com /psuinstall.html (806 words)

	» Computer Technicians 103: Knowing your power (supply) - Technibble - A Resource for Computer Repair Technicians ...
		Picking a decent power supply isn’t much of a science; however, knowing what voltages run through your computer is, and knowing it will come in handy once you start actually repairing, as it might indicate what exactly went wrong with the powersupply.
		A power supply usually gives out tens of amperes on +5V and +3.3V rails, since most of the computer is power-hungry circuitry.
		The power supply output can be measured and calculated, but it involves several measurements of both voltage and current and a foot-long calculation - we’ll leave that as your homework.
	www.technibble.com /computer-technicians-103-knowing-your-power-supply (936 words)

	Review: Topower 686P6 Power Supply Unit
		Yes, this PSU does need to be as big as it is. That substantial extra heat sink area also ought to let the 686P6 keep itself cool without needing to blow a noisy gale.
		Cheap drives and expansion cards may be fussier about their input power than more expensive units, and a really crummy (or just overloaded) power supply certainly can cause a weird and wonderful variety of bizarre symptoms.
		Resistance in the power wire going to a gadget will cause a "voltage drop"; the gadget won't see all of the volts the power supply's trying to send to it.
	www.dansdata.com /top686p6.htm (3226 words)

	Power Supply Unit - Hydrogenaudio Forums
		Major requirement is that you buy a quality, heavy duty power supply and not a cheap 500w supply, for example, which will probably give you more problems than a quality 300w supply.
		A lot of people think that super-beefy power supplies are a necessity, when in reality this is not true - all that is really needed is adequate amperage on the +3,5and12V Rails.
		Check out the PSU Calculator, which will give you a pretty realistic number so far as your power consumption is concerned.
	www.hydrogenaudio.org /forums/index.php?showtopic=11387 (2261 words)

	PC power supply unit - Deccan Herald (Site not responding. Last check: 2007-11-05)
		The PSU is a metal box connected to the rear corner of the frame (which also holds the mother board and the various drives).
		The fluctuations in the AC power supply to the PSU of the computer may damage the computer components and corrupt the software.
		Note that the battery must be fully charged for the UPS to supply power for the maximum period of time.
	www.deccanherald.com /deccanherald/mar302005/cyber3.asp (642 words)

	Getting the Right Power: 15 PC Power Supply Units \| Tom's Hardware (Site not responding. Last check: 2007-11-05)
		But often it turns out that the power supply unit is simply no longer enough for the upgrade and the associated power requirements.
		A capable, smoothly operating power supply unit is thus sorely needed, whether to satisfy the increased demand for processing power from an upgrade or because a deficient power supply unit needs to be replaced with a new one.
		First of all, the value of a stably operating power supply unit only lasts as long as it is guaranteed to go easy on the ears while doing its work.
	www.tomshardware.com /howto/20040122/power_supplies-02.html (504 words)

	Building design uninterruptible power supplies ups system computer power supply unit (Site not responding. Last check: 2007-11-05)
		Power Systems Warehouse is a specialist supplier of Uninterruptible Power Supplies, Standby Power Supplies and Intelligent Static Transfer Modules with power outputs from 50 Watts to 4000k Watts.
		The uninterruptible and stand by power systems, inverters and intelligent static transfer modules are state of the art using the latest technology.
		Power Systems Warehouse Ltd is a leading specialist supplier of Power Protection Systems including the maintenance, installation and repair of UPS and Stand-by Generator Systems.
	www.buildingdesign.co.uk /arch-3/power-systems-warehouse/power-supply.htm (778 words)

	Computer Power Supply- Schematics, Reviews, Repair Guides (Site not responding. Last check: 2007-11-05)
		unit (PSU) is the device that converts the input AC voltage to the DC voltages needed by the personal computer.
		Power supplies for computers utilize switching mode technology.
		Output power of a typical power supply for personal computers is 180 to 450 W. PSU over 450W are usually used in servers or industrial PCs.
	www.smps.us /computer-power-supply.html (226 words)

	PROVANTAGE: power supply units page at Provantage (Site not responding. Last check: 2007-11-05)
		Modular system Includes one Controller Card, one AC power supply and 15 option module slots for Atlas 800 Series modules or an additional 890 power supply.
		Power supply unit for the auxilliary power shelf - Product Features - One power supply unit for the Cisco Catalyst power shelf.
		Neo HE power supplies consume up to 20% less energy than typical power supplies and generate less heat in your system.
	www.provantage.com /power-supply-units-page.htm (998 words)

	Logisys Computer Pitbull 500W Power Supply Unit -= www.bigbruin.com =-
		Just recently I had a 500W power supply that I had been using for the last three years give up and die on me. Being stuck, I went to an old back-up power supply, a 350W Enermax.
		The unit I received is the silver version, and it is also available in a blue and fl mirror finish.
		This power supply offers two side windows that allow you to see the inside of the power supply without removing the cover, and allows some of the light from the LED fan to shine in.
	www.bigbruin.com /reviews/logisyspitbull (1191 words)

	stonewood audio SA-CPS2 power supply unit
		The SA-CPS2 Power Supply Unit can power single or dual channel intercom systems for communication with either one or both channels, facilitating up to sixteen outstations.
		The SA-CPS2 can be either used as a standalone power supply, termination network or line feed for small systems or can be added to a system as an additional power supply, enabling the system to cope with a greater number of outstations.
		Connection is simply made via a junction box to the existing line on pin 2 (power) and pin 1 (ground).Â Two indicator LEDs on the front panel monitor the power supply output status.
	www.stonewood.co.uk /stonewood_audio_SA-CPS2_power_supply_unit.aspx?navid=142 (139 words)

	X-bit labs - Articles - Shuttle ST61G4 Review: SFF PC on ATI RADEON 9100 IGP Chipset (page 6)
		The power supply unit is an important component of each barebone system as it must combine both: small size and high wattage.
		Shuttle used a small-size PSU from a noname manufacturer for its ST61G4 (the PSU is marked as if made by Shuttle itself) with 250W power and Power Factor Correction support.
		The PSU of the Shuttle ST61G4 is provided with a 20-pin (main) and 4-pin (12V) power cables for the mainboard as well as two 4-pin 12V, two 5V (Molex) and even one SerialATA power connector for HDDs.
	www.xbitlabs.com /articles/mobile/display/shuttle-st61g4_6.html (745 words)

	What is power supply? - A Word Definition From the Webopedia Computer Dictionary (Site not responding. Last check: 2007-11-05)
		Power supplies are rated in terms of the number of watts they generate.
		The more powerful the computer, the more watts it can provide to components.
		A reference guide looking at the power systems of the PC from the inside and out.
	www.webopedia.com /TERM/P/power_supply.html (466 words)

	3DXtreme - Taking Hardware To The Xtreme...
		With this particular unit we could adjust the 3.3volt rail and 12/5 volt rails however it required removing the PSU from the case, opening it up and making small adjustments.
		OCZ has taken this idea quite a bit further by including colored LEDs on the back of the unit that display the status of the power rails and also including over voltage protection so having this kind of power is not the risk it once was.
		The PowerStream PSU family comes in 420W, 470W and 520W configurations; they are the ideal solution to your computer power needs.
	www.3dxtreme.net /index.php?id=oczpowerstream4701 (560 words)

	CNC Power Supply Section. CNC Power Supplies for Fanuc and GE.
		CNC offers a variety of services for power supply units for Fanuc and GE.
		Power Supply unit repair, exchange, surplus for outright sale and For Fanuc system power supplies and input units from nearly every Fanuc control that is around in machine tools today, and Fanuc Alpha PSM or power supply modules for the Alpha drive systems.
		Additional to this is our continued building of replacement psu's for Fanuc system 3 and 6 power supplies and GE 200 power supplies.
	www.cnc-electronics.com /power-supply.html (275 words)

	Power Supply Unit - Neowin Forums (Site not responding. Last check: 2007-11-05)
		A $30 power supply claiming to produce 600W may not necessary be any better than another unit that's $90 from Antec that claims 480W.
		Therefore, $50 is nothing in the power supply sector.
		It's apparent that you've experienced cheap power supplies, but the consequences you have not yet experienced.
	www.neowin.net /forum/index.php?showtopic=465089&view=getnewpost (1010 words)

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