Power Supply Unit
![]() |
Power Supply Units – What It's Good To Know Before Replacing
Many of the products that we use in our homes require that you have constant voltage to enable them to will quickly. There are a number of different types of categories that we put power supplies into. These switching power supplies, which are probably the most, and the alternative are linear power supplies, which would be used to for industrial projects. Generally, linear power supplies are used for large main frequency transformers and because of their particular application and usage and they are regarded as not being very efficient in what they do. The alternative can be said for switch mode power supplies because they are generally more efficient, smaller and require a lot less power than linear.
Most of us will be familiar with the AC power as this is generally supplied in a wall socket in our homes. This is alternating current which causes many problems for electronic devices because they need a stable current and lower voltage and this is why we use switch mode power supplies are also called step down power supplies. What they basically do is convert the AC (alternating current) into a pulsating direct voltage. They do this using the circuitry that is built in to the unit itself. This is generally encased in plastic and consists of capactors, filters and resistors to help step down the voltage and make it smoother and efficient.
If you remember not too long ago television's used to use valve technology. This was an inefficient way of powering electronic items because it required a higher voltages and sometimes required step up transformer at rectifiers to do this. In a lot of ways it was a steppingstone to improving general power supply improvements.
Normally you will find that the AC voltage requirements and vary depending on what part of the world you are in. In Europe they use 230v.
It was the supplies and equipment around your home requires a power supply unit. For example if you have any electronic musical equipment the chances are that this will use a DC PSU (power supply unit). Your home computer will also use a PSU to step the voltage down from the wall socket so that it can run at more likely 9v or 5v. It's important that this power must be clean and constant that there are no spikes within the power which can possibly damaged the electronic components within.
If you are looking to purchase a power supply its important that you have all the vital information before you start looking around. If you're looking for a replacement adapter first insure that you know the manufacturer, model number and other information like volts and amps that are required.
Many websites have all this vital information anyway once you know the manufacturer and model number. There are many alternatives to purchasing the PSU is supplied by major manufacturers, which will do the same job for you. You will find a lot of this information online or you can visit the manufacturers website to give you more details. One thing you will sometimes find the manufacturers can charge quite a lot of money for replacement power supplies and there are lots of alternatives out there, which can give you the exact same product at a vastly reduced price.
About the Author
Learn more about 9V Power Supply and 5V Power Supply over at our website
|
|
Alcatel Power Supply Unit 3AL34963AA $462.5 Alcatel Power Supply Unit 3AL34963AA |
|
|
NEC Power Supply Unit For NEC LCD3210 J2050042 $31.29 NEC Power Supply Unit For NEC LCD3210 J2050042 |
|
|
Nortel Rpsu Redundant Power Supply Unit Rpsu $380 Nortel Rpsu Redundant Power Supply Unit Rpsu |
|
|
Cisco 7000 AC Power Supply Unit PWR7000AC $360.08 Cisco 7000 AC Power Supply Unit PWR7000AC |
|
|
Power Supply Unit (Computer) $109.93 Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A power supply unit (PSU) is the component that supplies power to the other components in a computer. More specifically, a power supply unit is typically designed to convert generalpurpose alternating current (AC) electric power from the mains (100127V in North America, parts of South America, Japan, and Taiwan; 220240V in most of the rest of the world) to usable lowvoltage direct current (DC) power for the internal components of the computer. Some power supplies have a switch to change between 230 V and 115 V. Other models have automatic sensors that switch input voltage automatically, or are able to accept any voltage between those limits. Author: Surhone, Lambert M./ Tennoe, Mariam T./ Henssonow, Susan F. Binding Type: Paperback Number of Pages: 160 Publication Date: 2011/04/01 Language: English Dimensions: 9.02 x 5.98 x 0.37 inches |
|
|
Bps120 - Zyxel 120W Redundant Power Supply - Redundant Power Supply $403.6 the Zyxel 120w Redundant Power Supply is a Stand-alone Backup Power Unit Designed to Connect up to 6 External Networking Devices. When The Internal Power Unit of One Such Device Fails, The Bps Provides Power Instantly to The Failing Device to Prevent it From Rebooting. Despite up to Six Devices Can be Connected, Only One Can be Powered by This Power Supply at The Same Time. The Output Rating is 12vdc 120 Watts. [BX0258] Truck Delivery UPC: 760559113476 UNSPC: 39121004 21L x 16.25W x 6.13H 2.3 LB 1.21 Cubes |
|
|
SMC SMCRPU14 Redundant Power Unit - power supply - 600 Watt $793.99 SMC SMCRPU14 Redundant Power Unit - Power supply - 600 Watt - 19" - for TigerStack II SMC8824M SMC8848M TigerSwitch SMC8612T2 |
|
|
IBM Power Supply Unit For Server 2880w With Fans 39Y7409 $125.42 IBM Power Supply Unit For Server 2880w With Fans 39Y7409 |
|
|
400W Intel Spare SR1630BC PSU Power Supply Unit FHJT400WPS $106.95 400W Intel Spare SR1630BC PSU Power Supply Unit FHJT400WPS |
|
|
400W Power Supply Unit For Load Sharing Resilient Operation $2187.5 400W Power Supply Unit For Load Sharing Resilient Operation |
|
|
Cabletron Adapter Board for 800W Power Supply Unit for SS6500 6C110-PBA-UGK $554.43 Cabletron Adapter Board for 800W Power Supply Unit for SS6500 6C110-PBA-UGK |
|
|
14746 - Coolmax Cul-750B Atx12V Power Supply - 750W - Atx12V Power Supply $100.95 This CUL-750B ATX12V Power Supply is a semi-modular power supply that lets you select the cables you need while powering your gaming system with a 140mm Blue LED cooling fan and 6 pin PCI-E ready. Everyone likes a clean and easy installation. This power supply allows you to keep what you want and remove what you don't. While necessary connectors, like the 20+4 pin power & 4+4 pin CPU connector are attached to the unit, you decide which of the others should stay. Customize your power supply to reflect your system. [BX9071] UPC: 895963147462 UNSPC: 39121004 6.3L x 5W x 3.3H 5 LB |
|
|
14747 - Coolmax Cul-850B Atx12V Power Supply - 850W - Atx12V Power Supply $117.48 this Cul-850b Atx12v Power Supply is a Semi-modular Power Supply That Lets You Select The Cables You Need While Powering Your Gaming System With a 140mm Blue Led Cooling Fan And 6 Pin Pci-e Ready. 850w is Offering 140mm Blue Led Cooling Fan & Dual 6+2 Pci-e Ready. Everyone Likes a Clean And Easy Installation. This Power Supply Allows You to Keep What You Want And Remove What You Don't. While Necessary Connectors, Like The 20+4 Pin Power & 4+4 Pin Cpu Connector Are Attached to The Unit, You Decide Which of The Others Should Stay. Customize Your Power Supply to Reflect Your System. [BX9072] UPC: 895963147479 UNSPC: 39121004 6.3L x 5W x 3.3H 7.5 LB |
|
|
Smcrpu14 - Smc Smcrpu14 Redundant Power Unit - Power Supply - 600 Watt - 19 inch $801.85 644w Redundant Power Supply Unit Can Supply 600 Watts of Backup Power to Four Switches in The Event of an AC Loss or Failure of an Internal Power Supply. Thermal Overload Protection Prevents The Rpu From Overheating if a Thermal Overload Occurs. Over-voltage Protection Shuts Down an Output Channel if The Voltage Exceeds a Preset Threshold Whereas Over-current Protection Shuts Down The Rpu if The Output Load Exceeds a Preset Threshold. Short-circuit Protection Prevents The Rpu From Being Damaged From a Short Circuit on Any Output Channel. It Can be Mounted in a Standard 19 inch Equipment Rack(brackets Included) or on a Flat Surface. [04411B] UPC: 662698583250 UNSPC: 39121004 22.36L x 16.06W x 5.63H 22.4 LB 1.17 Cubes |
|
|
Dps-500 - D-Link 140Watt Redundant Power Supply Unit - 140W - Redundant Power Supply $302.93 The Modular Design Of The Dps Series Of Rpsus Enables Companies To Selectively And Cost Effectively Deploy Higher Availability Configurations Precisely When And Where They Are Needed Most. When Paired With A Supported D-link Switch, The Dps-200, And Dps-500 Provide Uninterrupted Fail-over, In The Unlikely Event Of A Mechanical Power Supply Failure. The System Integration Between D-link's Managed Layer 2 Switches, Layer 3 Switches, And Rpsu System, Provide Customers With The Fundamental Building Blocks To Create Economical And Scalable Networks Without Having To Sacrifice Network Performance And Availability. [DPS500] UPC: 790069255359 UNSPC: 39121004 13.5L x 11W x 4H 5.7 LB 0.31 Cubes |
|
|
Dps-200 - D-Link 60Watt Redundant Power Supply Unit - 60W - Redundant Power Supply $188.66 The Modular Design Of The Dps Series Of Rpsus Enables Companies To Selectively And Cost Effectively Deploy Higher Availability Configurations Precisely When And Where They Are Needed Most. When Paired With A Supported D-link Switch, The Dps-200, And Dps-500 Provide Uninterrupted Fail-over, In The Unlikely Event Of A Mechanical Power Supply Failure. The System Integration Between D-link's Managed Layer 2 Switches, Layer 3 Switches, And Rpsu System, Provide Customers With The Fundamental Building Blocks To Create Economical And Scalable Networks Without Having To Sacrifice Network Performance And Availability. [DPS200] UPC: 790069252594 UNSPC: 39121004 1L x 3W x 2H 5 LB 0.38 Cubes |
|
|
14738 - Coolmax Cu-500B Atx12V & Eps12V Power Supply - 500W - Atx12V & Eps12V Power Supply $69.26 The Coolmax CU-500B ATX12V & EPS12V Power Supply is a partial modular power supply that lets you select the cables you need while powering your system at a healthy 500 watts. Everyone likes a clean and easy installation. This power supply allows you to keep what you want and remove what you don't. While necessary connectors, like the 20+4 pin power connector, are attached to the unit, you decide which of the others should stay. Customize your power supply to reflect your system. [T22144] UPC: 895963147387 UNSPC: 39121004 6L x 5.5W x 3.5H 5 LB |
|
|
14739 - Coolmax Cu-600B Atx12V & Eps12V Power Supply - 600W - Atx12V & Eps12V Power Supply $79.55 The Coolmax CU-600B ATX12V & EPS12V Power Supply is a partial modular power supply that lets you select the cables you need while powering your system at a healthy 600 watts. Everyone likes a clean and easy installation. This power supply allows you to keep what you want and remove what you don't. While necessary connectors, like the 20+4 pin power connector, are attached to the unit, you decide which of the others should stay. Customize your power supply to reflect your system. [T22145] UPC: 895963147394 UNSPC: 39121004 6L x 5.5W x 3.5H 5 LB |
|
|
14740 - Coolmax Cu-700B Atx12V & Eps12V Power Supply - 700W - Atx12V & Eps12V Power Supply $87.65 the Coolmax Cu-700b Atx12v & Eps12v Power Supply is a Partial Modular Power Supply That Lets You Select The Cables You Need While Powering Your System at a Healthy 700 Watts. Everyone Likes a Clean And Easy Installation. This Power Supply Allows You to Keep What You Want And Remove What You Don't. While Necessary Connectors, Like The 20+4 Pin Power Connector, Are Attached to The Unit, You Decide Which of The Others Should Stay. Customize Your Power Supply to Reflect Your System. [T22146] UPC: 895963147400 UNSPC: 39121004 6L x 5.5W x 3.5H 5 LB |
|
|
Smp5 - Altronix Smp5 Proprietary Power Supply $50.81 This power supply/charger converts a low voltage AC input into 6VDC, 12VDC or 24VDC @ 4 amp continuous supply current. This unit has a wide range of applications for access control, security and CCTV system accessories that require additional power. [2941189] UPC: 782239930470 UNSPC: 39121004 3L x 2W x 4H 0.45 LB |
|
|
Al600Ulmr - Altronix Multi-Output Ac Power Supply - Ac Power Supply $263.04 Model AL600ULMR is specifically designed for use with access control systems and accessories. This unit converts a 115VAC 60Hz input into five (5) PTC protected 12VDC or 24VDC @ 6 amp Class 2 Rated power limited outputs. [NA3447] Truck Delivery UPC: 782239932078 UNSPC: 39121004 13.25L x 4.25W x 14.7H 8.9 LB |
|
|
Smp5Pm - Altronix Smp5Pm Proprietary Power Supply $63.46 This Altronix supervised power supply/charger converts a low voltage AC input into a 12VDC or 24VDC output. This unit has a wide range of applications for access control, security and CCTV system accessories that require additional power. [NC2769] Truck Delivery UPC: 782239930487 UNSPC: 39121004 4.25L x 2.25W x 7.25H 0.6 LB |
|
|
Smp3Pm - Altronix Smp3Pm Proprietary Power Supply $56.22 This Altronix supervised power supply/charger converts a low voltage AC input into a 12VDC or 24VDC output. This unit has a wide range of applications for access control, security and CCTV system accessories that require additional power. [NC2765] Truck Delivery UPC: 782239930449 UNSPC: 39121004 4.25L x 2.25W x 7.25H 0.5 LB |
|
|
Datalogic S.p.A PG12-10P55-US Power Supply Unit 12 VDC With Power Cord US VER. 90ACC1920 $25.75 Datalogic S.p.A PG12-10P55-US Power Supply Unit 12 VDC With Power Cord US VER. 90ACC1920 |
|
|
D-Link 140Watt Redundant Power Supply Unit $248.99 -13°F (-25°C) to 131°F (55°C) Storage 1 Year Limited 1.77" Height x 6.69" Width x 7.48" Depth 10% to 90% Storage 115 V AC to 230 V AC 12 V DC 140 W 140Watt Redundant Power Supply Unit 16 ms 2.20 lb 20% to 80% Operating 230 V AC 32°F (0°C) to 104°F (40°C) Operating 4 A @110 V AC/2 A @220 V AC 47 Hz to 63 Hz 9840 ft Maximum Operating CSA CUL EN 60950 FCC Class B certified UL 60950 DGS-3224SR 24 Port managed Layer 2 Switch DGS-3324SRi DES-3352SR DPS-500 140Watt Redundant Power Supply Unit RPSU Cables and Power Cord D-Link D-Link Systems, Inc DPS-500 Redundant Power Supply The modular design of the DPS Series of RPSUs enables companies to selectively and cost effectively deploy higher availability configurations precisely when and where they are needed most. When paired with a supported D-Link switch, the DPS-200, and DPS-500 provide uninterrupted fail-over, in the unlikely event of a mechanical power supply failure. The system integration between D-Link's Managed Layer 2 switches, Layer 3 switches, and RPSU system, provide customers with the fundamental building blocks to create economical and scalable networks without having to sacrifice network performance and availability. www.dlink.com |
|
|
Laerdal Wall Bracket With AC Power Cord for Suction Unit $399.1 Laerdal Wall Bracket With AC Power Cord for Suction Unit |
|
|
Smp10C12X - Altronix Smp10C12X Proprietary Power Supply - 110 V Ac $188.47 Model SMP10C12X power supply/charger converts a 115VAC 50/60Hz input, to a 12VDC @ 10 amp of continuous supply current output. Model SMP10PMC12X is a supervised version of this unit. [NC2743] Truck Delivery UPC: 782239930401 UNSPC: 39121004 13.25L x 4.25W x 14.7H 8.65 LB |
|
|
Smp7Ctx - Altronix Smp7Ctx Proprietary Power Supply - 110 V Ac $161.47 Model SMP7CTX power supply/charger converts a 115VAC 50/60Hz input, to a 12VDC or 24VDC @ 6 amp of continuous supply current output. Model SMP7PMCTX is a supervised version of this unit. [NC2772] Truck Delivery UPC: 782239931125 UNSPC: 39121004 13.25L x 4.25W x 14.7H 8.65 LB |
|
|
Smp7Pmctx - Altronix Smp7Pmctx Proprietary Power Supply - 110 V Ac $173.41 Model SMP7PMCTX power supply/charger converts a 115VAC 50/60Hz input to a 12VDC or 24VDC output. It provides 6 amp of continuous supply current. Model SMP7CTX is a non-supervised version of this unit. [NC2774] Truck Delivery UPC: 782239930760 UNSPC: 39121004 13.25L x 4.25W x 14.7H 8.65 LB |
|
|
Smp10C24X - Altronix Smp10C24X Proprietary Power Supply - 110 V Ac $263.56 Model SMP10C24X power supply/charger converts a 115VAC 50/60Hz input, to a 24VDC @ 10 amp of continuous supply current output. Model SMP10PMC24X is a supervised version of this unit. [NC2744] Truck Delivery UPC: 782239930425 UNSPC: 39121004 16.4L x 5.9W x 13.5H 11.15 LB |
|
|
Smcrpu14 - Lg-Ericsson 644W Redundant Power Supply - 644W - Redundant Power Supply $781.6 644w Redundant Power Supply Unit Can Supply 600 Watts Of Backup Power To Four Switches In The Event Of An Ac Loss Or Failure Of An Internal Power Supply. Thermal Overload Protection Prevents The Rpu From Overheating If A Thermal Overload Occurs. Over-voltage Protection Shuts Down An Output Channel If The Voltage Exceeds A Preset Threshold Whereas Over-current Protection Shuts Down The Rpu If The Output Load Exceeds A Preset Threshold. Short-circuit Protection Prevents The Rpu From Being Damaged From A Short Circuit On Any Output Channel. It Can Be Mounted In A Standard 19 inch Equipment Rack(brackets Included) Or On A Flat Surface. [G35174] UPC: 662698583250 UNSPC: 39121004 16L x 22.4W x 5.9H 22.2 LB 1 Cubes |
|
|
Al400Ulpd8 - Altronix Al400Ulpd8 Proprietary Power Supply - 110 V Ac $185.2 Model AL400ULPD8 power supply/charger converts a 115VAC 60Hz input, to a 4 amp of continuous supply current @ 12VDC or 3 amp of continuous supply current @ 24VDC distributed via eight (8) fuse protected Class 2 Rated power limited outputs. Model AL400ULPD8CB is a PTC protected version of this unit. [NA3432] Truck Delivery UPC: 782239936359 UNSPC: 39121004 13.25L x 4.25W x 14.7H 8.85 LB |
|
|
Al400Ulxpd16Cb - Altronix Al400Ulxpd16Cb Proprietary Power Supply - 110 V Ac $227.13 Model AL400ULXPD16CB power supply/charger converts a 115VAC 60Hz input, to a 4 amp of continuous supply current @ 12VDC or 3 amp of continuous supply current @ 24VDC distributed via sixteen (16) PTC protected Class 2 Rated power limited outputs. Model AL400ULXPD16 is a fuse protected version of this unit. [NA3437] Truck Delivery UPC: 782239937165 UNSPC: 39121004 16.4L x 5.9W x 13.5H 11.35 LB |
|
|
Radial Engineering Tonebone 15V DC Power Supply $19.99 This power supply unit works with the Tonebone Pedal series from Radial. |
|
|
Radial Engineering Tonebone 15V Dc Power Supply $19.99 This power supply unit works with the Tonebone Pedal series from Radial. |
|
|
Enermax MAXREVO EMR1350EWT ATX12V & EPS12V Power Supply $750.24 1350W Maxrevo 87+ Eps Modular Pwr Power Supply Unit |
|
|
LEPA N500-SA ATX12V & EPS12V Power Supply $113.83 500W LEPA N500-SA ATX 12V PWR NATIVE POWER SUPPLY UNIT |
|
|
Medfusion Power Supply $142.6 Medfusion Power Supply |
|
|
Smp7 - Altronix Smp7 Proprietary Power Supply - 28 V Ac $79.73 This power supply/charger converts a low voltage AC input into 12VDC or 24VDC @ 6 amp continuous supply current. This unit has a wide range of applications for access control, security and CCTV system accessories that require additional power. [NC2771] Truck Delivery UPC: 782239930722 UNSPC: 39121004 4.25L x 2.25W x 7.25H 1.05 LB |


US $1.99

























































































