What is PFC and why do I need it? Wiring the supply There are three types of PC power supply you will commonly encounter. Don't risk metal parts, like screw drivers, falling into it through the venting holes, either. It won't stay running.
In almost all cases it's not needed. Computer power supplies were designed for that purpose, not as a laboratory supply, so if we use them for this purpose, we must be sure to provide a proper environment. You may want to use this output instead. Not responsible for any loss resulting from the use of this site. check it out
How is this sorting algorithm Θ(n³) and not Θ(n²)? I've set this one aside for now pending a solution. Finally, it's expensive to buy a 1100 watt PSU and one frequently runs into problems fitting them into cases as they are usually much deeper than PSU's in the 850 watt
Add a USB Power Outlet (optional)13. But some newer ATX12V 2.xx supplies have higher minimum requirements of around one amp. What does this mean? Atx Power Supply Dummy Load when I thought of this I was having a flashback to grade 7 electronics class lol where we used a similar method to connect led lights to a board as some
Like everyone else said already, the -5v and -12v are very low current rails, usually below 0.5 A. -12v is still used for rs232 (Serial ports) and it was still present Atx Bench Power Supply Load Resistor What does 1U, 2U or 3U mean? A computer power supply converts the AC power from the wall outlet into smaller DC voltages that power the various components of the computer. https://mysite.du.edu/~etuttle/electron/elect62.htm Hard disks also often wait a little while before spinning up.
A diode (an LED is a type of diode), doesn't limit current. 3d Printer Atx Power Supply Like the iPhoney. I have this PSU that was intended for an HTPC, but that project has fallen by the wayside. Ask a Question See Latest Posts TechSpot Forums are dedicated to computer enthusiasts and power users.
Connecting a 20A+ supply to something like a micro powered project using 300ma can be a costly mistake. http://electronics.stackexchange.com/questions/80547/operating-a-switched-mode-power-supply-without-a-load One of those rare cases is when you don't meet the minimum current requirement on a rail. Atx Power Supply Load Resistor Find The PC Guide helpful? Atx Power Supply Wire Colors Template:Clear Base Load Some ATX PSUs (not all) require a minimum load on the 5V rail to work properly.
Martinez That was made wtih a laser cutter! They are usually designed for crossfire setups, which is, of course, the last thing I care about in a video server in a rack. You can probably be seriously hurt, so please be very careful. One side effect of this technology is the minimum load requirement that each power supply has. Atx Power Supply Minimum Load
Jason Poel SmithMy name is Jason Poel Smith. or something else? Good luck, and let us know what you find!
2. We can wait until the supply is tested to find out which.
View my complete profile Toggle navigation Latest Latest Stories Dev Boards Robots Maker Pro Skill Builders Digital Fabrication Maker Faire Education Projects All Projects Maker Camp Technology Digital Fabrication Craft Convert Atx Power Supply To Bench Power Supply This can lead to noise problems both electrical and audible. Did you put a meter on it?
But yeah I guess it varys with PSU. Logged dennisyuki Contributor Posts: 33 Country: Re: Questions about ATX bench power supply build « Reply #3 on: January 05, 2013, 02:31:06 AM » I am using an ATX that I recently did a board with a SMPS that output 12V, and when I accidentally had it unloaded, it shot up to 41V! Reprap Atx Power Supply Modern power supplies have drastically reduced the degree to which loading is an issue.
On Channel 1 (+5V), the output from the transformer is rectified and filtered to provide a smooth, DC output. But if they turned the fans down to minimum speed then their PSUs would turn on for a moment and the turn off. The regulation on this output is typically 1 to 2%. It is the only way I can get it running.
Or just produce unstable output voltages? Whether your ATX PSU requires a base load or not has to be tried. If you have another type of electronics (e.g. The amount of load required can vary considerably between different form factors, between manufacturers and even between specific designs from the same manufacturer.
Retrieved from "http://reprap.org/mediawiki/index.php?title=PC_Power_Supply&oldid=144177" Categories: TutorialsPower Supply Navigation menu Personal tools Log in Namespaces Page Discussion Variants Views Read View source View history Actions Search Navigation Main Page Build a RepRap Glossary They have two 6-pin keyed single-inline connectors that plug into the motherboard right next to each other. output current claimed at each voltage, for example.
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