S.M.P.S.



It means Switch Mode Power Supply. There are two types of SMPS are there. 1. AT ( Advanced Technology ). 2. ATX (Advanced Technology Extended). It is used to Convert the 220v AC or 110V AC Power into 12v,5v and Other DC voltages which are required the Peripherals inside the CPU Like Motherboard, Harddisk Drive, Floppy Disk Drive, CD or DVD Drives etc.,




To perform this operation, it receives the AC power, converts into DC with the help of a Bridge Rectifier, and stabilizes the DC Voltage separately. Then, with the help of a Switching Transformer it converts the voltage into 12v,5v and other Voltages. Again they will be Stabilized in the Secondary Part and then Connected to the Peripherals with the help of the Cables with Connectors.

The main difference between AT and ATx Power Supply is, AT works with a Mechanical Switch. The switching is not programmable in the AT Model. But in the ATX it works with the Logical Switching Circuit, which can be switched by the various sources like, Power Switch, Alarm, Keyboard, Mouse, Password, Wakeonlan etc.,

The Motherboard Connectors :

AT : 6+6=12 Pins
ATX: 20 Pin and 24 Pin.

Comments

Jai Kishan said…
Very informative read describing the functionality of SMPS. Your post is superb through going your article I know more about the importance of a SMPS in a PC. Thanks for sharing us updated information.

UPS Power Solutions
June 30, 2010 at 3:40 AM
Unknown said…
just linked this article on my facebook account. it’s a very interesting article for all.

5v SMPS
November 14, 2010 at 1:55 AM
Warning :The site is not suitable for chidrens under 18 said…
thanks a lot yaar, i wrote this post on exam and i got full marks for the qn. thanks a lot
November 12, 2011 at 8:55 PM
Anonymous said…
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July 11, 2014 at 6:47 PM
Unknown said…
Good points about smps. It is very important part of the computer. Thanks for details. We are into computer and hp laptop serviceand it is very useful for me and our service team.
March 10, 2017 at 1:09 AM
Deepa S said…
This comment has been removed by the author.
March 10, 2017 at 9:32 PM
saravanan uday said…
Good details. Learning to repair the smps, by reading like this is very fun and also with images is really helpful. We run computer and washing machine service center so it is very much helpful for me and also our entire service team. Keep writing more.
March 16, 2017 at 3:30 AM
Chandran C said…
This comment has been removed by the author.
March 31, 2017 at 4:28 AM
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