A power supply is a factor that provides power to at least one electric powered load. Generally, it converts one kind of power to another, but it may also turn a different form of electricity – such as solar, mechanical, or chemical – into power. A power supply provides components with power. The term usually pertains to gadgets integrated within the element being powered. For example, pc power provides turn AC present to DC present and are generally located at the rear of the pc situation, along with at least one fan.
You can locate the power source on a system unit by simply finding the input where the cord is plugged in. Without opening your pc, this is most of the only part of the power source you will see. If you were to get rid of the power source, it would look like a metal box with a fan inside and some cables attached to it. Of course, you should never have to get rid of the power source, so it’s best to leave it in situation.
Purposes of a Power Supply
The power from a wall plug is high-voltage AC. The kind of power computer systems need is low-voltage DC. All pc parts (the electronic chips on the mother board and plugs, the electronics on the drives, and the motors in the hard generate drive and optical drive) need DC power to operate. Power provides in general come in two types: straight line and changing. Computers use changing power provides. The main functions of a power source include the following:
- Convert AC to DC
- Provide DC v to the mother board, plugs, and peripheral devices
- Provide cooling and facilitate air flow through the case
How power supplies work
A power source is used to lower the mains power at 240 v AC down to something more useable, say 12 v DC. There are two kinds of power source linear and switch mode. A linear power source uses a transformer to lower the voltage. The number of primary windings (connected to the mains) to the number of additional windings (connected to the output) would give the rate of how much the v reduced by, in this situation a rate of 20:1 reduces the 240 v AC feedback in to 12 v AC on the additional windings. A switch mode works by turning the mains power on and off very quickly to lower the v. In this situation the reduction in voltage depends upon the rate of the on time and off time. Switching occurs very fast, at 10,000 times a second or quicker. Using this technique the bulky transformer found in a straight line supply can be replaced with a smaller one.
A power source of high quality and with enough capacity can increase the durability of your equipment reducing your utility bill (we will explain why when discussing efficiency). Just to get an idea, a high-quality power source will cost less than 5% of the PC price tag. On the other hand, a low-quality power source can cause several intermittent issues, most of which are difficult to solve. A defective or bad-intentioned power source can lock the PC, result in difficult generate bad blocks, cause the infamous “blue screen of death” errors, and give rise to random resets and freezing, added to many other issues. There are many power supplies available all over.