What's a power supply

Computer dictionary definition for what PS and PSU ( Power Supply ) means including related links, information, and terms. Modern personal computers universally use switched-mode power supplies. A power supply is an electrical device that supplies electric power to an electrical load. It receives power from an electrical outlet and converts the current from AC (alternating current) to DC (direct current), which is what the computer requires.

Typically, it converts one type of.

It supplies power to the motherboar drives, and certain expansion cards.

It normally has at least one fan that helps cool the power supply and will assist in the task of cooling the computer.

Some power supplies have an additional outlet on the back that can be . Others pay no attention to their PSU selection at all, and settle for whatever abomination arrived with . But while CPUs, GPUs and other components command more attention, . A computer power supply takes AC power from the wall and converts it into DC power. During this conversion, some power is lost and is exhausted as heat. Shop Power Supplies from Corsair, EVGA, Rosewill, Thermaltake and more! Newegg offers the best prices, fast shipping and top-rated customer service!

Despite common misconceptions, power supply and motherboard factors have almost nothing to do with each other. A look at the gritty details of what gives your rig its juice. The positive voltages seemingly power everything in the system (logic and motors), so what are the negative voltages used for? The power supply unit ( PSU) is one of the PC components that we tend to take for granted. The only reason it remained in most power supply designs for many years is that . Your PC's power supply is one of its most important components.

It also provides protection from power surges. Every other component and peripheral depends on it. No matter how basic or complex you. Power Supply Calculator - Select computer parts and our online PSU calculator will calculate the required power supply wattage and amperage for your PC. SMPS stand for Switch Mode Power Supply.

It is mainly an electronic power supply device used in desktop computer systems. The main purpose of using an SMPS is to transfer power from AC source to DC applicants while converting voltage and current. It is mostly used in domestic products like personal . The most important component of your build is the Power Supply Unit (PSU).

The PSU is the heart of any computer, providing electricity to the components. A battery backup system will keep your PC running .