Power Supply Unit Computer Science

Power supply unit or psu is a hardware that is responsible for converting the consumer supply current to consistent electronic circuit current of computer.

Power supply unit computer science.

The power supply then pulls the required amount of electricity and converts the ac current to dc current. Modern personal computers universally use switched mode power supplies some power supplies have a manual switch for selecting input voltage while others automatically adapt to the mains voltage. They convert the 60 hertz hz or cycles per second current to a much higher frequency meaning more cycles per second this conversion enables a small lightweight transformer in the power supply to do the actual voltage step down from 110 volts or 220 in certain countries to the voltage needed by the particular computer. The power supply converts a 110 115 or 220 230 volt ac alternating current into a steady low voltage dc direct current usable by the computer and rated by the number of watts it generates.

The power supply unit is the piece of hardware that converts the power provided from the outlet into usable power for the many parts inside the computer case. A power supply unit or psu converts mains ac to low voltage regulated dc power for the internal components of a computer. It converts the alternating current from your wall outlet into a continuous form of power called direct current that the computer components require. The switching power supplies used today are much smaller and lighter.

Most modern desktop personal computer power supplies conform to the atx. It also regulates the voltage to eliminate spikes and surges common in most electrical systems. If must have noticed a usual car or motorbike repairing shop some of them have a box like unit with various output terminals they test the bulbs and other electrical and electronic components by attaching with it.