The main purpose of a power supply is to convert electric current from a source to the correct voltage, current, and frequency to power the load. As a result, power supplies are sometimes referred to as. While the term "power supply" can broadly refer to generators, power plants, batteries, and solar cells, in electronics, it specifically refers to a device or circuit that converts available input power into the precise voltage and current required by a load. This section outlines the fundamentals. Have you ever imagined that Computer Power Supply can be useful in many other areas apart from converting the EC electricity into the DC electricity for your computer to use safely? Well, there are so many other uses of a power supply. This is needed to run the equipment. The analogy is that (paraphrasing here) "If Johnny wants to eat two apples, he'll only eat two regardless of whether you give him three or five, etc.
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