Switching Power Supply

A switching power supply is an efficient electronic device designed to convert high-voltage alternating current (AC), typically 110V or 220V, into various levels of low-voltage direct current (DC) such as 5V, 12V, 24V, or 36V, depending on the application. It works by first rectifying and filtering the AC input into DC, then using high-speed switching transistors to rapidly turn the current on and off. This switched signal is passed through a transformer or inductor, which adjusts the voltage level and provides isolation. The resulting voltage is then rectified and filtered again to produce a stable DC output. Switching power supplies are highly efficient, compact, and widely used in electronic devices, industrial equipment, and systems where multiple DC voltages are required from a single AC source.