Simple Explanation

A device that converts mains electricity into the necessary DC voltage to power an electronic device or circuit.

Concise Technical Definition

A power supply is a unit that converts AC (mains) electricity to the required DC voltages to power electronic circuits or devices. It ensures a stable power source for electronics that need DC input.

Layman-Friendly Analogy

Think of it like a charger for your phone: it takes the electricity from the wall (AC) and converts it into the right kind of energy (DC) to charge the device.

Industry Usage Summary

Power supplies are essential components in most electronic systems, from computers to audio equipment. They convert AC from the mains power grid into the appropriate DC voltage levels required by the device. Power supplies are commonly found in consumer electronics, industrial machinery, and telecommunications equipment. In audio systems, a reliable power supply ensures consistent performance by providing clean, stable DC voltage.

Engineering Shortcut

A unit that converts AC to DC to power electronic devices.

Full Technical Explanation

A power supply is an electronic unit designed to convert the AC mains electricity into the required DC voltages necessary to power electronic circuits or devices. It typically includes rectifiers, filters, and regulators to ensure that the DC voltage is stable and within the necessary range for the device’s operation. Power supplies can be linear or switch-mode, with switch-mode power supplies (SMPS) being more common in modern electronics due to their higher efficiency and compact design. Power supplies are crucial for providing the appropriate power to various types of electronic devices, ranging from small consumer gadgets to large industrial systems.