A device that converts alternating current (AC) voltage from a wall outlet into a direct current (DC) voltage suitable for electronic devices is a type of power supply. This particular power supply operates by rapidly switching a transistor on and off to transfer energy, resulting in a more efficient and compact design compared to traditional linear power supplies. An example is the “brick” that provides power to a laptop computer.
The significance of this technology lies in its energy efficiency and reduced size and weight. Traditional linear power supplies dissipate excess energy as heat, whereas this advanced design minimizes energy waste, leading to lower electricity bills and a reduced environmental footprint. Their compact nature makes them ideal for portable electronics and applications where space is limited. Over time, these power supplies have replaced less efficient designs in many applications due to these benefits.
