A power supply converts AC mains voltage (120V or 240V at 50/60Hz) into the stable DC voltages that electronic circuits require through four sequential stages: (1) a transformer steps the high mains voltage down to a safer, lower AC voltage; (2) a rectifier (diode. A power supply converts AC mains voltage (120V or 240V at 50/60Hz) into the stable DC voltages that electronic circuits require through four sequential stages: (1) a transformer steps the high mains voltage down to a safer, lower AC voltage; (2) a rectifier (diode. AC to DC power supply design is a fundamental aspect of electronics engineering, enabling the conversion of alternating current (AC) from the mains supply to direct current (DC) required by most electronic devices. This process involves several stages, including rectification, filtering. Build your own AC to DC voltage converter with this safe, step-by-step guide. You must understand all risks before starting. AC, or alternating current, oscillates sinusoidally, whereas DC, or direct current, flows in one direction. This conversion is necessary for many electronic devices, as most require stable DC voltage to operate, such as the external transformers used with laptops, media players, gaming consoles, and almost. Learn how power supplies convert AC mains to usable DC voltage through transformation, rectification, filtering, and regulation with complete design examples. You are required to go through a series of learning.