What is a DC Power Supply?
An AC-DC Power Supply is a Power electronics equipment which converts Alternating Current (AC) into Direct Current (DC) with arbitrary output voltage and current.
How do Industrial AC/DC Power Supplies work?
The block diagram below describes the AC to DC conversion process: the AC Input is stepped-down with a transformer, then converted to DC with a full-bridge rectifier and modulated with high-power Insulated Gate Bipolar Transistors (IGBT).
This process allows to safely and efficiently convert energy up to a certain power (4 kW), so, in order to obtain higher powers, several AC/DC Converter Modules are parallelized and synchronized, as depicted in the next diagram (MCB Electronics’ DC Power Supply block diagram):