Q. What are the three main functions of a DC regulated power supply?

Answer

Constant voltage, voltage limit, and current limit are the three most common outputs or functions for DC regulated power supply. Different configurations of these outputs can be built into power supply to meet the needs of specific tasks. The output voltage is stable regardless of load, line, or environmental conditions. Therefore, the output voltage remains stable. In a perfect world, constant voltage power supply' output impedance would be 0 over the whole frequency spectrum. There is a load device, a rectifier, and a control element connected in series to make up the circuit. Regulation of this sort is typical of linear power supply.