Thread: Power Conversion Circuitry

The "guts" of the power supply is usually a circuit board with various electrical components on it, mounted inside the metal box of the supply. All the cables going into and out of the power supply go to this circuit, including those of the remote power switch, if any. This circuitry is responsible for converting AC to DC within the power supply. It also manages the other power supply functions. In newer supplies, many of the features of the power ,supply are combined into special integrated circuits to reduce space requirements and eliminate manufacturing costs. The circuitry inside the case of the power supply relies on the power supply fan for ventilation and cooling.