Initially, as the commercial power supply enters the system, it undergoes a thorough purification process. High-frequency clutter and interference signals are efficiently eliminated by the choke coil and capacitor. Subsequently, the rectification and filtering procedures yield a high-voltage DC power output. This direct current is then skillfully transformed into pulsating direct current through a switched circuit, facilitating its transmission to a high-frequency switching transformer for voltage reduction. The ensuing stage involves filtering out the high-frequency AC component, resulting in the production of considerably pure low-voltage DC power suitable for utilization in computer systems.
