Stabilizing 5V and 12V in a Computer Power Supply

In a computer power supply (PSU), the stabilization of 5V and 12V outputs is achieved using a switching power converter with feedback control. Below are the primary methods used for voltage stabilization:

1. PWM Control (Pulse Width Modulation)

Modern ATX power supplies use PWM to regulate the output voltage. A controller monitors the output voltage and adjusts the duty cycle of switching transistors accordingly. This maintains stable voltage levels despite changes in load.

Digital Computer Integrated Automation Systems

Digital Computer Applications. There are such applications of minicomputers as: Supervision of plant operating data with alarm recording, data logging and process monitoring of the process.

Automation and control systems can be conveniently integrated with minicomputer digital processors.