Overview

This project consists of the design and implementation of a variable DC power supply. The system provides an output voltage ranging from 0 V to 20 V. The circuit was simulated in Proteus, fabricated on a custom PCB.

  • Variable voltage output: 0 V to 20 V
  • LM317 regulator
  • Full-wave bridge rectifier and smoothing capacitors
  • Manual adjustment via potentiometer
  • Integrated voltmeter display
  • Validated output stability under varying load conditions

Tools and Components

  • Simulation: Proteus
  • Fabrication: PCBWay
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