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Cal Poly

A Novel Arc Welding Power Supply with Improved Power Factor Correction

Abstract

dc:description.abstract

<p>This paper presents the design and development of a novel Arc Welding Power Supply utilizing a modified two-switch forward converter topology. The proposed design improves the power quality by improving power factor to near unity and reducing total harmonic distortion. State space analysis of the proposed circuit showed that the circuit followed a boost-buck input output relationship. Simulation of the circuit was first implemented in LTspice to verify the functionality of the new topology. Hardware implementation of the proposed design was built on a scaled-down prototype for a proof-of-concept of the new topology. The prototype specifications were created for a 5A, 20V output with a 20-24V, 60Hz input. This project demonstrated that the proposed new topology was successful in obtaining a near unity power factor and a total harmonic distortion of less than 2%. Additionally, the prototype followed the simulation and calculations of a boost-buck function while varying duty cycle, and the final measurements aligned well with waveforms from the simulation.</p>

Degree

thesis:*
Name thesis:degree_name
MS in Electrical Engineering
Discipline thesis:degree_discipline
Electrical Engineering
Year dc:date.available
2020

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Tan, Benjamin H
Contributors dc:contributor
  • Taufik
  • Electrical Engineering
  • College of Engineering

Subjects

dc:subject × 7

Identifiers

dc:identifier.*
OAI identifier oai:identifier
oai:digitalcommons.calpoly.edu:theses-3604

Chain of custody

source
Harvested from
Cal Poly
Base URL
digitalcommons.calpoly.edu/do/oai/
Last updated
2026-07-24
Source record
OAI-PMH GetRecord
citation

Tan, Benjamin H. A Novel Arc Welding Power Supply with Improved Power Factor Correction. 2020. https://digitalcommons.calpoly.edu/theses/2199