Modeling Power Factor Correction Circuits with LTspice

Michael Giesselmann, Vishwajit Roy

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

LTspice is a powerful simulation language that is specifically optimized for modeling Switch Mode Power conversion. It is not limited to small numbers of nodes and freely available [1]. We are presenting several examples of simulations for popular electronic power factor correction circuits that improve the input power factor of AC Power Supplies by active wave-shaping of the AC input current and the associated avoidance of harmonics. The simulations are performed using a cycle-by cycle switching approach as well as using a time averaged PWM model. A fast inner current loop is controlling the shape of the input current such that it matches the sinusoidal shape of the AC input voltage. A time averaged PWM model is useful for fast simulations covering many cycles to design and study secondary feedback control that regulates the output voltage of the converter.

Original languageEnglish
Title of host publication2018 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages162-165
Number of pages4
ISBN (Electronic)9781538654538
DOIs
StatePublished - Jun 2018
Event2018 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2018 - Jackson, United States
Duration: Jun 3 2018Jun 7 2018

Publication series

Name2018 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2018

Conference

Conference2018 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2018
CountryUnited States
CityJackson
Period06/3/1806/7/18

Keywords

  • Boost converter
  • Feedback control
  • LTspice
  • Power Factor Correction
  • Time Averaged models

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