A 500 kHz, 3.3 kW boost PFC with low loss coupled auxiliary ZVT circuit

Siddharth Kulasekaran, Nikhil Korada, Raja Ayyanar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

The paper presents a low-loss auxiliary circuit in a power factor correction (PFC) circuit to achieve zero voltage transition and hence improving the efficiency and operating frequency. The high dynamic energy generated in the switching node during turn-on is diverted by providing a parallel path through a coupled auxiliary inductor and a transistor placed across the main inductor. The auxiliary devices operate with soft-switching at both turn-on and turn-off instances and this addition has no effect on the control of the main PFC circuit. Using a coupled inductor reduces the losses in the auxiliary circuit in addition to the inherent loss savings in the main PFC switch. The paper discusses the theoretical analysis, operating principles and design of the proposed scheme in detail and validated with an hardware showing experimental results on a 3.3 kW/ 500 kHz PFC prototype.

Original languageEnglish (US)
Title of host publication2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2193-2198
Number of pages6
ISBN (Electronic)9781509053667
DOIs
StatePublished - May 17 2017
Event32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017 - Tampa, United States
Duration: Mar 26 2017Mar 30 2017

Other

Other32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017
CountryUnited States
CityTampa
Period3/26/173/30/17

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Kulasekaran, S., Korada, N., & Ayyanar, R. (2017). A 500 kHz, 3.3 kW boost PFC with low loss coupled auxiliary ZVT circuit. In 2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017 (pp. 2193-2198). [7931003] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APEC.2017.7931003