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

Siddharth Kulasekaran; Nikhil Korada; Raja Ayyanar

doi:10.1109/APEC.2017.7931003

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 proceeding › Conference 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 language	English (US)
Title of host publication	2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	2193-2198
Number of pages	6
ISBN (Electronic)	9781509053667
DOIs	https://doi.org/10.1109/APEC.2017.7931003
State	Published - May 17 2017
Event	32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017 - Tampa, United States Duration: Mar 26 2017 → Mar 30 2017

Other

Other	32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017
Country/Territory	United States
City	Tampa
Period	3/26/17 → 3/30/17

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/APEC.2017.7931003

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A 500 kHz, 3.3 kW boost PFC with low loss coupled auxiliary ZVT circuit. / Kulasekaran, Siddharth; Korada, Nikhil; Ayyanar, Raja.

2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017. Institute of Electrical and Electronics Engineers Inc., 2017. p. 2193-2198 7931003.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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., 7931003, Institute of Electrical and Electronics Engineers Inc., pp. 2193-2198, 32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017, Tampa, United States, 3/26/17. https://doi.org/10.1109/APEC.2017.7931003

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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.",

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N2 - 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.

AB - 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.

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

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