Novel Switching Control Method for Synchronous Rectifier of Phase-Shifted Full-Bridge Converter in Light-Load Conditions

Sunho Lee; Junhyuk Lee; Usman Ali Khan; Jung Wook Park

doi:10.1109/ECCE.2019.8912223

Novel Switching Control Method for Synchronous Rectifier of Phase-Shifted Full-Bridge Converter in Light-Load Conditions

Sunho Lee, Junhyuk Lee, Usman Ali Khan, Jung Wook Park

Department of Electrical and Electronic Engineering

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

4 Citations (Scopus)

Abstract

This paper proposes the new switching control method for the synchronous rectifier (SR) of phase-shifted full-bridge (PSFB) converter in light-load conditions, where it usually operates in discontinuous conduction mode (DCM) to reduce the effective duty ratio and core loss caused by reverse current. However, it has the problem that the current flows through the body diode instead of the channel of SR. This causes undesirable conduction loss. The proposed switching control method of SR reduces the conduction loss by optimizing its turn-on time to minimize the conduction ranges of body diode without an auxiliary circuit. In particular, its boundary condition and loss calculation is mathematically analyzed. Then, its practical effectiveness is verified by experimental tests based on hardware implementation for the PSFB converter of 400 W.

Original language	English
Title of host publication	2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1408-1413
Number of pages	6
ISBN (Electronic)	9781728103952
DOIs	https://doi.org/10.1109/ECCE.2019.8912223
Publication status	Published - 2019 Sept
Event	11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019 - Baltimore, United States Duration: 2019 Sept 29 → 2019 Oct 3

Publication series

Name	2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019

Conference

Conference	11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019
Country/Territory	United States
City	Baltimore
Period	19/9/29 → 19/10/3

Bibliographical note

Funding Information:
ACKNOWLEDGMENT This work was supported in part by the National Research Foundation of Korea funded by the Korea government under Grant 2016R1E1A1A-02920095 and in part by the Korea Electric Power Corporation under Grant R18XA06-80.

Publisher Copyright:
© 2019 IEEE.

All Science Journal Classification (ASJC) codes

Mechanical Engineering
Control and Optimization
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1109/ECCE.2019.8912223

Cite this

Lee, S., Lee, J., Khan, U. A., & Park, J. W. (2019). Novel Switching Control Method for Synchronous Rectifier of Phase-Shifted Full-Bridge Converter in Light-Load Conditions. In 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019 (pp. 1408-1413). [8912223] (2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2019.8912223

Lee, Sunho ; Lee, Junhyuk ; Khan, Usman Ali et al. / Novel Switching Control Method for Synchronous Rectifier of Phase-Shifted Full-Bridge Converter in Light-Load Conditions. 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019. Institute of Electrical and Electronics Engineers Inc., 2019. pp. 1408-1413 (2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019).

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title = "Novel Switching Control Method for Synchronous Rectifier of Phase-Shifted Full-Bridge Converter in Light-Load Conditions",

abstract = "This paper proposes the new switching control method for the synchronous rectifier (SR) of phase-shifted full-bridge (PSFB) converter in light-load conditions, where it usually operates in discontinuous conduction mode (DCM) to reduce the effective duty ratio and core loss caused by reverse current. However, it has the problem that the current flows through the body diode instead of the channel of SR. This causes undesirable conduction loss. The proposed switching control method of SR reduces the conduction loss by optimizing its turn-on time to minimize the conduction ranges of body diode without an auxiliary circuit. In particular, its boundary condition and loss calculation is mathematically analyzed. Then, its practical effectiveness is verified by experimental tests based on hardware implementation for the PSFB converter of 400 W.",

author = "Sunho Lee and Junhyuk Lee and Khan, {Usman Ali} and Park, {Jung Wook}",

note = "Funding Information: ACKNOWLEDGMENT This work was supported in part by the National Research Foundation of Korea funded by the Korea government under Grant 2016R1E1A1A-02920095 and in part by the Korea Electric Power Corporation under Grant R18XA06-80. Publisher Copyright: {\textcopyright} 2019 IEEE.; 11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019 ; Conference date: 29-09-2019 Through 03-10-2019",

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Lee, S, Lee, J, Khan, UA & Park, JW 2019, Novel Switching Control Method for Synchronous Rectifier of Phase-Shifted Full-Bridge Converter in Light-Load Conditions. in 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019., 8912223, 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019, Institute of Electrical and Electronics Engineers Inc., pp. 1408-1413, 11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019, Baltimore, United States, 19/9/29. https://doi.org/10.1109/ECCE.2019.8912223

Novel Switching Control Method for Synchronous Rectifier of Phase-Shifted Full-Bridge Converter in Light-Load Conditions. / Lee, Sunho; Lee, Junhyuk; Khan, Usman Ali et al.

2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019. Institute of Electrical and Electronics Engineers Inc., 2019. p. 1408-1413 8912223 (2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019).

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

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AB - This paper proposes the new switching control method for the synchronous rectifier (SR) of phase-shifted full-bridge (PSFB) converter in light-load conditions, where it usually operates in discontinuous conduction mode (DCM) to reduce the effective duty ratio and core loss caused by reverse current. However, it has the problem that the current flows through the body diode instead of the channel of SR. This causes undesirable conduction loss. The proposed switching control method of SR reduces the conduction loss by optimizing its turn-on time to minimize the conduction ranges of body diode without an auxiliary circuit. In particular, its boundary condition and loss calculation is mathematically analyzed. Then, its practical effectiveness is verified by experimental tests based on hardware implementation for the PSFB converter of 400 W.

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Lee S, Lee J, Khan UA, Park JW. Novel Switching Control Method for Synchronous Rectifier of Phase-Shifted Full-Bridge Converter in Light-Load Conditions. In 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019. Institute of Electrical and Electronics Engineers Inc. 2019. p. 1408-1413. 8912223. (2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019). doi: 10.1109/ECCE.2019.8912223

Novel Switching Control Method for Synchronous Rectifier of Phase-Shifted Full-Bridge Converter in Light-Load Conditions

Abstract

Publication series

Conference

Bibliographical note

All Science Journal Classification (ASJC) codes

Access to Document

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