New Control Strategy for Synchronous Rectifier to Maximize Efficiency of Full-Bridge Converter with Asymmetric PWM Method

Taeho Bang; Sunho Lee; Jung Wook Park

doi:10.1007/s42835-019-00246-2

New Control Strategy for Synchronous Rectifier to Maximize Efficiency of Full-Bridge Converter with Asymmetric PWM Method

Taeho Bang, Sunho Lee, Jung Wook Park

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

This paper proposed a novel driving method for synchronous rectifier (SR) of the asymmetric pulse-width-modulation (APWM) controlled full-bridge (FB) converter. To maximize the efficiency of converter, the current flows through the channel of SR switches rather than through the body-diode of SR switches. In addition, the reverse recovery current by operation of body-diode in SR switches are dramatically reduced. The switching losses from SR are minimized by considering transients of SR switch operation. The proposed SR driving method is applied in both discontinuous (DCM) and continuous (CCM) current mode. Then, the operations of converter with proposed SR driving method are mathematically analyzed. The performances of converter are evaluated by experimental results from an implemented converter prototype with 800 W.

Original language	English
Pages (from-to)	2011-2018
Number of pages	8
Journal	Journal of Electrical Engineering and Technology
Volume	14
Issue number	5
DOIs	https://doi.org/10.1007/s42835-019-00246-2
Publication status	Published - 2019 Sept 1

Bibliographical note

Funding Information:
This work was supported in part by the Power Generation and Electricity Delivery Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) funded by the Ministry of Trade, Industry and Energy, Republic of Korea (Grant No. 20171220100330) and in part by “Human Resources Program in Energy Technology” of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry and Energy, Republic of Korea (Grant No. 20174030204540).

Funding Information:
This work was supported in part by the Power Generation and Electricity Delivery Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) funded by the Ministry of Trade, Industry and Energy, Republic of Korea (Grant No. 20171220100330) and in part by ?Human Resources Program in Energy Technology? of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry and Energy, Republic of Korea (Grant No. 20174030204540).

Publisher Copyright:
© 2019, The Korean Institute of Electrical Engineers.

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

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10.1007/s42835-019-00246-2

Cite this

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title = "New Control Strategy for Synchronous Rectifier to Maximize Efficiency of Full-Bridge Converter with Asymmetric PWM Method",

abstract = "This paper proposed a novel driving method for synchronous rectifier (SR) of the asymmetric pulse-width-modulation (APWM) controlled full-bridge (FB) converter. To maximize the efficiency of converter, the current flows through the channel of SR switches rather than through the body-diode of SR switches. In addition, the reverse recovery current by operation of body-diode in SR switches are dramatically reduced. The switching losses from SR are minimized by considering transients of SR switch operation. The proposed SR driving method is applied in both discontinuous (DCM) and continuous (CCM) current mode. Then, the operations of converter with proposed SR driving method are mathematically analyzed. The performances of converter are evaluated by experimental results from an implemented converter prototype with 800 W.",

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note = "Funding Information: This work was supported in part by the Power Generation and Electricity Delivery Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) funded by the Ministry of Trade, Industry and Energy, Republic of Korea (Grant No. 20171220100330) and in part by “Human Resources Program in Energy Technology” of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry and Energy, Republic of Korea (Grant No. 20174030204540). Funding Information: This work was supported in part by the Power Generation and Electricity Delivery Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) funded by the Ministry of Trade, Industry and Energy, Republic of Korea (Grant No. 20171220100330) and in part by ?Human Resources Program in Energy Technology? of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry and Energy, Republic of Korea (Grant No. 20174030204540). Publisher Copyright: {\textcopyright} 2019, The Korean Institute of Electrical Engineers.",

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N2 - This paper proposed a novel driving method for synchronous rectifier (SR) of the asymmetric pulse-width-modulation (APWM) controlled full-bridge (FB) converter. To maximize the efficiency of converter, the current flows through the channel of SR switches rather than through the body-diode of SR switches. In addition, the reverse recovery current by operation of body-diode in SR switches are dramatically reduced. The switching losses from SR are minimized by considering transients of SR switch operation. The proposed SR driving method is applied in both discontinuous (DCM) and continuous (CCM) current mode. Then, the operations of converter with proposed SR driving method are mathematically analyzed. The performances of converter are evaluated by experimental results from an implemented converter prototype with 800 W.

AB - This paper proposed a novel driving method for synchronous rectifier (SR) of the asymmetric pulse-width-modulation (APWM) controlled full-bridge (FB) converter. To maximize the efficiency of converter, the current flows through the channel of SR switches rather than through the body-diode of SR switches. In addition, the reverse recovery current by operation of body-diode in SR switches are dramatically reduced. The switching losses from SR are minimized by considering transients of SR switch operation. The proposed SR driving method is applied in both discontinuous (DCM) and continuous (CCM) current mode. Then, the operations of converter with proposed SR driving method are mathematically analyzed. The performances of converter are evaluated by experimental results from an implemented converter prototype with 800 W.

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New Control Strategy for Synchronous Rectifier to Maximize Efficiency of Full-Bridge Converter with Asymmetric PWM Method

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