Efficiency Optimization of Phase-Shift Full-Bridge through Adaptive Dead-Time and Burst-Mode at Very Light Load

Lei Sun; Xiangjun Zhang; Boyu Liu; Shuo Wang; Yijie Wang; Dianguo Xu

doi:10.1109/ICEMS.2019.8922110

Efficiency Optimization of Phase-Shift Full-Bridge through Adaptive Dead-Time and Burst-Mode at Very Light Load

Lei Sun
, Xiangjun Zhang
, Boyu Liu
, Shuo Wang
, Yijie Wang
, Dianguo Xu

School of Electrical Engineering and Automation, Harbin Institute of Technology

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

3 Scopus citations

Abstract

In the traditional phase-shift full-bridge converter, the dead-time is calculated under a pre-set load condition, which leads to more body diodes conduction loss of the switches when the load is heavy and the loss of ZVS when the load is light. Therefore, an adaptive dead-time strategy of efficiency improvement for PSFB converter is proposed in this paper, which can adaptively adjust dead-time based on the relationship between the load current and dead-time. By the proposed strategy, the efficiency of the PSFB converter can be improved at both light and heavy load conditions without additional power devices. In addition, the efficiency can be significantly improved by burst-mode at very light load.

Original language	English
Title of host publication	2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781728133980
DOIs	https://doi.org/10.1109/ICEMS.2019.8922110
State	Published - Aug 2019
Externally published	Yes
Event	22nd International Conference on Electrical Machines and Systems, ICEMS 2019 - Harbin, China Duration: 11 Aug 2019 → 14 Aug 2019

Publication series

Name	2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019

Conference

Conference	22nd International Conference on Electrical Machines and Systems, ICEMS 2019
Country/Territory	China
City	Harbin
Period	11/08/19 → 14/08/19

Keywords

adaptive dead-time
burst-mode
phase-shift full-bridge (PSFB)
zero-voltage-switching (ZVS)

Access to Document

10.1109/ICEMS.2019.8922110

Cite this

Sun, L., Zhang, X., Liu, B., Wang, S., Wang, Y., & Xu, D. (2019). Efficiency Optimization of Phase-Shift Full-Bridge through Adaptive Dead-Time and Burst-Mode at Very Light Load. In 2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019 Article 8922110 (2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICEMS.2019.8922110

Sun, Lei ; Zhang, Xiangjun ; Liu, Boyu et al. / Efficiency Optimization of Phase-Shift Full-Bridge through Adaptive Dead-Time and Burst-Mode at Very Light Load. 2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019. Institute of Electrical and Electronics Engineers Inc., 2019. (2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019).

@inproceedings{29b11fc3848147dd81006d17e88494db,

title = "Efficiency Optimization of Phase-Shift Full-Bridge through Adaptive Dead-Time and Burst-Mode at Very Light Load",

abstract = "In the traditional phase-shift full-bridge converter, the dead-time is calculated under a pre-set load condition, which leads to more body diodes conduction loss of the switches when the load is heavy and the loss of ZVS when the load is light. Therefore, an adaptive dead-time strategy of efficiency improvement for PSFB converter is proposed in this paper, which can adaptively adjust dead-time based on the relationship between the load current and dead-time. By the proposed strategy, the efficiency of the PSFB converter can be improved at both light and heavy load conditions without additional power devices. In addition, the efficiency can be significantly improved by burst-mode at very light load.",

keywords = "adaptive dead-time, burst-mode, phase-shift full-bridge (PSFB), zero-voltage-switching (ZVS)",

author = "Lei Sun and Xiangjun Zhang and Boyu Liu and Shuo Wang and Yijie Wang and Dianguo Xu",

note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 22nd International Conference on Electrical Machines and Systems, ICEMS 2019 ; Conference date: 11-08-2019 Through 14-08-2019",

year = "2019",

month = aug,

doi = "10.1109/ICEMS.2019.8922110",

language = "英语",

series = "2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

booktitle = "2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019",

address = "美国",

}

Sun, L, Zhang, X, Liu, B, Wang, S, Wang, Y & Xu, D 2019, Efficiency Optimization of Phase-Shift Full-Bridge through Adaptive Dead-Time and Burst-Mode at Very Light Load. in 2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019., 8922110, 2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019, Institute of Electrical and Electronics Engineers Inc., 22nd International Conference on Electrical Machines and Systems, ICEMS 2019, Harbin, China, 11/08/19. https://doi.org/10.1109/ICEMS.2019.8922110

Efficiency Optimization of Phase-Shift Full-Bridge through Adaptive Dead-Time and Burst-Mode at Very Light Load. / Sun, Lei; Zhang, Xiangjun; Liu, Boyu et al.
2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019. Institute of Electrical and Electronics Engineers Inc., 2019. 8922110 (2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019).

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

TY - GEN

T1 - Efficiency Optimization of Phase-Shift Full-Bridge through Adaptive Dead-Time and Burst-Mode at Very Light Load

AU - Sun, Lei

AU - Zhang, Xiangjun

AU - Liu, Boyu

AU - Wang, Shuo

AU - Wang, Yijie

AU - Xu, Dianguo

PY - 2019/8

Y1 - 2019/8

N2 - In the traditional phase-shift full-bridge converter, the dead-time is calculated under a pre-set load condition, which leads to more body diodes conduction loss of the switches when the load is heavy and the loss of ZVS when the load is light. Therefore, an adaptive dead-time strategy of efficiency improvement for PSFB converter is proposed in this paper, which can adaptively adjust dead-time based on the relationship between the load current and dead-time. By the proposed strategy, the efficiency of the PSFB converter can be improved at both light and heavy load conditions without additional power devices. In addition, the efficiency can be significantly improved by burst-mode at very light load.

AB - In the traditional phase-shift full-bridge converter, the dead-time is calculated under a pre-set load condition, which leads to more body diodes conduction loss of the switches when the load is heavy and the loss of ZVS when the load is light. Therefore, an adaptive dead-time strategy of efficiency improvement for PSFB converter is proposed in this paper, which can adaptively adjust dead-time based on the relationship between the load current and dead-time. By the proposed strategy, the efficiency of the PSFB converter can be improved at both light and heavy load conditions without additional power devices. In addition, the efficiency can be significantly improved by burst-mode at very light load.

KW - adaptive dead-time

KW - burst-mode

KW - phase-shift full-bridge (PSFB)

KW - zero-voltage-switching (ZVS)

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AN - SCOPUS:85077109406

T3 - 2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019

BT - 2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019

PB - Institute of Electrical and Electronics Engineers Inc.

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Y2 - 11 August 2019 through 14 August 2019

ER -

Sun L, Zhang X, Liu B, Wang S, Wang Y , Xu D. Efficiency Optimization of Phase-Shift Full-Bridge through Adaptive Dead-Time and Burst-Mode at Very Light Load. In 2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019. Institute of Electrical and Electronics Engineers Inc. 2019. 8922110. (2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019). doi: 10.1109/ICEMS.2019.8922110

Efficiency Optimization of Phase-Shift Full-Bridge through Adaptive Dead-Time and Burst-Mode at Very Light Load

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