A ZCS bi-directional flyback dc/dc converter using the leakage inductance of the coupled inductor

Henry S. H. Chung; S. Y. R. Hui; K. M. Chan; C. T. Chung

doi:10.1109/APEC.2000.822808

A ZCS bi-directional flyback dc/dc converter using the leakage inductance of the coupled inductor

Henry S. H. Chung
, S. Y. R. Hui
, K. M. Chan
, C. T. Chung

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

9 Citations (Scopus)

Abstract

This paper describes a zero-current-switched (ZCS) bi-directional flyback dc/dc converter. The methodology is based on replacing the output diode in the existing flyback converter with a controlled switch, acting as either a synchronous rectifier or a main power control switch in the corresponding power flow operation. By adding an auxiliary winding in the coupled inductor, a bi-directional switch, and a capacitor, the hard-switched design can be converted into a soft-switched one. The technique utilizes the leakage inductance in the flyback coupled inductor to achieve the ZCS of all switches in both power flow directions, leading to reduced switching losses, stresses, and electromagnetic interference. No extra active or passive voltage clamp circuits are required to suppress the voltage stress on the switches. The operating principles of the converter and experimental results are presented. © 2000 IEEE

Original language	English
Title of host publication	APEC 2000 - Fifteenth Annual IEEE Applied Power Electronics Conference and Exposition
Publisher	IEEE
Pages	979-985
Volume	2
ISBN (Print)	0-7803-5864-3
DOIs	https://doi.org/10.1109/APEC.2000.822808
Publication status	Published - Feb 2000
Event	15th Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2000) - Fairmont Hotel, New Orleans, United States Duration: 6 Feb 2000 → 10 Feb 2000

Conference

Conference	15th Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2000)
Place	United States
City	New Orleans
Period	6/02/00 → 10/02/00

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@inproceedings{0ed8f6170c784373b69dc726055a1372,

title = "A ZCS bi-directional flyback dc/dc converter using the leakage inductance of the coupled inductor",

abstract = "This paper describes a zero-current-switched (ZCS) bi-directional flyback dc/dc converter. The methodology is based on replacing the output diode in the existing flyback converter with a controlled switch, acting as either a synchronous rectifier or a main power control switch in the corresponding power flow operation. By adding an auxiliary winding in the coupled inductor, a bi-directional switch, and a capacitor, the hard-switched design can be converted into a soft-switched one. The technique utilizes the leakage inductance in the flyback coupled inductor to achieve the ZCS of all switches in both power flow directions, leading to reduced switching losses, stresses, and electromagnetic interference. No extra active or passive voltage clamp circuits are required to suppress the voltage stress on the switches. The operating principles of the converter and experimental results are presented. {\textcopyright} 2000 IEEE",

author = "Chung, \{Henry S. H.\} and Hui, \{S. Y. R.\} and Chan, \{K. M.\} and Chung, \{C. T.\}",

year = "2000",

month = feb,

doi = "10.1109/APEC.2000.822808",

language = "English",

isbn = "0-7803-5864-3",

volume = "2",

pages = "979--985",

booktitle = "APEC 2000 - Fifteenth Annual IEEE Applied Power Electronics Conference and Exposition",

publisher = "IEEE",

address = "United States",

note = "15th Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2000) ; Conference date: 06-02-2000 Through 10-02-2000",

}

Chung, HSH , Hui, SYR, Chan, KM & Chung, CT 2000, A ZCS bi-directional flyback dc/dc converter using the leakage inductance of the coupled inductor. in APEC 2000 - Fifteenth Annual IEEE Applied Power Electronics Conference and Exposition. vol. 2, IEEE, pp. 979-985, 15th Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2000), New Orleans, United States, 6/02/00. https://doi.org/10.1109/APEC.2000.822808

A ZCS bi-directional flyback dc/dc converter using the leakage inductance of the coupled inductor. / Chung, Henry S. H.; Hui, S. Y. R.; Chan, K. M. et al.
APEC 2000 - Fifteenth Annual IEEE Applied Power Electronics Conference and Exposition. Vol. 2 IEEE, 2000. p. 979-985.

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

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T1 - A ZCS bi-directional flyback dc/dc converter using the leakage inductance of the coupled inductor

AU - Chung, Henry S. H.

AU - Hui, S. Y. R.

AU - Chan, K. M.

AU - Chung, C. T.

PY - 2000/2

Y1 - 2000/2

N2 - This paper describes a zero-current-switched (ZCS) bi-directional flyback dc/dc converter. The methodology is based on replacing the output diode in the existing flyback converter with a controlled switch, acting as either a synchronous rectifier or a main power control switch in the corresponding power flow operation. By adding an auxiliary winding in the coupled inductor, a bi-directional switch, and a capacitor, the hard-switched design can be converted into a soft-switched one. The technique utilizes the leakage inductance in the flyback coupled inductor to achieve the ZCS of all switches in both power flow directions, leading to reduced switching losses, stresses, and electromagnetic interference. No extra active or passive voltage clamp circuits are required to suppress the voltage stress on the switches. The operating principles of the converter and experimental results are presented. © 2000 IEEE

AB - This paper describes a zero-current-switched (ZCS) bi-directional flyback dc/dc converter. The methodology is based on replacing the output diode in the existing flyback converter with a controlled switch, acting as either a synchronous rectifier or a main power control switch in the corresponding power flow operation. By adding an auxiliary winding in the coupled inductor, a bi-directional switch, and a capacitor, the hard-switched design can be converted into a soft-switched one. The technique utilizes the leakage inductance in the flyback coupled inductor to achieve the ZCS of all switches in both power flow directions, leading to reduced switching losses, stresses, and electromagnetic interference. No extra active or passive voltage clamp circuits are required to suppress the voltage stress on the switches. The operating principles of the converter and experimental results are presented. © 2000 IEEE

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DO - 10.1109/APEC.2000.822808

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BT - APEC 2000 - Fifteenth Annual IEEE Applied Power Electronics Conference and Exposition

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ER -

A ZCS bi-directional flyback dc/dc converter using the leakage inductance of the coupled inductor

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