Analysis and optimized design of a new dc-dc converter with asymmetrical voltage distribution for stepping down 1500 V to 48 V

Huai Wang; Henry Chung; Adrian Ioinovici

doi:10.1109/APEC.2011.5744656

Analysis and optimized design of a new dc-dc converter with asymmetrical voltage distribution for stepping down 1500 V to 48 V

Huai Wang, Henry Chung, Adrian Ioinovici

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

Abstract

A proposed converter for a particular class of highvoltage applications features an asymmetrical voltage distribution between the primary-side switch pairs, allowing for improved utilization of switching devices and extended softswitching load range. A hybrid zero-voltage-switching and zero-current-switching (ZVS-ZCS) scheme gives soft-commutations of the two switch pairs from very light load to full load conditions. The properties of the voltage distributions on switch pairs and dc conversion ratio of the converter are explored. The trade-off conditions of soft-switching range, duty-cycle gain with ZCS, current stresses on switching devices, energy circulation and duty-cycle loss due to ZVS are investigated to allow for an optimum design. The theory is verified by a 2 kW, 1500/48 V experimental prototype. © 2011 IEEE.

Original language	English
Title of host publication	Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Pages	593-599
DOIs	https://doi.org/10.1109/APEC.2011.5744656
Publication status	Published - 2011
Event	26th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2011 - Fort Worth, TX, United States Duration: 6 Mar 2011 → 10 Mar 2011

Conference

Conference	26th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2011
Place	United States
City	Fort Worth, TX
Period	6/03/11 → 10/03/11

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@inproceedings{b8b966b73700467fa89afc762caac96a,

title = "Analysis and optimized design of a new dc-dc converter with asymmetrical voltage distribution for stepping down 1500 V to 48 V",

abstract = "A proposed converter for a particular class of highvoltage applications features an asymmetrical voltage distribution between the primary-side switch pairs, allowing for improved utilization of switching devices and extended softswitching load range. A hybrid zero-voltage-switching and zero-current-switching (ZVS-ZCS) scheme gives soft-commutations of the two switch pairs from very light load to full load conditions. The properties of the voltage distributions on switch pairs and dc conversion ratio of the converter are explored. The trade-off conditions of soft-switching range, duty-cycle gain with ZCS, current stresses on switching devices, energy circulation and duty-cycle loss due to ZVS are investigated to allow for an optimum design. The theory is verified by a 2 kW, 1500/48 V experimental prototype. {\textcopyright} 2011 IEEE.",

author = "Huai Wang and Henry Chung and Adrian Ioinovici",

year = "2011",

doi = "10.1109/APEC.2011.5744656",

language = "English",

isbn = "9781424480845",

pages = "593--599",

booktitle = "Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC",

note = "26th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2011 ; Conference date: 06-03-2011 Through 10-03-2011",

}

Wang, H, Chung, H & Ioinovici, A 2011, Analysis and optimized design of a new dc-dc converter with asymmetrical voltage distribution for stepping down 1500 V to 48 V. in Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC., 5744656, pp. 593-599, 26th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2011, Fort Worth, TX, United States, 6/03/11. https://doi.org/10.1109/APEC.2011.5744656

Analysis and optimized design of a new dc-dc converter with asymmetrical voltage distribution for stepping down 1500 V to 48 V. / Wang, Huai; Chung, Henry; Ioinovici, Adrian.
Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC. 2011. p. 593-599 5744656.

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

TY - GEN

T1 - Analysis and optimized design of a new dc-dc converter with asymmetrical voltage distribution for stepping down 1500 V to 48 V

AU - Wang, Huai

AU - Chung, Henry

AU - Ioinovici, Adrian

PY - 2011

Y1 - 2011

N2 - A proposed converter for a particular class of highvoltage applications features an asymmetrical voltage distribution between the primary-side switch pairs, allowing for improved utilization of switching devices and extended softswitching load range. A hybrid zero-voltage-switching and zero-current-switching (ZVS-ZCS) scheme gives soft-commutations of the two switch pairs from very light load to full load conditions. The properties of the voltage distributions on switch pairs and dc conversion ratio of the converter are explored. The trade-off conditions of soft-switching range, duty-cycle gain with ZCS, current stresses on switching devices, energy circulation and duty-cycle loss due to ZVS are investigated to allow for an optimum design. The theory is verified by a 2 kW, 1500/48 V experimental prototype. © 2011 IEEE.

AB - A proposed converter for a particular class of highvoltage applications features an asymmetrical voltage distribution between the primary-side switch pairs, allowing for improved utilization of switching devices and extended softswitching load range. A hybrid zero-voltage-switching and zero-current-switching (ZVS-ZCS) scheme gives soft-commutations of the two switch pairs from very light load to full load conditions. The properties of the voltage distributions on switch pairs and dc conversion ratio of the converter are explored. The trade-off conditions of soft-switching range, duty-cycle gain with ZCS, current stresses on switching devices, energy circulation and duty-cycle loss due to ZVS are investigated to allow for an optimum design. The theory is verified by a 2 kW, 1500/48 V experimental prototype. © 2011 IEEE.

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DO - 10.1109/APEC.2011.5744656

M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 9781424480845

SP - 593

EP - 599

BT - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

T2 - 26th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2011

Y2 - 6 March 2011 through 10 March 2011

ER -

Analysis and optimized design of a new dc-dc converter with asymmetrical voltage distribution for stepping down 1500 V to 48 V

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