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

^*Corresponding author for this work

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › 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.

Original language	English
Title of host publication	2011 26th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2011
Number of pages	7
Publication date	13 May 2011
Pages	593-599
Article number	5744656
ISBN (Print)	9781424480845
DOIs	https://doi.org/10.1109/APEC.2011.5744656
Publication status	Published - 13 May 2011
Externally published	Yes
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
Country/Territory	United States
City	Fort Worth, TX
Period	06/03/2011 → 10/03/2011
Sponsor	Power Sources Manufacturers Association, IEEE Power Electronics Society, IEEE Industry Applications Society, Solara, Inc., Northrup Grumman

Series	IEEE International Conference on Cloud Computing Technology and Science (CloudCom)

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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.",

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

year = "2011",

month = may,

day = "13",

doi = "10.1109/APEC.2011.5744656",

language = "English",

isbn = "9781424480845",

series = "IEEE International Conference on Cloud Computing Technology and Science (CloudCom)",

pages = "593--599",

booktitle = "2011 26th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2011",

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 2011 26th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2011., 5744656, IEEE International Conference on Cloud Computing Technology and Science (CloudCom), pp. 593-599, 26th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2011, Fort Worth, TX, United States, 06/03/2011. 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.
2011 26th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2011. 2011. p. 593-599 5744656 (IEEE International Conference on Cloud Computing Technology and Science (CloudCom)).

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

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AU - Chung, Henry

AU - Ioinovici, Adrian

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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.

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Wang H, Chung H, Ioinovici A. Analysis and optimized design of a new dc-dc converter with asymmetrical voltage distribution for stepping down 1500 V to 48 V. In 2011 26th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2011. 2011. p. 593-599. 5744656. (IEEE International Conference on Cloud Computing Technology and Science (CloudCom)). 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

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