{"id":840,"date":"2015-07-31T17:49:31","date_gmt":"2015-07-31T08:49:31","guid":{"rendered":"http:\/\/pemsic.eee.nagasaki-u.ac.jp\/?p=840"},"modified":"2015-07-31T17:49:31","modified_gmt":"2015-07-31T08:49:31","slug":"full-paper-five-megahertz-pwm-controlled-current-mode-resonant-dc-dc-step-down-converter-using-gan-hemts","status":"publish","type":"post","link":"https:\/\/pemsic.eee.nagasaki-u.ac.jp\/?p=840","title":{"rendered":"Full Paper: Five-Megahertz PWM-Controlled Current-Mode Resonant DC\u2013DC Step-Down Converter Using GaN-HEMTs"},"content":{"rendered":"

Five-Megahertz PWM-Controlled Current-Mode Resonant DC\u2013DC Step-Down Converter Using GaN-HEMTs <\/a><\/p>\n

\u00a0<\/a><\/p>\n

Hariya<\/span>, A.<\/a>\u00a0;\u00a0<\/span> Matsuura, K.<\/a> ; <\/span> <\/span> Yanagi, H.<\/a> ; <\/span> <\/span> Tomioka, S.<\/a> ; <\/span> <\/span> Ishizuka, Y.<\/a> ; <\/span> <\/span> Ninomiya, T.<\/a><\/h4>\n

High power efficiency and high power density are required in regulated isolated dc\u2013dc converters. In this paper, a novel pulsewidth modulation (PWM) control method that is suitable for an isolated current-mode resonant dc\u2013dc converter operated at a megahertz-level switching frequency is proposed. The output voltage with the proposed method can be regulated with no additional components at a fixed switching frequency. In addition, the zero-voltage switching (ZVS) of primary-side switches at turn on can be maintained. The principle of the proposed method and the method of the ZVS operation in the proposed method are explained. Some experiments have been performed with a 5-MHz isolated step-down dc\u2013dc converter using gallium nitride high-electron-mobility transistors; the output voltage is 12 V, and the total volume of the circuit is 16.14 \"hbox . With the proposed PWM control method, the input voltage range is 42\u201345.5 V, and the maximum load current range is 10 A at \"V_{i}=45.5 . The ZVS of the primary-side switches at turn on is confirmed in all experimental regions, and the maximum power efficiency is 89.2%.<\/p>\n

\n

Published in:<\/h3>\n

Industry Applications, IEEE Transactions on <\/a> \u00a0(Volume:51 ,\u00a0 Issue: 4 <\/a> )<\/p>\n

\n
Page(s):<\/dt>\n
3263 – 3272<\/dd>\n
ISSN :<\/dt>\n
0093-9994<\/dd>\n
DOI:<\/dt>\n
10.1109\/TIA.2015.2391439<\/a><\/dd>\n<\/dl>\n
\n
Date of Publication :<\/dt>\n
13 1\u6708 2015<\/dd>\n
Date of Current Version :<\/dt>\n
15 7\u6708 2015<\/dd>\n
Issue Date :<\/dt>\n
July-Aug. 2015<\/dd>\n
Sponsored by :<\/dt>\n
IEEE Industry Applications Society<\/a><\/dd>\n
Publisher:<\/dt>\n
IEEE<\/dd>\n<\/dl>\n<\/div>\n

NAOSITE ( Nagasaki University’s Academic Output SITE ):<\/h3>\n

Five-Megahertz PWM-Controlled Current-Mode Resonant DC\u2013DC Step-Down Converter Using GaN-HEMTs<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Five-Megahertz PWM-Controlled Current-Mo… Continue Reading →<\/a><\/p>\n","protected":false},"author":1,"featured_media":1055,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[14,21,29,33],"class_list":["post-840","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-published","tag-akinori-hariya","tag-gan","tag-smps","tag-yoichi-ishizuka"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/pemsic.eee.nagasaki-u.ac.jp\/wp-content\/uploads\/2015\/09\/07008442.jpg?fit=1400%2C1867&ssl=1","jetpack_sharing_enabled":false,"jetpack_shortlink":"https:\/\/wp.me\/p6WRmG-dy","jetpack-related-posts":[{"id":1311,"url":"https:\/\/pemsic.eee.nagasaki-u.ac.jp\/?p=1311","url_meta":{"origin":840,"position":0},"title":"AWARDED\uff1a\u91dd\u5c4b\u30002015 Excellent Student Award of the IEEE Fukuoka Section\u53d7\u8cde","author":"","date":"02\/21\/2016","format":false,"excerpt":"Mr. Akinori Hariya is awarded 2015 Excellent Stude\u2026","rel":"","context":"AWARDS","block_context":{"text":"AWARDS","link":"https:\/\/pemsic.eee.nagasaki-u.ac.jp\/?cat=2"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/pemsic.eee.nagasaki-u.ac.jp\/wp-content\/uploads\/2016\/02\/160509_IEEE-Fukuoka-Section.png?fit=1200%2C849&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/pemsic.eee.nagasaki-u.ac.jp\/wp-content\/uploads\/2016\/02\/160509_IEEE-Fukuoka-Section.png?fit=1200%2C849&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/pemsic.eee.nagasaki-u.ac.jp\/wp-content\/uploads\/2016\/02\/160509_IEEE-Fukuoka-Section.png?fit=1200%2C849&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/pemsic.eee.nagasaki-u.ac.jp\/wp-content\/uploads\/2016\/02\/160509_IEEE-Fukuoka-Section.png?fit=1200%2C849&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/pemsic.eee.nagasaki-u.ac.jp\/wp-content\/uploads\/2016\/02\/160509_IEEE-Fukuoka-Section.png?fit=1200%2C849&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":1752,"url":"https:\/\/pemsic.eee.nagasaki-u.ac.jp\/?p=1752","url_meta":{"origin":840,"position":1},"title":"Full Paper: Dr. Hariya Circuit Design Techniques for Reducing the Effects of Magnetic Flux on GaN-HEMTs in 5-MHz 100-W High Power-Density LLC Resonant DC\u2013DC Converters","author":"","date":"03\/31\/2017","format":false,"excerpt":"Circuit Design Techniques for Reducing the Effects\u2026","rel":"","context":"Published","block_context":{"text":"Published","link":"https:\/\/pemsic.eee.nagasaki-u.ac.jp\/?cat=4"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/pemsic.eee.nagasaki-u.ac.jp\/wp-content\/uploads\/2017\/04\/8c44d4eceef92dbf5704a3a2f5e9ebda.jpg?fit=900%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/pemsic.eee.nagasaki-u.ac.jp\/wp-content\/uploads\/2017\/04\/8c44d4eceef92dbf5704a3a2f5e9ebda.jpg?fit=900%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/pemsic.eee.nagasaki-u.ac.jp\/wp-content\/uploads\/2017\/04\/8c44d4eceef92dbf5704a3a2f5e9ebda.jpg?fit=900%2C1200&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/pemsic.eee.nagasaki-u.ac.jp\/wp-content\/uploads\/2017\/04\/8c44d4eceef92dbf5704a3a2f5e9ebda.jpg?fit=900%2C1200&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":1199,"url":"https:\/\/pemsic.eee.nagasaki-u.ac.jp\/?p=1199","url_meta":{"origin":840,"position":2},"title":"Presentation: Hariya, Reduction Technique of Leakage Flux Effects on GaN-HEMTs in 5 MHz \/ 100 W Isolated DC-DC Converters, APEC 2016, Mar. 24, 2016","author":"","date":"02\/06\/2016","format":false,"excerpt":"Thank you for dropping by! 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