Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
EE |
2012-01-25 10:45 |
Nagasaki |
|
DPWM-POL with a fast response technique Satoshi Inada, Kenji Mii, Yoichi Ishizuka, Hirofumi Matsuo (Nagasaki Univ) EE2011-33 |
[more] |
EE2011-33 pp.13-18 |
EE |
2011-11-18 11:30 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
A Novel Multi-Input DC-DC Converter with High Power Efficiency Ken Hirakida, Masayuki Suetomi, Daisuke Ueda, Tsubasa Ito (Nagasaki Univ.), Wengzong Lin (Minjiang Univ.), Hirofumi Matsuo (Nagasaki Univ.) EE2011-26 |
This paper deals with the multi-input DC-DC converter with high power efficiency. A novel full-bridge type zero voltage... [more] |
EE2011-26 pp.13-17 |
EE |
2011-11-18 14:00 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
High Frequency Isolation Circuit with High Efficiency for the High DC Voltage Power Feeding System Daisuke Imamichi, Masayuki Suetomi, Shinji Matsumoto, Daisuke Ueda, Jong-Ruey Yang, Tsubasa Ito (Nagasaki Univ.), Wengzong Lin (Minjiang Univ.), Hirofumi Matsuo (Nagasaki Univ.) EE2011-29 |
Recently, the high voltage DC feeding system has been researched and developed to save electrical energy and to make use... [more] |
EE2011-29 pp.31-35 |
EE |
2011-11-18 14:30 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Novel DC Switch and Socket for High Voltage DC Power Feeding Systems Shinji Matsumoto, Masayuki Suetomi, Daiki Kawahara, Tsubasa Ito (Nagasaki Univ.), Wengzong Lin (Minjiang Univ.), Hirofumi Matsuo (Nagasaki Univ.) EE2011-30 |
This paper presents a novel and reliable DC switch, and socket, in which the arc does not occur when they are turned-on ... [more] |
EE2011-30 pp.37-42 |
EE, IEE-SPC |
2011-07-29 11:40 |
Hokkaido |
|
A consideration of power efficiency improvement in the full bridge LLC DC-DC converter
-- Using the voltage doubler rectifier -- Hisashi Kato (Tabuchi Electric), Hirofumi Matsuo, Tsubasa Ito, Shuhei Kawazu, Daiki Kawahara, Satoshi Motomura, Ryota Hamaguchi (Nagasaki Univ.) EE2011-12 |
[more] |
EE2011-12 pp.79-83 |
EE, IEE-SPC |
2011-07-29 12:05 |
Hokkaido |
|
A Bidirectional AC-DC Converter with High Power Efficiency and High Power Factor Using Novel FPGA Control Circuit Masayuki Suetomi, Gary Yang, Shuhei Kawazu, Ryota Nakashima, Tsubasa Ito, Hirofumi Matsuo (Nagasaki Univ.) EE2011-13 |
[more] |
EE2011-13 pp.85-89 |
EE |
2009-11-27 11:30 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
A Proposed Technique for PFC-Less Power LED Drive Circuit Toshihiro Akiyama, Yoichi Ishizuka, Hirofumi Matsuo (Nagasaki Univ.) EE2009-32 |
Lately, the light emitting diode (LED) has been drawing attention because of its high performances. Because LED is DC dr... [more] |
EE2009-32 pp.19-23 |
EE |
2009-11-27 13:30 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Power Loss Reduction of a Multi-Oscillated Current Resonant Type DC-DC Converter Tadahiko Sato (Fuji Electric Systems/Nagasaki Univ.), Hirofumi Matsuo (Nagasaki Univ.), Hiroyuki Ota (Fuji Electric Systems) EE2009-34 |
A switching power supply system has been required for small size, low noise and low cost, which is employed extremely in... [more] |
EE2009-34 pp.31-35 |
EE |
2009-11-27 14:00 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Method to change autonomously the number of multiple DC-DC converters Masayuki Yamadaya (Fuji Electric Device Systems/Nagasaki Univ.), Hirofumi Matsuo (Nagasaki Univ.) EE2009-35 |
A control method to change autonomously the number of parallel driven DC-DC converter is proposed. In order to improve e... [more] |
EE2009-35 pp.37-41 |
EE |
2009-11-27 14:30 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Novel Composite Resonance DC-DC Converter with voltage Doubler Rectifier Hisatsugu Kato (Tabuchi Ele), Hirofumi Matsuo (Nagasaki Univ), Masaki Eguchi (Sharp), Yukitaka Sakamoto, Masaki Nakaishi (Tabuchi Ele) |
[more] |
|
EE |
2009-10-09 15:40 |
Tokyo |
|
The digital control circuit for on-board power supply without A/D converters Yusuke Yamada, Fumitoshi Hirose, Yoichi Ishizuka, Hirofumi Matsuo (Nagasaki Univ.) EE2009-28 |
[more] |
EE2009-28 pp.55-60 |
EE |
2008-11-20 14:00 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Some verifications about Delay Time of the Proposed DPWM Controlled POL Yusuke Yamada, Mariko Nishi, Yoichi Ishizuka, Hirofumi Matsuo (Nagasaki Univ.) EE2008-49 |
[more] |
EE2008-49 pp.29-34 |
EE |
2008-10-03 13:00 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
An output voltage sensing technique for digital controlled isolated SMPS Fumiya Nagano, Yoichi Ishizuka, Hirofumi Matsuo (Nagasaki University), Masaoki Sekine (Origin ELECTRIC CO.,LTD) EE2008-38 |
Digital controlled switching mode power supplies are spreading. However, digital control inevitably increases cost thus ... [more] |
EE2008-38 pp.17-22 |
EE |
2008-10-03 15:10 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
An Analysis of a Power LED Drive Circuit with a Low Input Current Harmonic Distortion Toshihiro Akiyama, Yoichi Ishizuka, Hirofumi Matsuo (Nagasaki Univ) EE2008-42 |
Lately, the light emitting diode (LED) has been drawing attention because of its high performances. And it has come to b... [more] |
EE2008-42 pp.41-46 |
EE |
2008-10-03 15:40 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
An Analysis of Constant-Current Bi-directional DC-DC Converter with Digital Control Hiroshige Yanagi (Nagasaki Univ.), Toshiro Hirose (Nagasaki Univ./Nishimu Electronics Industries Co., Ltd.), Yoichi Ishizuka, Hirofumi Matsuo (Nagasaki Univ.) EE2008-43 |
Lately, digital controlled switching mode power supplies has been drawing attention because of possibility of various co... [more] |
EE2008-43 pp.47-52 |
EE, CPM |
2008-02-22 09:00 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Analysis of the Radiation Noise and Efficiency Characteristics in a Quasi-resonant Converter Yosuke Asako (Nagasaki Univ.), Hironobu Shiroyama (Fuji Electric), Yoichi Ishizuka, Hirofumi Matsuo (Nagasaki Univ.) EE2007-64 CPM2007-149 |
A quasi-resonant converter using flyback topology can be realized soft-switching with relatively simple circuit. However... [more] |
EE2007-64 CPM2007-149 pp.1-6 |
EE |
2008-01-21 13:50 |
Fukuoka |
|
A control circuit composition and several characteristics of the proposed DPWM controlled POL Mariko Nishi, Yosuke Asako, Yoichi Ishizuka, Hirofumi Matsuo (Nagasaki Univ.) EE2007-46 |
The supply voltage of the integrated circuit is lowering because of the increase of power consumption by making to high ... [more] |
EE2007-46 pp.13-18 |
EE |
2008-01-21 15:40 |
Fukuoka |
|
Analyses of Multi-Oscillated Current Resonant Type DC-DC Converter Nobuhiro Higashi (Nagasaki Univ.), Ryu Araki, Tadahiko Sato, Hiroyuki Ota (Fuji Electric Device Technology Co.,Ltd), Yoichi Ishizuka, Hirofumi Matsuo (Nagasaki Univ.) EE2007-50 |
[more] |
EE2007-50 pp.35-40 |
EE |
2007-07-20 14:00 |
Yamaguchi |
|
Study on an Application of a Dispersed Power System
-- Part1: Fundamental Consideration condition -- Osamu Matsuo, Hirofumi Matsuo, Yoichi Ishizuka (Nagasaki Univ.), Hiroyuki Ota (Fuji Electric Device Tech.) EE2007-23 |
[more] |
EE2007-23 pp.89-94 |
EE |
2007-07-20 14:30 |
Yamaguchi |
|
Study on an Application of a Dispersed Power System
-- Part2: Power Supply SystemTopology -- Osamu Matsuo, Hirofumi Matsuo, Yoichi Ishizuka (Nagasaki Univ.), Kimiyoshi Kobayashi (Shindengen Electric) EE2007-24 |
[more] |
EE2007-24 pp.95-100 |