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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| EE | 2007-01-25 15:50 |
Nagasaki | Nagasaki prefectural art museum | Analysis of efficiency and noise in quasi resonant converter Shiroyama (Nagasaki Univ./Fuji Electric Devic Technologye), Yosuke Asako, Yoichi Ishizuka, Hirofumi Matsuo (Nagasaki Univ.)  EE2006-39 |
A quasi-resonant converter which uses flyback topology can realize soft switching with relatively simple circuit. Howeve... [more] | EE2006-39 pp.13-18 |
| EE | 2006-11-10 11:30 |
Tokyo | Static Analysis of Multi-Oscillated Current Resonant Type DC-DC Converter Ryu Araki, Osamu Matsuo (Nagasaki Univ.), Hiroyuki Ota (FHPS), Yoichi Ishizuka, Mineo Tuji, Hirofumi Matsuo (Nagasaki Univ.) EE2006-31 |
[more] | EE2006-31 pp.13-18 |
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| EE | 2006-07-14 09:30 |
Tokyo | Control Strategy of Digitally Controlled DC-DC Converter with Static Model Koji Tanaka, Fujio Kurokawa (Nagasaki Univ.), (Choryo Control System), Hirofumi Matsuo (Nagasaki Univ.) EE2006-17 |
The digitally controlled dc-dc converter with static model reference has been proposed to improve the dynamic characteri... [more] | EE2006-17 pp.47-52 |
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| EE, IEE-IEA | 2006-05-19 11:30 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | A Servo Method Using DSP in The Optical Disk Read and Write System
-- How to combine higher processing speed and higher ability -- Shigeaki Wachi, Hirofumi Matsuo, Yoichi Ishizuka (Nagasaki Univ.) EE2006-4 |
Digital servo system that combined DSP and PWM driver is used widely in the area of the data storage devices. The adva... [more] |
EE2006-4 pp.19-24 |
| EE | 2006-02-17 09:25 |
Kumamoto | Transient Response of Digitally Controlled DC-DC Converter with Static Model Reference Koji Tanaka, Fujio Kurokawa (Nagasaki Univ.), (Choryo Control System), Hirofumi Matsuo (Nagasaki Univ.) |
The digitally controlled dc-dc converter with static model reference has been proposed to improve the dynamic characteri... [more] | EE2005-70 pp.55-60 |
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| EE | 2006-02-17 10:15 |
Kumamoto | Static Characteristic of LED Drive Circuit for Lighting with Constant Illuminance/Current Control Masahiro Nishikawa, Yoichi Ishizuka, Hirofumi Matsuo (Nagasaki Univ.) |
Lately, the light-emitting diode (LED) has been drawing attention as a state-of-the-art illuminator. Single LEDs are ver... [more] | EE2005-72 pp.67-72 |
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| EE, CPM | 2006-01-20 15:45 |
Tokyo | Fundamental considerations of a high responce with Pulse Rate Control Ichirou Nishikawa, Yoichi Ishizuka, Hirofumi Matsuo (Nagasaki Univ.), Masao Ueno (Sanken Electric co.) |
From the view point of Load(POL) designs, the fast response for load transient and high power efficiency are important f... [more] | EE2005-57 CPM2005-181 pp.59-66 |
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| EE, CPM | 2006-01-20 16:10 |
Tokyo | A Fast Response DC-DC Converter with DPWM Control Akira Ichinose, Yoichi Ishizuka, Hirofumi Matsuo (Nagasaki Univ.) |
A Fast Response DC-DC Converter with Digital Pulse Width Modulation(DPWM) Control is proposed. Proposed DPWM control cir... [more] | EE2005-58 CPM2005-182 pp.67-71 |
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| EE, CPM | 2006-01-20 16:35 |
Tokyo | A Soft Switching Circuit of the AC-DC Converter with Four Winding-Reactor Ryu Araki, Osamu Matsuo (Nagasaki University), Hiroyuki Ota (FHPS), Hirofumi Matsuo (Nagasaki University) |
Recently, it is demanded for low input current distortion and high efficiency. A novel soft-switching circuit of the AC-... [more] | EE2005-59 CPM2005-183 pp.73-79 |
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| EE | 2005-09-09 16:15 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Output Characteristics of DC-DC Converter using Minimum phase FIR Filter Wataru Okamoto, Fujio Kurokawa, Hirofumi Matsuo (Nagasaki Univ.) |
[more] | EE2005-37 pp.29-34 |
| EE | 2005-02-09 10:00 |
Fukuoka | A Drive Circuit for LED with Constant-Current Control Kosuke Morihori, Yoichi Ishizuka, Hirofumi Matsuo (Ngasaki Univ.) |
Recently, white LED with an excellent feature such as low power consumption and long life is paid to attention as a new ... [more] | EE2004-68 pp.13-19 |
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| EE | 2005-02-09 13:10 |
Fukuoka | Performance Characteristics of the Digitally Controlled DC-DC Converter with Static Model Reference Joe Hirose, Fujio Kurokawa, Hirofumi Matsuo (Nagasaki University) |
[more] | EE2004-72 pp.39-43 |
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| EE | 2005-02-09 14:50 |
Fukuoka | Characteristic Analysis of Multiple-Input Buck-Boost Converter in Discontinuous Current Mode Jun Furuta, Fujio Kurokawa, Hirofumi Matsuo (Nagasaki Univ.) |
In the power-supply unit using the clean energy such as the solar array,wind generator and fuel cell,it is important not... [more] | EE2004-76 pp.63-68 |
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| EE | 2004-09-10 15:35 |
Tokyo | kikai-Shinko-Kaikan Bldg. | A Current Compensation Circuit for Large Load Transient of VRM Koichi Ito, Yoichi Ishizuka, Hirofumi Matsuo (Nagasaki Univ.) |
A new current-compensation circuit system for VRM is proposed. The proposed circuit consists of MOSFETs, resistors and c... [more] | EE2004-33 pp.23-28 |
| EE | 2004-09-10 16:35 |
Tokyo | kikai-Shinko-Kaikan Bldg. | Regulation characteristics of DC-DC converter using DSP Hideaki Tanaka, Fujio Kurokawa, Hirofumi Matsuo (Nagasaki Univ) |
This paper presents the regulation characteristics of dc-dc converter using the digital low-pass filter. First, the rela... [more] | EE2004-35 pp.35-40 |
| EE, IEE-IEA | 2004-07-23 13:00 |
Hokkaido | Hokkaido University | Operation Mode Analysis of the Circuit for Reducing Current Harmonics in AC Line of Soft-Switching AC-DC Converter Using a Four-Winding-Reactor Hiroyuki Ota, Takashi Kamishinbara (Nagasaki Univ.), Osamu Matsuo (Energy and Electronics Laboratory Co.,Ltd.), Hirofumi Matsuo (Nagasaki Univ.) |
Soft-switching AC-DC converter with four-winding-reactor is proposed, in which IEC 61000-3-2 class D is satisfied in the... [more] | EE2004-25 pp.37-44 |
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