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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 32  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
EE, IEE-SPC 2021-07-19
10:55
Online Online Load-Independent Class-E Inverter with Frequency Modulation Control
Yutaro Komiyama, Kien Nguyen (Chiba Univ.), Taichi Mishima, Yuki Ito, Takeshi Uematsu (Omron Corp.), Hiroo Sekiya (Chiba Univ.) EE2021-8
This paper proposes the frequency-modulation controlled load-independent class-E inverter. The main idea is to apply the... [more] EE2021-8
pp.6-11
EE, IEE-SPC
(Joint)
2020-03-05
14:29
Nagasaki
(Cancelled but technical report was issued)
GPU-accelerated Design Method of WPT System for Maximizing Transfer Efficiency under the Restriction of Coil Sizes
Wenqi Zhu, Kien Nguyen, Hiroo Sekiya (Chiba Univ.) EE2019-80
For inductive coupled wireless power transfer systems, it is significant to maximize the transfer efficiency by optimiza... [more] EE2019-80
pp.31-36
MW 2019-11-14
17:05
Okinawa Minami Daido Villa. Tamokuteki Koryu Center Multifunctional CRLH Transmission Line Stubs for Compact Class-E/Inverse-Class-E Power Amplifiers
Hirotaka Asami, Shinichi Tanaka (Shibaura Inst. of Tech.) MW2019-109
This report presents CRLH transmission line (TL) stubs for realizing compact high-efficiency class-E / inverse class-E p... [more] MW2019-109
pp.53-58
EE, IEE-SPC 2019-07-25
09:30
Hiroshima   SiC MOSFET Class-E Inverter with a Class-Φ High-Speed Driver
Haruma Yogi, Xiuqin Wei (Chiba Tech), Hiroo Sekiya (Chiba Univ.), Takashi Hikihara (Kyoto Univ.) EE2019-25
This paper presents a design challenge of a SiC MOSFET class-E inverter with a class-$Phi $ high-speed driver. The drive... [more] EE2019-25
pp.49-52
EE 2019-01-16
14:50
Kumamoto KCIC Proposal of load independent class E^-1 inverter
Yuta Ozawa (Chiba Univ.), Xiuqin Wei (CIT), Hiroo Sekiya (Chiba Univ.) EE2018-45
This paper proposes a load-independent class-E−1 inverter. By deriving the circuit operation with its analysis, this pap... [more] EE2018-45
pp.43-48
EE 2019-01-17
12:55
Kumamoto KCIC A Study on Current-source/Voltage-source Dual-Mode Non-isolated Class-E2 DC-DC Converter with Pulse-Density-Modulation
Kenta Fujii, Tomokazu Mishima (KU) EE2018-54
GaN-HFET class-E power conversion technology is suitable for high frequency power conversion in the MHz band. The pulse ... [more] EE2018-54
pp.97-102
MW
(2nd)
2018-06-27
- 2018-06-29
Overseas KMITL, Bangkok, Thailand Power Control Unit for E-Class Power Oscillator of Wireless Power Transfer
Darupon Rattanarungngam, Kittisak Phaebua, Titipong Lertwiriyaprapa (KMUTNB)
This paper presents a power control unit for e-class power oscillator of 6.78 MHz wireless power transfer (WPT). the E-c... [more]
EE 2018-01-29
13:15
Oita Satellite Campus Oita [Poster Presentation] Analysis of wireless power transfer system with asymmetrical duty-cycle controlled class-D ZVS inverter
Shohei Mita, Hiroo Sekiya (Chiba Univ.) EE2017-50
This paper presents a wireless power transfer system with the asymmetrical duty-cycle controlled class-D zero-voltage sw... [more] EE2017-50
pp.47-52
ICD, CPSY, CAS 2017-12-14
14:30
Okinawa Art Hotel Ishigakijima A design of a Class-E Power Oscillator with a Parallel Resonant Load to Realize Frequency Tuning for Stable Wireless Transmission Power
Yoshimitsu Yamashita, Kazuyuki Wada (Meiji Univ.) CAS2017-74 ICD2017-62 CPSY2017-71
A design method of a class-E power oscillator with a parallel resonant load to realize frequency tuning for stable wirel... [more] CAS2017-74 ICD2017-62 CPSY2017-71
pp.57-62
EE 2016-11-28
13:30
Tokyo Kikai-Shinko-Kaikan Bldg. [Poster Presentation] Characteristics comparison of class-E^2 and class-D-E wireless power transfer system
Takumi Noda, Takumi Murayama, Hiroo Sekiya (Chiba Univ.) EE2016-38
The class-D and the class-E inverter can be achieved the high-power conversion efficiency at high frequencies.
Therefor... [more]
EE2016-38
pp.45-50
EE, WPT
(Joint)
2016-10-07
11:20
Kyoto   Experimental Evaluations of Thinned-out and PDM Controlled Class-E Rectifier
Akane Iwasaki, Tomoharu Nagashima, Hiroo Sekiya (Chiba Univ.) EE2016-26
This paper presents a design of the closed-loop thinned-out controlled class-E rectifier. It is possible to realize both... [more] EE2016-26
pp.43-48
RCS, CCS, SR, SRW
(Joint)
2016-03-04
13:15
Tokyo Tokyo Institute of Technology A design and its experimental verification of optimal input waveforms for an injection-locked class-E oscillator
Youjie Ouyang, Yoji Yabe, Isao Nishikawa, Hisa-Aki Tanaka (UEC), Tomoharu Nagashima, Hiroo Sekiya (Chiba Uni.) CCS2015-71
We design the optimal input waveforms that maximize locking ranges in an injection-locked Class-E oscillator, by using a... [more] CCS2015-71
pp.23-28
EE, WPT, IEE-SPC
(Joint) [detail]
2015-07-07
14:00
Kyoto   A Comprehensive Design Method of Inductively Coupled Wireless PowerTransfer System for Maximizing Overall Efficiency
Takumi Noda, Tomoharu Nagashima, Hiroo Sekiya (Chiba Univ.) WPT2015-41
For development of inductive coupling wireless power transfer (WPT) systems, it is important to consider a overall effic... [more] WPT2015-41
pp.31-36
EE, WPT
(Joint)
2014-11-19
10:25
Kyoto Doshisha University A Novel 6.78MHz Experimental Results of a ZVS Push-pull Class-E Direct-Current-Resonance Wireless Power Transfer
Toru Yoshikawa (Doshisha Univ.), Tatsuya Hosotani (Murata Manufacturing), Koji Fujiwara (Doshisha Univ.) WPT2014-58
The direct current resonance is a new technology that makes it possible to convert DC electric energy into electromagnet... [more] WPT2014-58
pp.43-48
EMCJ, WPT
(Joint)
2014-01-31
13:25
Saga Saga Univ. Analytical design for resonant inductively coupled wireless power transfer system with class-E^2 DC-DC converter
Tomoharu Nagashima, Kazuhide Inoue (Chiba Univ.), Xiuqin Wei (Fukuoka Univ.), Hiroo Sekiya (Chiba Univ.)
This paper presents a resonant inductive coupling wireless power transfer (RIC-WPT) system with a class-E^2 dc-dc conver... [more]
MW, AP
(Joint)
2013-09-12
13:25
Tokyo NHK Science Tech. Research Lab. Fundamental limit and its realization for injection-locking technique -- Applications --
Yoji Yabe, Shusaku Iikura, Kazuki Nakada, Tomoyuki Morikawa, Temuulen Enkhee, Ryohei Nagatome, Hisa-Aki Tanaka (UEC) MW2013-89
Since injection-locking improves frequency stability in the oscillator, its researches have been steadily progressed for... [more] MW2013-89
pp.5-10
EE, WPT, IEE-SPC
(Joint) [detail]
2013-07-25
13:35
Tokyo Kikai-Shinko-Kaikan Bldg. A Novel Analysis of Direct Current Resonance Class-E Multi-Resonant ZVS Wireless Power Transfer System Operated in 10MHz Range
Toru Yoshikawa (Doshisha Univ.), Tatsuya Hosotani (Murata Manufacturing), Koji Fujiwara (Doshisha Univ.) EE2013-9
We present a novel analysis of Direct Current Resonance class -E multi-resonant ZVS wireless power transfer system ope... [more] EE2013-9
pp.7-12
MW 2013-05-31
15:00
Kyoto Ryukoku Univ. A 2.1GHz-Band 20W GaN Power Amplifier with Class-F Circuit Considering Parasitic Elements
Keigo Nakatani, Toshio Ishizaki (Ryukoku Univ.) MW2013-24
In this paper, a design method of Class-F power amplifier considering parasitic elements will be shown. Recently, many s... [more] MW2013-24
pp.83-87
NLP 2013-05-28
11:00
Fukuoka Event hall, Central Library, Fukuoka University Design of class-E inverter with inductive impedance inverter for achieving zero voltage switching at any load resistance
Tomoharu Nagashima (Chiba Univ.), Xiuqin Wei, Tadashi Suetsugu (Fukuoka Univ.), Hiroo Sekiya (Chiba Univ.) NLP2013-22
This paper presents a design of the class-E inverter with an inductive impedance inverter for achieving zero voltage swi... [more] NLP2013-22
pp.71-75
NLP 2013-03-14
13:25
Chiba Nishi-Chiba campus, Chiba Univ. Analysis of Class-E_M Amplifier Taking into Acount Drain Current Fall Time
Zhicai Zhang, Tomoharu Nagashima (Chiba Univ.), Xiuqin Wei (Fukuoka Univ.), Hiroo Sekiya (Chiba Univ.) NLP2012-151
The class EM amplifier is composed of class E amplifier and auxiliary circuit output harmonic. The class EM amplifier ac... [more] NLP2012-151
pp.37-42
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