Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Hiroaki Ishihara"'
Autor:
Shusuke Kawai, Takeshi Ueno, Hiroaki Ishihara, Satoshi Takaya, Koutaro Miyazaki, Kohei Onizuka, Hiroki Ishikuro
Publikováno v:
IEEE Transactions on Power Electronics. 38:7079-7091
Autor:
Hiroaki Ishihara, Toru Esaki
Publikováno v:
Japanese Journal of Radiological Technology. 77:1153-1164
PURPOSE Damage to shielding sheets on X-ray protective clothing may be a cause of increased radiation exposure. To prevent increased radiation exposure, periodic quality control of shielding sheets is needed. For quality management, a record of the s
Autor:
Satoshi Takaya, Hiroaki Ishihara, Shusuke Kawai, Koutaro Miyazaki, Kohei Onizuka, Takeshi Ueno
Publikováno v:
2021 IEEE Energy Conversion Congress and Exposition (ECCE).
A fully integrated load adaptive digital gate driver is proposed for high-speed and dependable SiC applications. It breaks the trade-off between surge/ringing and switching loss over a wide load range of $0 \sim 8\mathrm{A}$ by selecting the gate pat
Autor:
Kohei Onizuka, Hiroaki Ishihara
Publikováno v:
ISSCC
An up-to-date gate control technique for an advanced power converter with highspeed switching devices requires bidirectional, responsive and independent multiple communication, including gate PWM signal, monitoring and configuration signals for power
Publikováno v:
ISSCC
Increased switching frequency of power devices for power electronics allows for compact and lightweight circuit implementations for variety of applications, including power factor corrections, DC/DC converters, and motor drive inverters. In particula
Autor:
Hideaki Majima, Hiroaki Ishihara, Katsuyuki Ikeuchi, Toshiyuki Ogawa, Yuichi Sawahara, Tatsuhiro Ogawa, Satoshi Takaya, Kohei Onizuka, Osamu Watanabe
Publikováno v:
Japanese Journal of Applied Physics. 61:SC1052
A cascoded GaN half-bridge with a wide-band galvanically isolated current sensor is proposed. A 650 V depletion-mode GaN field-effect transistor is switched by a low-propagation-delay gate driver in active-mode. The standby and active modes are switc
Autor:
Masaaki Ishida, Masatoshi Suzuki, Tetsu Shijo, Hiroaki Ishihara, Yasuhiro Kanekiyo, Fumi Moritsuka, Koji Ogura, Shuichi Obayashi, Kenichirou Ogawa
Publikováno v:
IEEJ Transactions on Industry Applications. 138:384-391
Publikováno v:
Journal of Thermal Science and Technology, Vol 19, Iss 1, Pp 24-00014-24-00014 (2024)
Thermal management using solid–solid phase change materials (PCMs) is gaining attention as a viable technology for improving the reliability of smart devices, such as smartphones and tablets. This technology relies on the latent heat of PCMs to lev
Externí odkaz:
https://doaj.org/article/99ec3c6840ac4838b791c1b0db724edf
Autor:
Shuichi Obayashi, Masaaki Ishida, Fumi Moritsuka, Hiroaki Ishihara, Tetsu Shijo, Yasuhiro Kanekiyo, Koji Ogura, Masatoshi Suzuki, Kenichirou Ogawa
Publikováno v:
2017 IEEE Applied Power Electronics Conference and Exposition (APEC).
Wireless charging technology for heavy-duty vehicles, such as electric buses, has been actively investigated with a view to accelerating deployment of an important form of eco-friendly transportation. We have been developing a wireless power transfer
Autor:
Shigehito Saigusa, Hiroaki Ishihara, Osamu Watanabe, Masahiro Hosoya, Shoji Otaka, Kohei Onizuka
Publikováno v:
IEEE Journal of Solid-State Circuits. 47:1820-1827
A series combining transformer(SCT)-based, watt-level 1.9 GHz linear CMOS power amplifier with an on-chip linearizer is demonstrated. Proposed compact, predistortion-based linearizer is embedded in the two-stage PA to compensate AM-PM distortion of t