T
Tadashi Takahashi
Researcher at Hitachi
Publications - 182
Citations - 1713
Tadashi Takahashi is an academic researcher from Hitachi. The author has contributed to research in topics: Signal & Voltage. The author has an hindex of 22, co-authored 182 publications receiving 1713 citations. Previous affiliations of Tadashi Takahashi include Renesas Electronics.
Papers
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Patent
Torque detecting apparatus
Hiroshi Kimura,Shotaro Naito,Kunio Miyashita,Yasuo Noto,Noboru Sugiura,Tadashi Takahashi,Hirohisa Yamamura,Seizi Yamashita,Syooichi Kawamata,Fumio Tajima,Shigeru Horikoshi +10 more
TL;DR: In this paper, the authors proposed a method for detecting load torque using angle detectors fitted with a certain spacing on a shaft which is rotated by a drive source and on the basis of a relative angular difference of angles detected by the angle detectors.
Patent
Power supply system for supplying electric power to a load through plural converters
Tadashi Takahashi,Kenichi Onda,Akihiko Kanouda,Masayoshi Sato,Hideaki Horie,Katsunori Hayashi +5 more
TL;DR: In this article, a power supply system with parallel converters connected in parallel is described, where the current of each converter is detected and each of the converters is controlled so as to match each converters to a maximum current value from among the detected current values.
Patent
Device for detecting rotation of rotary shaft and rotation controlling apparatus using the same
Ryoso Masaki,Toshiyuki Koterazawa,Kazuo Tahara,Kunio Miyashita,Yoshikazu Hoshi,Tadashi Takahashi,Shuichi Nakano +6 more
TL;DR: In this article, a rotation detecting device for a rotary shaft and a rotation controlling apparatus using this rotary detecting device is described. But the rotary torque can be obtained by calculating a difference between the rotating angles measured at two points apart from each other on the rotial shaft.
Patent
Method and apparatus for position control of an electric motor
TL;DR: In this paper, a control process and apparatus for positioning an electric motor provided with a rotation angle detector at a designated position positively at a high speed without being accompanied with hunting notwithstanding variation in the motor current and inertia of a load is presented.
Patent
Method for controlling angular position and apparatus therefor
TL;DR: In this paper, a method and apparatus for controlling the angular position of a motor by controlling the revolution of the motor in response to a given positioning command value commanding a predetermined angular position was presented.