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Dive into the research topics where Masakazu Tago is active.

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Featured researches published by Masakazu Tago.


Archive | 2013

A Novel Concept of High Voltage Auxiliaries and its Feasibility Study on Blower Motors

Satoshi Shiraki; Hiroyasu Kudo; Masakazu Tago; Akira Yamada; Shigeki Takahashi; Atsuyuki Hiruma

Hybrid/Electric Vehicles are expected to be one of the solutions for energy and environmental problems. Up to Now, low power automotive electronics have operated under a battery voltage of 12 V and a large current of more than 10 A. Because of this high current, the power electronic circuits cause substantial losses of power through wire harnesses, a DC/DC converter, semiconductors, and so on. In this paper, we have proposed a novel concept of high voltage auxiliaries, which replaces the 12 V loads with the high voltage loads driven directly by the high voltage battery. It is assured that the power efficiency of the high voltage test system is as high as 94 %, which is at least 10 % higher than that of conventional 12 V blower motor systems.


Archive | 2007

Motor-generator control system

Masahiko Osada; Makoto Taniguchi; Hiroaki Ishikawa; Kanji Takeuchi; Masakazu Tago


Archive | 2010

POWER CONVERTER FOR ELECTRIC ROTATING MACHINE

Taizo Kondo; Masakazu Tago; Harumi Horihata


Archive | 2012

Insulation failure diagnosis apparatus and method of diagnosing insulation failure

Masakazu Tago; Atsuyuki Hiruma; Hiroyasu Kudo


Archive | 2012

Vehicle-mounted system and insulation failure diagnosis unit

Masakazu Tago; Atsuyuki Hiruma


Archive | 2015

POWER CONVERTING DEVICE AND POWER CONVERTING SYSTEM

Masakazu Tago; Harumi Horihata; Hideaki Nakayama


Archive | 2012

VEHICLE POWER SUPPLY APPARATUS

Yoshitomo Takeuchi; Atsuyuki Hiruma; Masakazu Tago


Archive | 2010

DRIVING FORCE CONTROLLING APPARATUS FOR VEHICLE

Koji Murakami; Hiroshi Sato; Sachio Toyora; Makoto Taniguchi; Masakazu Tago


Archive | 2013

POWER CONVERSION APPARATUS INCLUDING A PLURALITY OF POWER CONVERSION CIRCUITS AND FILTER CIRCUIT SHARED THEREBY

Masakazu Tago; Atsuyuki Hiruma


Archive | 2012

POWER CONVERSION APPARATUS HAVING CASING ACCOMMODATED WITH A PLURALITY OF CIRCUIT BOARDS

Shinji Usami; Masakazu Tago; Atsuyuki Hiruma

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