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Patent Searching and Data


Title:
POWER CONVERSION DEVICE, MOTOR DRIVE UNIT, AND ELECTRIC POWER STEERING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/056046
Kind Code:
A1
Abstract:
Provided is a power conversion device 100 comprising: a first inverter 120 connected to one end of the windings M1, M2, M3 of each phase of a motor 200; a second inverter 130 connected to the other end of the windings of each phase; and a switching circuit 110 used to configure a neutral point in the windings of each phase on the first inverter side. At least one of a plurality of switching elements included in the first inverter has a first current capacity, and a plurality of switching elements included in the second inverter have a second current capacity that is greater than the first current capacity.

Inventors:
OHASHI,Hiromitsu (338 Kuzetonoshiro-cho Minami-ku, Kyoto-sh, Kyoto 05, 〒6018205, JP)
Application Number:
JP2017/031882
Publication Date:
March 29, 2018
Filing Date:
September 05, 2017
Export Citation:
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Assignee:
NIDEC CORPORATION (338 Kuzetonoshiro-cho, Minami-ku Kyoto-sh, Kyoto 05, 〒6018205, JP)
International Classes:
H02M7/48; B62D5/04; H02P27/06
Domestic Patent References:
WO2012098585A12012-07-26
Foreign References:
JP2014054094A2014-03-20
JPH0799959B21995-10-25
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