Invention Grant
- Patent Title: Power converter, motor driving unit, and electric power steering device
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Application No.: US16487862Application Date: 2018-03-05
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Publication No.: US11114969B2Publication Date: 2021-09-07
- Inventor: Hiromitsu Ohashi , Ahmad Ghaderi
- Applicant: Nidec Corporation
- Applicant Address: JP Kyoto
- Assignee: Nidec Corporation
- Current Assignee: Nidec Corporation
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett, LLP
- Priority: JPJP2017-064081 20170329
- International Application: PCT/JP2018/008277 WO 20180305
- International Announcement: WO2018/180237 WO 20181004
- Main IPC: H02P27/08
- IPC: H02P27/08 ; H02P29/024 ; B62D5/04 ; B62D6/10 ; H02H7/08 ; H02M1/32 ; H02M7/5387 ; H02P25/18 ; H02M1/00

Abstract:
A power converter includes a first inverter, a second inverter, and a switching circuit including first and second switching elements. In a state in which, in the first inverter, potentials at a first node in a high side and a second node in a low side are equal to each other, and potentials at first ends of two-phase windings of n-phase windings with n being an integer of 2 or more are equal to each other, two-phase windings are energized using two legs connected to second ends of the two-phase windings of n legs of the second inverter while performing switching operations on the first and second switching elements of the switching circuit at a predetermined duty ratio.
Public/Granted literature
- US20200244206A1 POWER CONVERTER, MOTOR DRIVING UNIT, AND ELECTRIC POWER STEERING DEVICE Public/Granted day:2020-07-30
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