Invention Grant
- Patent Title: Motor control device
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Application No.: US16396143Application Date: 2019-04-26
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Publication No.: US10734936B2Publication Date: 2020-08-04
- Inventor: Hiroshi Sumasu , Koichiro Matsuhisa
- Applicant: JTEKT CORPORATION
- Applicant Address: JP Osaka-shi
- Assignee: JTEKT CORPORATION
- Current Assignee: JTEKT CORPORATION
- Current Assignee Address: JP Osaka-shi
- Agency: Oliff PLC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@7243822a
- Main IPC: H02P27/08
- IPC: H02P27/08 ; H02P21/22 ; H02M7/5387

Abstract:
A motor control device includes: a noise reduction unit that sets a PWM count in units of PWM cycles for each PWM cycle in a current control cycle such that a current that flows through a frame ground because of a phase voltage for any one of three phases is canceled out with a current that flows through the frame ground because of a phase voltage for one of the two other phases in each PWM cycle in the current control cycle; and a noise canceling circuit configured to generate a current that is opposite in phase to a current that flows through the frame ground because of a phase voltage for the other of the two other phases in each PWM cycle in the current control cycle.
Public/Granted literature
- US20190341869A1 MOTOR CONTROL DEVICE Public/Granted day:2019-11-07
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