Invention Grant
- Patent Title: Motor control device
-
Application No.: US17598857Application Date: 2020-04-16
-
Publication No.: US11716043B2Publication Date: 2023-08-01
- Inventor: Kazuki Irisawa
- Applicant: MITSUBA Corporation
- Applicant Address: JP Gunma
- Assignee: MITSUBA Corporation
- Current Assignee: MITSUBA Corporation
- Current Assignee Address: JP Gunma
- Agency: JCIPRNET
- Priority: JP 19079067 2019.04.18
- International Application: PCT/JP2020/016647 2020.04.16
- International Announcement: WO2020/213664A 2020.10.22
- Date entered country: 2021-09-27
- Main IPC: H02P27/08
- IPC: H02P27/08 ; B60J5/06 ; H02P3/08 ; H02P6/08 ; H02P23/00

Abstract:
A motor control device including a PWM control part is provided. The PWM control part has a two-phase complementary PWM control part, and when driving opening and closing of an opening/closing body, PWM-controls upper switching elements and lower switching elements of three phases in a three-phase inverter circuit based on an energization mode that sequentially switches among energized phases, which are two of the three phases, and a non-energized phase, which is a remaining one phase. The two-phase complementary PWM control part, in one of the energized phases, controls one of the upper switching element and the lower switching element by a PWM signal, and controls the other by a complementary PWM signal having a polarity opposite to the PWM signal, and, in the non-energized phase, controls one of the upper switching element and the lower switching element to be off, and controls the other by the complementary PWM signal.
Public/Granted literature
- US20220182003A1 MOTOR CONTROL DEVICE Public/Granted day:2022-06-09
Information query