Invention Grant
- Patent Title: Control method for three-phase dc brush less motor, control device, and image forming device
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Application No.: US15181633Application Date: 2016-06-14
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Publication No.: US10020760B2Publication Date: 2018-07-10
- Inventor: Yuta Tachibana , Katsuhide Sakai , Yasuhiro Koide , Yuhei Tatsumoto
- Applicant: KONICA MINOLTA, INC.
- Applicant Address: JP Chiyoda-ku, Tokyo
- Assignee: Konica Minolta, Inc.
- Current Assignee: Konica Minolta, Inc.
- Current Assignee Address: JP Chiyoda-ku, Tokyo
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: JP2015-124396 20150622
- Main IPC: H02K29/12
- IPC: H02K29/12 ; H02P6/15 ; H02P6/16 ; H02P6/22 ; G03G15/00

Abstract:
A control method for a three-phase DC brushless motor including a rotor that includes a plurality of magnetic poles and that is rotatable, a stator that includes a plurality of magnetic field generation parts to generate a magnetic field to be a driving source of the rotor, and a sensor to detect a magnetic pole of the rotor which pole passes through a first position in the stator is provided, the method including: detecting in which the sensor detects a first magnetic pole of the rotor which pole passes through the first position; estimating, based on a result of the detection of the first magnetic pole, time until the first magnetic pole reaches a second position in the stator; and controlling the plurality of magnetic field generation parts in such a manner that a suitable magnetic field is generated when the first magnetic pole passes through the second position.
Public/Granted literature
- US20160373034A1 CONTROL METHOD FOR THREE-PHASE DC BRUSHLESS MOTOR, CONTROL DEVICE, AND IMAGE FORMING DEVICE Public/Granted day:2016-12-22
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