Invention Grant
- Patent Title: Motor controller with drive-signal conditioning
- Patent Title (中): 电机控制器带驱动信号调理
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Application No.: US14247955Application Date: 2014-04-08
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Publication No.: US09431934B2Publication Date: 2016-08-30
- Inventor: Frederic Bonvin , Ezio Galbiati
- Applicant: STMICROELECTRONICS, INC. , STMICROELECTRONICS S.r.l.
- Applicant Address: US TX Coppell IT Agrate Brianza
- Assignee: STMICROELECTRONICS, INC.,STMICROELECTRONICS S.r.l.
- Current Assignee: STMICROELECTRONICS, INC.,STMICROELECTRONICS S.r.l.
- Current Assignee Address: US TX Coppell IT Agrate Brianza
- Agency: Seed IP Law Group PLLC
- Main IPC: H02P6/10
- IPC: H02P6/10 ; G11B19/20 ; H02P6/08 ; H02P6/18

Abstract:
An embodiment of a motor controller includes a motor driver and a signal conditioner. The motor driver is operable to generate a motor-coil drive signal having a first component at a first frequency, and the signal conditioner is coupled to the motor driver and is operable to alter the first component. For example, if the first component of the motor-coil drive signal causes the motor to audibly vibrate (e.g., “whine”), then the signal conditioner may alter the amplitude or phase of the first component to reduce the vibration noise to below a threshold level.
Public/Granted literature
- US20140217938A1 MOTOR CONTROLLER WITH DRIVE-SIGNAL CONDITIONING Public/Granted day:2014-08-07
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