- Patent Title: Linear hall device based field oriented control motor drive system
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Application No.: US15615951Application Date: 2017-06-07
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Publication No.: US10447186B2Publication Date: 2019-10-15
- Inventor: Stephen John Fedigan , Anuj Jain , David Patrick Magee
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Michael A. Davis, Jr.; Charles A. Brill; Frank D. Cimino
- Main IPC: H02K29/08
- IPC: H02K29/08 ; H02P6/16 ; H02P21/06 ; G01R33/07 ; H02P25/03

Abstract:
A motor control system for a permanent magnet synchronous motor (PMSM) uses two linear Hall devices to produce a first signal indicative of a strength of a first magnetic field component produced by a set of rotor magnets and to simultaneously produce a second signal indicative of a strength of second magnetic field component produced by the rotor magnets that is approximately orthogonal to the first magnetic field component. An angular position and angular velocity of the rotor is calculated based on the first signal and the second signal. A plurality of phase signals is produced based on the calculated angular position and angular velocity. Current in a plurality of field windings of the motor is controlled using the plurality of phase signals.
Public/Granted literature
- US20170272011A1 Linear Hall Device Based Field Oriented Control Motor Drive System Public/Granted day:2017-09-21
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