Invention Grant
- Patent Title: System and method of increasing resolution of position feedback for motor control
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Application No.: US17322025Application Date: 2021-05-17
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Publication No.: US11888430B2Publication Date: 2024-01-30
- Inventor: John A. Backman , Bryan Radke
- Applicant: Magnetek, Inc.
- Applicant Address: US WI Menomonee Falls
- Assignee: Magnetek, Inc.
- Current Assignee: Magnetek, Inc.
- Current Assignee Address: US WI Menomonee Falls
- Agency: Boyle Fredrickson, S.C.
- Main IPC: B66B1/30
- IPC: B66B1/30 ; H02P6/15

Abstract:
A motor drive receives a position feedback signal from an encoder operatively connected to the motor. The motor drive executes a speed regulator module on a first periodic interval to achieve desired operation of the motor, and the motor drive executes an additional module at a second periodic interval, occurring more frequently than the first periodic interval, to increase the resolution of the position feedback. The position feedback signal is provided as or converted to counts. The motor drive maintains a first counter with a running total of each count received as well as a second counter which generates a higher resolution value than the first counter. During each second periodic interval the motor drive increments the high-resolution counter by the number of actual counts detected within the corresponding first periodic interval. This high-resolution counter is used by the speed regulator to obtain desired operation of the motor.
Public/Granted literature
- US20220368252A1 System and Method of Increasing Resolution of Position Feedback for Motor Control Public/Granted day:2022-11-17
Information query
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