公开(公告)号：WO2022272158A1

公开(公告)日：2022-12-29

申请号：PCT/US2022/035051

申请日：2022-06-27

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： KULKARNI, Prasad

IPC: H02P21/24 ,  H02P23/22 ,  H02P6/182 ,  H02M1/126 ,  H02P27/14 ,  H02P27/16

Abstract: A motor controller integrated circuit (IC) includes a storage device (120) containing software (125). The IC also includes a processor core (110) coupled to the storage device (120). The processor core (110) has an output adapted to be coupled to a motor (M). The processor core (110) is configured to execute the software (125) to implement a resonant controller at a frequency that is a harmonic of a speed of the motor (M).

公开(公告)号：WO2023278369A1

公开(公告)日：2023-01-05

申请号：PCT/US2022/035204

申请日：2022-06-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： KULKARNI, Prasad ,  MAHANKALI, Venkata, Pavan ,  HEGDE, Ganapathi

IPC: H02P21/24 ,  H02P27/12 ,  H02P6/182 ,  H02P21/0003 ,  H02P21/10 ,  H02P21/18 ,  H02P21/22 ,  H02P2203/03 ,  H02P27/06

Abstract: A motor controller integrated circuit (IC) includes a storage device (120) containing software, and a processor core (110). The processor core (110) has an output adapted to be coupled to a motor (M). The processor core (110) is configured to execute the software to operate the motor in an open-loop control, calculate first and second orthogonal components of a back electromotive force (BEMF), calculate a total BEMF value, and determine that the first orthogonal component is within a threshold of the total BEMF value. The processor core (110) is further configured to, responsive to the first orthogonal component being within the threshold of the total BEMF value, operate the motor (M) in a closed-loop control.

公开(公告)号：WO2023278532A1

公开(公告)日：2023-01-05

申请号：PCT/US2022/035460

申请日：2022-06-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： KULKARNI, Prasad ,  MAHANKALI, Venkata, Pavan

IPC: H02P6/28 ,  H02P6/18 ,  H02P21/24 ,  H02P21/18 ,  H02P21/22 ,  H02P2207/05

Abstract: A motor controller (104) is operable to control a motor (102). The motor (102) has a first terminal (144) and the motor controller (104) includes an angular velocity transmission path (115) having an input and an output. A current generator (124) includes a velocity -torque input (125), an angular position input (127), and a motor drive output (142). The velocity-torque input (125) is coupled to the output of the angular velocity transmission path (115). An angular velocity feedback path (148) is coupled between the first terminal (144) and a first location (149) on the angular velocity transmission path (115). The first location (149) is between the input and the output of the angular velocity transmission path (115). A current feedback path (152) is coupled between the first terminal (144) and a second location (151) on the angular velocity transmission path (115). The second location (151) is disposed between the first location (149) on the angular velocity transmission path (115) and the velocity -torque input (125) of the current generator (124).