US 11,916,496 B2
Motor controller and a method for controlling a motor
Prasad Kulkarni, Bengaluru (IN); and Venkata Pavan Mahankali, Bangalore (IN)
Assigned to TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed by TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed on Jun. 30, 2021, as Appl. No. 17/363,571.
Prior Publication US 2023/0006585 A1, Jan. 5, 2023
Int. Cl. H02P 21/00 (2016.01); H02P 21/18 (2016.01); H02P 21/22 (2016.01)
CPC H02P 21/18 (2016.02) [H02P 21/22 (2016.02); H02P 2207/05 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A motor controller operable to control a motor, the motor having a first terminal and the motor controller comprising:
an angular velocity transmission path having an input and an output;
a current generator having a velocity-torque input, an angular position input, and a motor drive output, the velocity-torque input coupled to the output of the angular velocity transmission path, wherein the current generator is configured to provide a motor drive signal to each winding of the motor;
an angular velocity feedback path coupled between the first terminal and a first location on the angular velocity transmission path, the first location coupled between the input and the output of the angular velocity transmission path;
a current feedback path coupled between the first terminal and a second location on the angular velocity transmission path, the second location disposed between the first location on the angular velocity transmission path and the velocity-torque input of the current generator; and
a first switching circuitry disposed between the first location and the second location on the angular velocity transmission path, the first switching circuitry having a first input switching terminal coupled to the input of the angular velocity transmission path, a second input switching terminal coupled to a forced target current, and an output switching terminal coupled to the velocity-torque input of the current generator.