| US 11,817,805 B2 | ||
| Brushless motor control | ||
| Prasad Kulkarni, Bengaluru (IN); Sameer Pradeep Kulkarni, Bangalore (IN); and Krushal Shah, Dallas, TX (US) | ||
| Assigned to Texas Instruments Incorporated, Dallas, TX (US) | ||
| Filed by TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US) | ||
| Filed on Oct. 29, 2021, as Appl. No. 17/514,804. | ||
| Prior Publication US 2023/0134551 A1, May 4, 2023 | ||
| Int. Cl. H02P 21/00 (2016.01); H02P 21/22 (2016.01) | ||
| CPC H02P 21/22 (2016.02) | 20 Claims |
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1. An apparatus operable to drive a motor, comprising:
driver circuitry adapted to be coupled to the motor; and processing logic coupled to the driver circuitry and operable to:
determine an expected current for controlling the motor;
reduce a reference current upon which the motor is controlled from a first value to a second value at an exponential rate;
determine that a measured current of the motor is approximately equal to the expected current; and
responsive to determining that the measured current of the motor is approximately equal to the expected current, provide a control signal to the driver circuitry based on the expected current to the motor to control the motor to operate according to closed loop control.
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