公开(公告)号：US20230134551A1

公开(公告)日：2023-05-04

申请号：US17514804

申请日：2021-10-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Prasad KULKARNI ,  Sameer Pradeep KULKARNI ,  Krushal SHAH

IPC: H02P21/22

Abstract: In some examples, an apparatus operable to drive a motor includes driver circuitry adapted to be coupled to the motor and processing logic coupled to the driver circuitry. The processing logic is 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.

公开(公告)号：US20230004516A1

公开(公告)日：2023-01-05

申请号：US17363106

申请日：2021-06-30

Applicant: Texas Instruments Incorporated

Inventor： Ganapathi HEGDE ,  Krushal SHAH ,  Mayank GARG ,  Luis Eduardo OSSA ,  Vashist BIST

IPC: G06F13/42

Abstract: A synchronous serial bus peripheral circuit includes a peripheral identification (ID) register and a state machine circuit. The state machine circuit is coupled to the peripheral ID register, and is configured to transmit a status value based on a peripheral ID field of data received via the receiver shift register equaling a value stored in the peripheral ID register.

公开(公告)号：US20210328536A1

公开(公告)日：2021-10-21

申请号：US16849680

申请日：2020-04-15

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Krushal SHAH ,  Mayank GARG ,  Ganapathi HEGDE

IPC: H02P27/08 ,  H02M7/5387 ,  H02P6/28

Abstract: A system includes a motor and a motor controller coupled to the motor. The motor controller includes a current sense circuit configured to: receive a first phase current sense measurement on a first measurement path; receive the first phase current sense measurement on a second measurement path; receive a second phase current measurement on the first measurement path; receive the second phase current on the second measurement path; average the first phase current sense measurement on the first measurement path with the first phase current sense measurement on the second path; and average the second phase current sense measurement on the first measurement path with the second phase current sense measurement on the second path.