公开(公告)号：US20220393631A1

公开(公告)日：2022-12-08

申请号：US17577093

申请日：2022-01-17

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Sivabalan Mohan ,  Venkata Pavan Mahankali ,  Prasad Kulkarni ,  Ganapathi Hegde

IPC: H02P27/08 ,  H02P3/18

Abstract: A motor control system operable to control a motor includes a motor control circuit and an inverter circuit connected to the motor control circuit and configured to connect to the motor at phase output terminals. The inverter circuit, in response to one or more output control signals indicating a deceleration instruction from the motor control circuit, implements a multi-state deceleration sequence for at least one commutation state of a commutation scheme of the motor.

公开(公告)号：US11374521B2

公开(公告)日：2022-06-28

申请号：US16900316

申请日：2020-06-12

Applicant: Texas Instruments Incorporated

Inventor： Venkata Pavan Mahankali ,  Ganapathi Hegde

IPC: H02P21/00 ,  H02P21/18 ,  H02P21/22

Abstract: A system includes: a motor having a stator and a rotor; and a pulse generation circuit coupled to the stator. The system also includes a motor controller coupled to the pulse generation circuit. The motor controller is configured to: determine inductance and resistance values of the motor based on timing parameters obtained during an initial position detection (IPD) interval; determine a rotor position based on the determined inductance and resistance values; and generate control signals for the pulse generation circuit based on the determined rotor position.

公开(公告)号：US11283387B2

公开(公告)日：2022-03-22

申请号：US16849680

申请日：2020-04-15

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Krushal Shah ,  Mayank Garg ,  Ganapathi Hegde

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

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.

公开(公告)号：US20170344052A1

公开(公告)日：2017-11-30

申请号：US15681206

申请日：2017-08-18

Applicant: Texas Instruments Incorporated

Inventor： Ganapathi Hegde

IPC: G06F1/12 ,  G06F1/06

CPC classification number: G06F1/12 ,  G06F1/06

Abstract: Systems and methods for a Dual Window Watchdog Timer (DWWDT) are described. In some embodiments, a method may include running a first counter in a first clock domain and a second counter in a second clock domain; generating an interrupt to a controller during a window open period, wherein the window open period begins in response to the first counter having reached a predetermined threshold; and at least one of: restarting the first counter if the controller restarts the second counter in response to the interrupt before the window open period ends; or issuing a system reset if the controller does not restart the second counter in response to the interrupt before the window open period ends.