公开(公告)号：US20230028275A1

公开(公告)日：2023-01-26

申请号：US17382499

申请日：2021-07-22

Applicant: Texas Instruments Incorporated

Inventor： Srijan Rastogi ,  Mayank Garg ,  Anant Shankar Kamath

IPC: H04B3/36 ,  H03F3/45

Abstract: Universal Serial Bus (USB) repeater circuits and methods of operating the same for communicating data signals from a first pair of data terminals to a second pair of data terminals of the repeater. In a first channel, an amplifier stage in a receiver amplifies a differential signal received at the first pair of data terminals to generate a differential signal at first and second output nodes of the receiver, and a transmitting circuit transmits a differential signal at the second pair of data terminals responsive to the differential signal at the first and second output nodes of the receiver. The receiver includes a hysteresis stage that receives an offset in opposition to the differential signal at the first and second output nodes of the receiver. End-of-packet (EOP) dribble in USB communications in the HS mode is reduced by the offset at the hysteresis stage.

公开(公告)号：US20210250026A1

公开(公告)日：2021-08-12

申请号：US17174119

申请日：2021-02-11

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Win Naing Maung ,  Bharath Kumar Singareddy ,  Soumi Paul ,  Mayank Garg ,  Suzanne Mary Vining

IPC: H03K19/0185 ,  H04L7/00

Abstract: A circuit includes signal conditioner circuitry, level shifter circuitry, and state detector and controller circuitry coupled between the signal conditioner circuitry and the level shifter circuitry. The state detector and controller circuitry includes receiver circuitry and a finite state machine coupled to the receiver circuitry. The finite state machine is configured to detect a first data rate from signals, control operation of the signal conditioner circuitry responsive to detecting the first data rate, and control operation of the level shifter circuitry during a second data rate.

公开(公告)号：US11061384B2

公开(公告)日：2021-07-13

申请号：US16692674

申请日：2019-11-22

Applicant: Texas Instruments Incorporated

Inventor： Matthew David Romig ,  Mayank Garg

IPC: G05B19/414

Abstract: Methods, systems, and apparatus to facilitate multi-channel isolation is disclosed. An example apparatus includes a multiplexer including a first input terminal, a second input terminal, and an output terminal; a modulator including an input terminal and an output terminal, the input terminal of the modulator coupled to the output terminal of the multiplexer; an isolation capacitor including a first terminal and a second terminal, the first terminal of the isolation capacitor coupled to the output terminal of the modulator; a first receiver die coupled to the second terminal of the isolation capacitor; and a second receiver die coupled to the second terminal of the isolation capacitor.

公开(公告)号：US10530308B2

公开(公告)日：2020-01-07

申请号：US15934467

申请日：2018-03-23

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Shyamsunder Balasubramanian ,  Wenxiao Tan ,  Mayank Garg ,  Toru Tanaka

IPC: H03F3/04 ,  H03F1/30

Abstract: An offset drift compensation circuit for correcting offset drift that changes with temperature. In one example, offset drift compensation circuit includes a low temperature offset compensation circuit and a high temperature offset circuit. The low temperature offset compensation circuit is configured to compensate for drift in offset at a first rate below a selected temperature. The high temperature offset compensation circuit is configured to compensate for drift in offset at a second rate above the selected temperature. The first rate is different from the second rate.

公开(公告)号：US20140320045A1

公开(公告)日：2014-10-30

申请号：US13871191

申请日：2013-04-26

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： David Hernandez ,  Mayank Garg ,  David J. Baldwin ,  Brandon James Beckham

IPC: H02P25/02

CPC classification number: H02P25/032 ,  H02P6/182

Abstract: Circuits and methods for driving ERM motors are disclosed herein. An embodiment of the circuit includes an input, wherein an input signal is receivable at the input and a back EMF signal. The circuit operates in a closed loop mode when the back EMF signal is less than a lower threshold value and the difference between the value of the input signal and the back EMF signal indicates that the velocity of the motor needs to increase. The circuit operates in an open loop mode when the back EMF signal is greater than a high threshold value and the difference between the value of the input signal and the back EMF signal indicates that the velocity of the motor needs to increase.

Abstract translation: 本文公开了用于驱动ERM电动机的电路和方法。 电路的实施例包括输入，其中输入信号可在输入端接收，反馈EMF信号。 当反电动势信号小于下限阈值时，电路工作在闭环模式，而输入信号与反电动势信号之间的差值表明电动机的速度需要增加。 当反电动势信号大于高阈值时，电路工作在开环模式，输入信号和反电动势信号之间的差值表示电动机的速度需要增加。

公开(公告)号：US11528026B2

公开(公告)日：2022-12-13

申请号：US17082937

申请日：2020-10-28

Applicant: Texas Instruments Incorporated

Inventor： Mayank Garg ,  Shu-Ing Ju ,  Arun Rao ,  Wei Zhang

IPC: H03K17/687 ,  H03K17/693

Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed for a multi-level turn-off circuit. An example power delivery circuit includes a two-level turn-off circuit to be coupled to a first switch to reduce a first gate voltage of the first switch from a first voltage to a second voltage when a current flowing through the first switch is greater than an over-current threshold, the two-level turn-off circuit including a second switch, a voltage-current-voltage buffer to reduce a second gate voltage of the second switch from a third voltage to a fourth voltage, and a comparator circuit to turn off the second switch when the second gate voltage is the fourth voltage, and a driver to be coupled to the first switch to turn off the first switch when the second gate voltage is the fourth voltage.

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：US10944394B2

公开(公告)日：2021-03-09

申请号：US16360914

申请日：2019-03-21

Applicant: Texas Instruments Incorporated

Inventor： Mayank Garg

IPC: H03K17/16 ,  H03K17/082 ,  H01L27/06 ,  H01L27/02 ,  H01L29/207 ,  H01L29/167 ,  H01L29/06

Abstract: Methods, apparatus, systems and articles of manufacture are disclosed that provide an apparatus comprising: a first transistor including a first gate, a first current terminal, and a second current terminal; a second transistor including a second gate, a third current terminal, and a fourth current terminal; the first current terminal coupled to the third current terminal; the first gate coupled to the second gate and the second current terminal; a third transistor including a third gate, a fifth current terminal, and a sixth current terminal, the fifth current terminal coupled to the second current terminal, third gate coupled to a voltage reference node; and a fourth transistor including a fourth gate, a seventh current terminal and an eighth current terminal, the seventh current terminal coupled to the sixth current terminal, the fourth gate coupled to the seventh current terminal and the eighth current terminal coupled to the fourth current terminal.

公开(公告)号：US10855275B2

公开(公告)日：2020-12-01

申请号：US16399611

申请日：2019-04-30

Applicant: Texas Instruments Incorporated

Inventor： Mayank Garg ,  Shu-Ing Ju ,  Arun Rao ,  Wei Zhang

IPC: H03K17/687 ,  H03K17/693

Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed for a multi-level turn-off circuit. An example power delivery circuit includes a two-level turn-off circuit to be coupled to a first switch to reduce a first gate voltage of the first switch from a first voltage to a second voltage when a current flowing through the first switch is greater than an over-current threshold, the two-level turn-off circuit including a second switch, a voltage-current-voltage buffer to reduce a second gate voltage of the second switch from a third voltage to a fourth voltage, and a comparator circuit to turn off the second switch when the second gate voltage is the fourth voltage, and a driver to be coupled to the first switch to turn off the first switch when the second gate voltage is the fourth voltage.

公开(公告)号：US20200076425A1

公开(公告)日：2020-03-05

申请号：US16399611

申请日：2019-04-30

Applicant: Texas Instruments Incorporated

Inventor： Mayank Garg ,  Shu-Ing Ju ,  Arun Rao

IPC: H03K17/687 ,  H03K17/693

Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed for a multi-level turn-off circuit. An example power delivery circuit includes a two-level turn-off circuit to be coupled to a first switch to reduce a first gate voltage of the first switch from a first voltage to a second voltage when a current flowing through the first switch is greater than an over-current threshold, the two-level turn-off circuit including a second switch, a voltage-current-voltage buffer to reduce a second gate voltage of the second switch from a third voltage to a fourth voltage, and a comparator circuit to turn off the second switch when the second gate voltage is the fourth voltage, and a driver to be coupled to the first switch to turn off the first switch when the second gate voltage is the fourth voltage.