公开(公告)号：US10541609B2

公开(公告)日：2020-01-21

申请号：US16040805

申请日：2018-07-20

Applicant: Texas Instruments Incorporated

Inventor： Jiwei Fan ,  Mingyue Zhao ,  Huy Le Nhat Nguyen

IPC: H02M3/156 ,  H02M5/458 ,  H01F41/04 ,  H01F27/29 ,  H02M1/00

Abstract: In a power converter system, circuitry generates first and second PWM signals during a PWM cycle for controlling application of power to an inductor. Circuitry generates error signals having AC- and DC-components, the error signals being generated in response to indications of the power applied to or developed by the inductor. Circuitry generates a feedback control signal in response to the error signals. The first and second PWM signals are controlled in response to the feedback control signals.

公开(公告)号：US20210050782A1

公开(公告)日：2021-02-18

申请号：US16860511

申请日：2020-04-28

Applicant: Texas Instruments Incorporated

Inventor： Saurav Bandyopadhyay ,  Thomas Matthew LaBella ,  Huy Le Nhat Nguyen ,  Michael G. Amaro ,  Robert Allan Neidorff

IPC: H02M3/158 ,  H03K17/082 ,  G06F1/26

Abstract: A switch-mode power supply circuit includes a low-side switching transistor, a high-side switching transistor, a low-side current sensing circuit, and a gate driver circuit. The low-side current sensing circuit is coupled to the low-side switching transistor and is configured to sense a current flowing through the low-side switching transistor. The gate driver circuit is coupled to the low-side current sensing circuit and the high-side switching transistor. The gate driver circuit is configured to generate a signal having a first drive strength to switch the high-side switching transistor based on current flowing through the low-side switching transistor being less than a threshold current, and to generate a signal having a second drive strength to switch the high-side switching transistor based on current flowing through the low-side switching transistor being greater than the threshold current. The first drive strength is greater than the second drive strength.

公开(公告)号：US20180351455A1

公开(公告)日：2018-12-06

申请号：US16040805

申请日：2018-07-20

Applicant: Texas Instruments Incorporated

Inventor： Jiwei Fan ,  Mingyue Zhao ,  Huy Le Nhat Nguyen

IPC: H02M3/156 ,  H02M5/458 ,  H01F27/29 ,  H01F41/04 ,  H02M1/00

Abstract: In a power converter system, circuitry generates first and second PWM signals during a PWM cycle for controlling application of power to an inductor. Circuitry generates error signals having AC- and DC-components, the error signals being generated in response to indications of the power applied to or developed by the inductor. Circuitry generates a feedback control signal in response to the error signals. The first and second PWM signals are controlled in response to the feedback control signals.

公开(公告)号：US10734899B2

公开(公告)日：2020-08-04

申请号：US16259194

申请日：2019-01-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Jiwei Fan ,  Mingyue Zhao ,  Huy Le Nhat Nguyen

IPC: H02M3/158 ,  H02M1/14 ,  H03K7/08 ,  H03K4/50 ,  H02M1/08 ,  H03K19/20 ,  H02M1/00

Abstract: A system includes an input voltage supply and advanced current mode (ACM) converter device coupled to the input voltage supply. The ACM converter device (102) includes a pulse-skipping mode (PSM) transitions controller configured to switch between PSM and discontinuous conduction mode (DCM). The system also includes an output inductor coupled to a switch node of the ACM converter device. The system also includes an output capacitor with a first terminal coupled to the output inductor and a second terminal coupled to a ground node. The system also includes a voltage divider in parallel with the output capacitor, where the voltage divider is configured to provide a feedback voltage to the ACM converter device.

公开(公告)号：US10063143B1

公开(公告)日：2018-08-28

申请号：US15725767

申请日：2017-10-05

Applicant: Texas Instruments Incorporated

Inventor： Jiwei Fan ,  Mingyue Zhao ,  Huy Le Nhat Nguyen

IPC: G05F1/00 ,  H02M3/156 ,  H02M5/458 ,  H01F41/04 ,  H01F27/29 ,  H02M1/00

Abstract: In a power converter system, circuitry generates first and second PWM signals during a PWM cycle for controlling application of power to an inductor. Circuitry generates error signals having AC- and DC-components, the error signals being generated in response to indications of the power applied to or developed by the inductor. Circuitry generates a feedback control signal in response to the error signals. The first and second PWM signals are controlled in response to the feedback control signals.

公开(公告)号：US11552624B1

公开(公告)日：2023-01-10

申请号：US17491343

申请日：2021-09-30

Applicant: Texas Instruments Incorporated

Inventor： Taisuke Kazama ,  Saurav Bandyopadhyay ,  Tianyu Chang ,  Huy Le Nhat Nguyen

IPC: H03K4/06 ,  H03K4/94 ,  H03K5/1252

Abstract: In described examples of a ramp circuit, a first terminal of a capacitor is coupled to a ramp terminal and a second capacitor terminal is coupled to a return terminal. A charge source has an input terminal coupled to a supply terminal and a charge output terminal. A resistor has a first terminal coupled to the return terminal. A first switch is coupled between the ramp terminal and a second terminal of the resistor. A second switch is coupled between the charge output terminal and the ramp terminal.

公开(公告)号：US11552565B2

公开(公告)日：2023-01-10

申请号：US16860511

申请日：2020-04-28

Applicant: Texas Instruments Incorporated

Inventor： Saurav Bandyopadhyay ,  Thomas Matthew LaBella ,  Huy Le Nhat Nguyen ,  Michael G. Amaro ,  Robert Allan Neidorff

IPC: H02M3/158 ,  G06F1/26 ,  H03K17/082 ,  H02M1/00

Abstract: A switch-mode power supply circuit includes a low-side switching transistor, a high-side switching transistor, a low-side current sensing circuit, and a gate driver circuit. The low-side current sensing circuit is coupled to the low-side switching transistor and is configured to sense a current flowing through the low-side switching transistor. The gate driver circuit is coupled to the low-side current sensing circuit and the high-side switching transistor. The gate driver circuit is configured to generate a signal having a first drive strength to switch the high-side switching transistor based on current flowing through the low-side switching transistor being less than a threshold current, and to generate a signal having a second drive strength to switch the high-side switching transistor based on current flowing through the low-side switching transistor being greater than the threshold current. The first drive strength is greater than the second drive strength.

公开(公告)号：US20180248479A1

公开(公告)日：2018-08-30

申请号：US15725767

申请日：2017-10-05

Applicant: Texas Instruments Incorporated

Inventor： Jiwei Fan ,  Mingyue Zhao ,  Huy Le Nhat Nguyen

IPC: H02M3/156 ,  H02M5/458 ,  H01F27/29 ,  H01F41/04

CPC classification number: H02M3/156 ,  H01F27/292 ,  H01F41/04 ,  H02M5/458 ,  H02M2001/0025

Abstract: In a power converter system, circuitry generates first and second PWM signals during a PWM cycle for controlling application of power to an inductor. Circuitry generates error signals having AC- and DC-components, the error signals being generated in response to indications of the power applied to or developed by the inductor. Circuitry generates a feedback control signal in response to the error signals. The first and second PWM signals are controlled in response to the feedback control signals.