公开(公告)号：US20230188037A1

公开(公告)日：2023-06-15

申请号：US18065972

申请日：2022-12-14

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Antonio Priego ,  Gerhard Thiele ,  Johann-Erich Bayer ,  Mitsuyori Saito ,  Rida Assaad ,  Angelo Pereira

IPC: H02M3/158 ,  H02M1/088

CPC classification number: H02M3/158 ,  H02M1/088

Abstract: In described example, a circuit includes an error amplifier that receives a reference voltage and an output voltage, and generates an error signal. A comparator receives the error signal and a feedback signal, and generates a primary signal. A logic circuit is coupled to an output terminal of the comparator, and receives a clocking pulse. A clocking circuit is coupled to one of a first and a second output terminal of the logic circuit. The clocking circuit receives a clock signal and generates the clocking pulse. A driver circuit is coupled to the logic circuit. A switching circuit, coupled to the driver circuit, receives an input voltage and generates a switching voltage at a switching node. The switching circuit having a first switch coupled to a second switch at the switching node.

公开(公告)号：US20210376731A1

公开(公告)日：2021-12-02

申请号：US17317101

申请日：2021-05-11

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Erich-Johann Bayer ,  Gerhard Thiele ,  Antonio Priego

IPC: H02M3/158 ,  H02M1/00 ,  H03K5/24

Abstract: A circuit includes a first power converter having a first voltage input and a first output. The circuit also includes a second power converter having a second voltage input coupled to the first voltage input, a clock input, and a second output. A phase shifter is coupled between the first output and the clock input of the second power converter.

公开(公告)号：US20230308019A1

公开(公告)日：2023-09-28

申请号：US17955950

申请日：2022-09-29

Applicant: Texas Instruments Incorporated

Inventor： Antonio Priego ,  Gerhard Thiele ,  Erich-Johann Bayer

IPC: H02M3/158 ,  H03F3/345 ,  H03K19/173 ,  H03K17/687 ,  H03K17/06

CPC classification number: H02M3/158 ,  H03F3/345 ,  H03K19/173 ,  H03K17/687 ,  H03K17/063

Abstract: In a circuit for DC-DC voltage converters, an amplifier has first and second inputs coupled to a reference voltage terminal and an output voltage terminal, respectively. A comparator has first and second inputs coupled to an amplifier output and a switching terminal, respectively. A logic circuit has inputs coupled to the comparator output and a clock terminal. A driver circuit has first and second inputs coupled to first and second logic outputs, respectively. A first transistor having a first control terminal coupled to the first driver output is coupled between a supply voltage terminal and the switching terminal. A second transistor is coupled between the switching terminal and a ground terminal, and has a second control terminal coupled to the second driver output. A threshold detection circuit is configured to provide a threshold signal responsive to a current through the second transistor crossing a current threshold.

公开(公告)号：US12261529B2

公开(公告)日：2025-03-25

申请号：US17955950

申请日：2022-09-29

Applicant: Texas Instruments Incorporated

Inventor： Antonio Priego ,  Gerhard Thiele ,  Erich-Johann Bayer

IPC: H02M3/158 ,  H02M1/00 ,  H03F3/345 ,  H03K17/06 ,  H03K17/687 ,  H03K19/173

Abstract: In a circuit for DC-DC voltage converters, an amplifier has first and second inputs coupled to a reference voltage terminal and an output voltage terminal, respectively. A comparator has first and second inputs coupled to an amplifier output and a switching terminal, respectively. A logic circuit has inputs coupled to the comparator output and a clock terminal. A driver circuit has first and second inputs coupled to first and second logic outputs, respectively. A first transistor having a first control terminal coupled to the first driver output is coupled between a supply voltage terminal and the switching terminal. A second transistor is coupled between the switching terminal and a ground terminal, and has a second control terminal coupled to the second driver output. A threshold detection circuit is configured to provide a threshold signal responsive to a current through the second transistor crossing a current threshold.

公开(公告)号：US10608538B1

公开(公告)日：2020-03-31

申请号：US16258320

申请日：2019-01-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Manuel Wiersch ,  Gerhard Thiele

IPC: H02M3/158 ,  H02M1/08 ,  H03K17/687 ,  H02M3/157

Abstract: A device includes a first transistor coupled to a ground node and a current source. The first transistor includes a control terminal coupled to a reference voltage source, where the current source is coupled to an input voltage source. The device includes a second transistor coupled to the input voltage source, where the second transistor includes a control terminal coupled to the first transistor. The device includes a third transistor coupled to the second transistor, where the third transistor includes a control terminal coupled to an output voltage node. The device includes a fourth transistor coupled to the third transistor, where the fourth transistor includes a control terminal coupled to the output voltage node. The device includes a fifth transistor coupled to the fourth transistor and a resistor, where the fifth transistor includes a control terminal coupled to the fourth transistor. The resistor is coupled to the ground node.

公开(公告)号：US11784568B2

公开(公告)日：2023-10-10

申请号：US16585168

申请日：2019-09-27

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Antonio Priego ,  Gerhard Thiele ,  Manuel Wiersch ,  Johann Erich Bayer

IPC: H02M3/158 ,  H02M1/00

CPC classification number: H02M3/1582 ,  H02M1/0061 ,  H02M1/0003

Abstract: A switching converter circuit includes a voltage regulation loop configured to provide an output voltage (VOUT) based on an input voltage (VIN). The switching converter circuit also includes a 100% mode circuitry coupled to the voltage regulation loop, wherein the 100% mode circuitry is configured to apply an offset to VOUT in response to detecting that VIN is approaching VOUT.

公开(公告)号：US11616439B2

公开(公告)日：2023-03-28

申请号：US16590021

申请日：2019-10-01

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Manuel Wiersch ,  Gerhard Thiele ,  Antonio Priego ,  Johann Erich Bayer

IPC: H02M3/158 ,  H02M1/00

Abstract: An electrical system includes: 1) a buck converter; 2) a battery coupled to an input of the buck converter; and 3) a load coupled to an output of the buck converter. The buck converter includes a high-side switch, a low-side switch, and regulation loop circuitry coupled to the high-side switch and the low-side switch. The regulation loop circuitry includes: 1) a main comparator; 2) a bias current source coupled to the main comparator and configured to provide a bias current to the main comparator; and 3) a dynamic biasing circuit coupled to the main comparator and configured to add a supplemental bias current to the bias current in 100% mode of the buck converter. The supplemental bias current varies depending on an input voltage (VIN) and an output voltage (VOUT) of the buck converter.

公开(公告)号：US11218076B2

公开(公告)日：2022-01-04

申请号：US16558079

申请日：2019-08-31

Applicant: Texas Instruments Incorporated

Inventor： Antonio Priego ,  Johann Erich Bayer ,  Gerhard Thiele

IPC: H02M3/158 ,  H02M1/00

Abstract: A switching converter circuit includes a hysteretic comparator with a reference voltage (VREF) node and a feedback node. The switching converter circuit also includes a switchable error amplifier circuit coupled to the feedback node of the hysteretic comparator. The switchable error amplifier circuit includes an error amplifier that is coupled to the feedback node during a power-save mode and that is decoupled from the feedback node during a deep power-save mode initiated in response to a duration of the power-save mode being greater than a time threshold.

公开(公告)号：US10992229B2

公开(公告)日：2021-04-27

申请号：US16655876

申请日：2019-10-17

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Gerhard Thiele ,  Manuel Wiersch ,  Antonio Priego ,  Johann Erich Bayer ,  Stefan Herzer

IPC: H02M3/156 ,  H02M1/00 ,  H02M3/158

Abstract: An electrical system includes: 1) a buck converter; 2) a battery coupled to an input of the buck converter; and 3) a load coupled to an output of the buck converter. The buck converter includes a high-side switch, a low-side switch, and regulation loop circuitry coupled to the high-side switch and the low-side switch. The regulation loop circuitry includes a comparator with preamplifier gain adjustment circuitry configured to adjust a preamplifier gain of the comparator based on an overdrive voltage.

公开(公告)号：US10965216B2

公开(公告)日：2021-03-30

申请号：US16141063

申请日：2018-09-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Gerhard Thiele ,  Manuel Wiersch

IPC: H02M3/158 ,  H02M1/08 ,  H02M1/00

Abstract: An integrated circuit comprising: a high-side pMOSFET comprising a drain and a gate; a node coupled to the drain of the high-side pMOSFET; a voltage-to-current circuit comprising a first nMOSFET and a first resistor, the first nMOSFET comprising a gate and a source, the first resistor comprising a terminal coupled to the source of the first nMOSFET; an error amplifier comprising an output port coupled to the gate of the first nMOSFET; a skip clamp nMOSFET comprising a source coupled to the output port of the error amplifier; and a current limit clamp pMOSFET comprising a source coupled to the output port of the error amplifier.