公开(公告)号：US20210091667A1

公开(公告)日：2021-03-25

申请号：US16992662

申请日：2020-08-13

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Johann Erich BAYER ,  Rüdiger GANZ ,  Ivan SHUMKOV

IPC: H02M3/158 ,  H02M3/157

Abstract: A controller includes a comparator having an inverting input coupled to a voltage converter output, a non-inverting input coupled to a voltage source, and an output. The controller includes a timer having a start input coupled to the converter that indicates that current through a converter inductor is less than a threshold; a stop input coupled to the comparator output; and an output having a digital value corresponding to the time between receiving asserted signals at start input and at stop input. The controller includes a time comparator having a first input coupled to the timer output and a second input to receive a time value. The time comparator asserts one of its outputs based on the digital and time values. The controller includes an accumulator coupled to the time comparator outputs, the accumulator configured to maintain, increase, or decrease an output value based on the asserted time comparator output.

公开(公告)号：US20240405681A1

公开(公告)日：2024-12-05

申请号：US18800187

申请日：2024-08-12

Applicant: Texas Instruments Incorporated

Inventor： Stefan Alexander REITHMAIER ,  Johann Erich BAYER ,  Rüdiger GANZ

IPC: H02M3/158

Abstract: A buck-boost converter includes a voltage input terminal, a voltage output terminal, a first switch, a second switch, an inductor, a third switch, and an auxiliary capacitor. The first switch includes a first terminal coupled to the voltage input terminal, and a second terminal. The second switch includes a first terminal coupled to the voltage output terminal, and a second terminal. The inductor is coupled between the second terminal of the first switch and the second terminal of the second switch. The third switch includes a first terminal coupled to the second terminal of the second switch, and a second terminal. The auxiliary capacitor is coupled to the second terminal of the third switch.

公开(公告)号：US20240030817A1

公开(公告)日：2024-01-25

申请号：US18480074

申请日：2023-10-03

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Manuel WIERSCH ,  Gerhard THIELE ,  Antonio PRIEGO ,  Johann Erich BAYER

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M1/0032

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：US20230275512A1

公开(公告)日：2023-08-31

申请号：US18311602

申请日：2023-05-03

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Johann Erich BAYER ,  Rüdiger GANZ ,  Ivan SHUMKOV

IPC: H02M3/158 ,  H02M1/00

CPC classification number: H02M3/1582 ,  H02M1/0032 ,  H02M3/157

Abstract: A system has an input and an output. The system includes a voltage converter, including first transistor coupled to the input and to a first switching node, second transistor coupled to the first switching node and to ground, third transistor coupled to a second switching node and to the output, fourth transistor coupled to the second switching node and to ground, and an inductor having a first terminal coupled to the first switching node and a second terminal coupled to the second switching node. The system also includes a controller coupled to the voltage converter, the controller including a state machine and a plurality of drivers to control the transistors of the voltage converter. The state machine is adaptable to cause the second and fourth transistors to conduct and the first and third transistors not to conduct, in response to current through the inductor being less than a current threshold.

公开(公告)号：US20230198402A1

公开(公告)日：2023-06-22

申请号：US18173859

申请日：2023-02-24

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Manuel WIERSCH ,  Gerhard THIELE ,  Antonio PRIEGO ,  Johann Erich BAYER

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M1/0032

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：US20230069710A1

公开(公告)日：2023-03-02

申请号：US17462101

申请日：2021-08-31

Applicant: Texas Instruments Incorporated

Inventor： Stefan Alexander REITHMAIER ,  Johann Erich BAYER ,  Rüdiger GANZ

IPC: H02M3/158 ,  H02M1/08

Abstract: A buck-boost converter includes a voltage input terminal, a voltage output terminal, a first switch, a second switch, an inductor, a third switch, and an auxiliary capacitor. The first switch includes a first terminal coupled to the voltage input terminal, and a second terminal. The second switch includes a first terminal coupled to the voltage output terminal, and a second terminal. The inductor is coupled between the second terminal of the first switch and the second terminal of the second switch. The third switch includes a first terminal coupled to the second terminal of the second switch, and a second terminal. The auxiliary capacitor is coupled to the second terminal of the third switch.

公开(公告)号：US20210091670A1

公开(公告)日：2021-03-25

申请号：US16992612

申请日：2020-08-13

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Johann Erich BAYER ,  Rüdiger GANZ ,  Ivan SHUMKOV

IPC: H02M3/158 ,  G01R19/165 ,  H03K5/24

Abstract: A system has an input and an output. The system includes a voltage converter, including first transistor coupled to the input and to a first switching node, second transistor coupled to the first switching node and to ground, third transistor coupled to a second switching node and to the output, fourth transistor coupled to the second switching node and to ground, and an inductor having a first terminal coupled to the first switching node and a second terminal coupled to the second switching node. The system also includes a controller coupled to the voltage converter, the controller including a state machine and a plurality of drivers to control the transistors of the voltage converter. The state machine is adaptable to cause the second and fourth transistors to conduct and the first and third transistors not to conduct, in response to current through the inductor being less than a current threshold.