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：US10199929B2

公开(公告)日：2019-02-05

申请号：US15284262

申请日：2016-10-03

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Michael Couleur ,  Neil Gibson ,  Antonio Priego

IPC: H02M3/07 ,  H03L7/081 ,  H03L7/089 ,  H03L5/02 ,  H02M3/158 ,  H02M1/14

Abstract: Disclosed examples include a transient event detector circuit to detect transient events in a switching converter, including a DLL circuit to detect changes in a duty cycle of a pulse width modulation signal used to operate a switching converter, and an output circuit to provide a status output signal in a first state when no transient event is detected, and to provide the status output signal in a second state indicating a transient event in the switching converter in response to a detected change in the duty cycle of the pulse width modulation signal.

公开(公告)号：US12132402B2

公开(公告)日：2024-10-29

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 ,  H02M1/00

CPC classification number: H02M3/158 ,  H02M1/0032 ,  H02M1/0048

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：US11881780B2

公开(公告)日：2024-01-23

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 ,  H02M1/00

CPC classification number: H02M3/158 ,  H02M1/0032 ,  H02M1/0048

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：US11646666B2

公开(公告)日：2023-05-09

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

CPC classification number: H02M3/1586 ,  H02M1/0025 ,  H02M1/0043 ,  H02M1/0074 ,  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：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：US10270346B2

公开(公告)日：2019-04-23

申请号：US15853494

申请日：2017-12-22

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Antonio Priego ,  Neil Gibson ,  Syed Wasif Mehdi

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

Abstract: A multiphase power regulator includes a plurality of phases coupled in parallel to provide a load current as a combination of phase currents at an output voltage, each phase including at least one power transistor switched to provide a respective phase current based at least in part on a comparator output signal, and a current-sense low pass filter to sense the phase current. The regulator further includes a gm stage to generate the current set point voltage based at least in part on the output voltage, a comparator to compare a voltage from the current-sense low pass filters to the current set point voltage and a current set point adjustment circuit to provide an auxiliary control signal to decrease the current set point voltage responsive to a change in comparator output and then to increase the current set point voltage responsive to another change in comparator output.

公开(公告)号：US10243464B2

公开(公告)日：2019-03-26

申请号：US15854061

申请日：2017-12-26

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Syed Wasif Mehdi ,  Neil Gibson ,  Antonio Priego

IPC: H02M3/158 ,  G05F1/62 ,  H02M1/08 ,  H02J1/10 ,  H02M3/338 ,  H03K17/16 ,  H02M3/137

Abstract: A controller including a voltage synthesizer for a switching regulator includes a synthesizer input to be coupled to an input of the regulator. First and second replica switching transistors are connected at a first node. A resistor couples between the first node and a second node, and a capacitor couples between the second node and ground. A transconductance stage compares a voltage sampled onto the capacitor to the output voltage of the regulator and generates an output signal in response to the comparison. A first switch couples between first and second inputs of the transconductance stage. The first switch is turned on during each cycle of operation of the voltage synthesizer to reset the capacitor voltage to the output voltage of the regulator.

公开(公告)号：US20180262185A1

公开(公告)日：2018-09-13

申请号：US15975858

申请日：2018-05-10

Applicant: Texas Instruments Incorporated

Inventor： Michael Couleur ,  Neil Gibson ,  Antonio Priego

IPC: H03K7/06 ,  H03L7/081 ,  H02M3/07 ,  H03K4/52

CPC classification number: H03K7/06 ,  H02M3/07 ,  H02M3/156 ,  H02M2001/0006 ,  H02M2001/0035 ,  H02M2001/0048 ,  H03K3/033 ,  H03K4/52 ,  H03L5/02 ,  H03L7/0812 ,  H03L7/089 ,  Y02B70/1491 ,  Y02B70/16

Abstract: Disclosed examples include self-biased DLL circuits to generate a bias current signal proportional to a repetition frequency of a first signal representing continuous switching or discontinued switching operation of the DC-DC converter. The DLL circuit includes a monostable multivibrator to provide a pulse output signal in response to an edge of the first signal with a pulse duration set by a control current signal, a phase detector to provide output signals according to a phase difference between an edge of the pulse output signal and the first signal, and an output circuit to provide an output signal according to the phase detector output signals and according to an offset signal, to provide the bias current signal according to the output signal, and to provide the control current signal according to the output signal.