公开(公告)号：US20250158603A1

公开(公告)日：2025-05-15

申请号：US18508565

申请日：2023-11-14

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Anmol Sharma ,  Orlando Lazaro

IPC: H03K5/01 ,  H03K3/01 ,  H03K5/24 ,  H03K17/56

Abstract: The techniques and circuits, described herein, include solutions for compensating for integrator drift. A drift compensation circuit has a first terminal coupled to an output of an integrator, and a second terminal coupled to an input of the integrator. The drift compensation circuit is configured to sense integrator drift at the output of the integrator, and provide a compensation signal to the input of the integrator based on the sensed drift. The input of the integrator may be coupled to an output of an additional integrator. By sensing the integrator drift at the end of the signal chain, and providing the compensation signal earlier in the signal chain, the compensation signal can compensate for integrator drift from multiple integrators in the system.

公开(公告)号：US20240288890A1

公开(公告)日：2024-08-29

申请号：US18173144

申请日：2023-02-23

Applicant: Texas Instruments Incorporated

Inventor： Sowmya Sankaranarayanan ,  Orlando Lazaro ,  Kevin Scoones ,  Avinash Bhat

IPC: G05F1/46 ,  G05F1/575 ,  G05F3/30

CPC classification number: G05F1/465 ,  G05F1/575 ,  G05F3/30

Abstract: In one example, an apparatus comprises a voltage reference circuit. The voltage reference circuit has a voltage reference terminal and includes a first circuit, a first semiconductor junction device, and a second semiconductor junction device coupled between the voltage reference terminal and a ground terminal. The first circuit is configured to generate a first voltage that increases with a temperature. The first semiconductor junction device is configured to generate a second voltage that decreases with the temperature. The second semiconductor junction device is configured to generate a third voltage that decreases with the temperature. The voltage reference circuit is configured to generate a fourth voltage between the voltage reference terminal and the ground terminal based on a sum of the first voltage and a combination of the second and third voltages.

公开(公告)号：US20230314484A1

公开(公告)日：2023-10-05

申请号：US18192759

申请日：2023-03-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Kevin Scoones ,  Vamsinath Peddireddy ,  Orlando Lazaro

IPC: G01R19/00 ,  H02M3/07 ,  H02M1/00

CPC classification number: G01R19/0038 ,  H02M3/07 ,  H02M1/0009

Abstract: In one example, an apparatus comprises: a first transistor coupled between a power terminal and a switching terminal; a second transistor coupled between the power terminal and a first sense terminal; a third transistor coupled between the switching terminal and a ground terminal; a fourth transistor coupled between a second sense terminal and the ground terminal; a first variable current source coupled to the first sense terminal; a second variable current source coupled to the second sense terminal; a processing circuit having first, second, third, and fourth inputs and first and second outputs, the first input coupled to the switching terminal, the second input coupled to the first sense terminal, the third input coupled to the ground terminal, the fourth input coupled to the second sense terminal, the first output coupled to the first variable current source, and the second output coupled to the second variable current source.

公开(公告)号：US20230072847A1

公开(公告)日：2023-03-09

申请号：US17985190

申请日：2022-11-11

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Orlando Lazaro ,  Yogesh Kumar Ramadass ,  Nan Xing

IPC: H02M7/483 ,  H02M3/07

Abstract: A method includes charging a capacitor of a power inverter to a direct current (DC) input voltage from an input terminal of the power inverter. The capacitor has first and second terminals. The method also includes providing a first voltage at an output terminal of the power inverter at a first time by controlling one of either: an output switch that selectively couples the output terminal to either the first terminal or the second terminal; or a set of input switches that selectively couple the first and second terminals to either the input terminal or a ground terminal. The method further includes providing a second voltage at the output terminal at a second time by controlling the other of the output switch or the set of input switches.

公开(公告)号：US11594959B1

公开(公告)日：2023-02-28

申请号：US17515387

申请日：2021-10-29

Applicant: Texas Instruments Incorporated

Inventor： Timothy Bryan Merkin ,  John Russell Broze ,  Orlando Lazaro

IPC: H02M3/07

Abstract: A switched capacitor voltage multiplication device has a rectifier with a DC input terminal and a DC output terminal and two pulse input terminals. A first flying capacitor is coupled to one of the pulse input terminals, while a second flying capacitor is coupled to the other pulse input terminal. A recycle resistor is coupled across the rectifier with a first resistor terminal coupled to one pulse input terminal and a second resistor terminal coupled to the other pulse input terminal.

公开(公告)号：US20220140826A1

公开(公告)日：2022-05-05

申请号：US17490660

申请日：2021-09-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Orlando Lazaro ,  Timothy Merkin ,  John Russell Broze ,  Matthew Xiong ,  Yogesh Kumar Ramadass ,  Ujwal Radhakrishna

IPC: H03K17/14 ,  H03K17/0812

Abstract: In a described example, a circuit includes a power device having voltage inputs and a command input. A sensing circuit has a sensor input and a sensor output, in which the sensor input is coupled to the power device. A control circuit has a control input and a control output, in which the control input coupled to the sensor output. A driver circuit has a driver input and a driver output. The driver input is coupled to the control output, and the driver output is coupled to the command input of the power device.

公开(公告)号：US10468988B2

公开(公告)日：2019-11-05

申请号：US16058859

申请日：2018-08-08

Applicant: Texas Instruments Incorporated

Inventor： Kevin Scoones ,  Orlando Lazaro ,  Alvaro Aguilar ,  Jeffrey Anthony Morroni ,  Reza Sharifi ,  Saurav Bandyopadhyay

IPC: H02M3/158 ,  H02M1/00 ,  H02M7/483

Abstract: In a described example, an apparatus includes a first switch coupled between a terminal for receiving an input voltage and a top plate node, and having a first control terminal; a second switch coupled between the top plate node and a switching node, and having a second control terminal; a third switch coupled between the switching node and a bottom plate node and having a third control terminal; a fourth switch coupled between the bottom plate node and a ground terminal, and having a fourth control terminal; a flying capacitor coupled between the top plate node and the bottom plate node; a fifth switch coupled between the top plate node and an auxiliary node; a sixth switch coupled between the auxiliary node and the bottom plate node; and an auxiliary capacitor coupled between the auxiliary control terminal and a ground terminal.

公开(公告)号：US10355609B2

公开(公告)日：2019-07-16

申请号：US15858648

申请日：2017-12-29

Applicant: Texas Instruments Incorporated

Inventor： Orlando Lazaro ,  Kevin Scoones ,  Jeffrey Anthony Morroni ,  Alvaro Aguilar ,  Reza Sharifi

IPC: H02M3/158 ,  H02M3/335 ,  H02M3/06 ,  H03K7/08 ,  G05F1/575 ,  H02M1/00

Abstract: In described examples of methods and control circuitry to control a multi-level power conversion system with a flying capacitor, a power circuit regulates a regulator input voltage signal to provide a supply voltage signal to the control circuitry. A power switching circuit couples the regulator input to a first terminal of the flying capacitor in response to a second terminal of the flying capacitor being coupled to a reference voltage node in a given switching cycle, and couples the regulator input to the second terminal in response to the first terminal being coupled to an input node of the power conversion system in the given switching cycle.

公开(公告)号：US10097089B2

公开(公告)日：2018-10-09

申请号：US15599579

申请日：2017-05-19

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Reza Sharifi ,  Kevin Scoones ,  Orlando Lazaro

IPC: H02M3/158 ,  H02M1/00 ,  H02M1/14

Abstract: A voltage converter includes a high side transistor, a low side transistor coupled to the high side transistor at a switching node, and an inductor coupled to the switching node and providing an output node. A controller is provided that is coupled to the high side transistor and the low side transistor. The controller is configured to selectively turn on and off the high and low side transistors in a repeat cycle. The controller is configured to control the high and low side transistors to cause a sequence of packets of charge to be delivered to the inductor. Also included is an adaptive timer circuit coupled to the output node and the controller and configured to adaptively adjust the amount of charge in each packet based on the voltage ripple of the output node.

公开(公告)号：US20240372462A1

公开(公告)日：2024-11-07

申请号：US18617020

申请日：2024-03-26

Applicant: Texas Instruments Incorporated

Inventor： Kevin Scoones ,  Orlando Lazaro ,  Ntiamoah Kwarteng

IPC: H02M1/14 ,  H02M3/155

Abstract: Control circuits for DC-DC power converters. In one example, a control circuit includes a voltage control loop configured to produce a control voltage based on an output voltage of a DC-DC converter and a reference voltage, and a current control loop configured to produce a control current based on the control voltage. The current control loop may be further configured to adjust the control current based on a signal proportional to an input voltage of the DC-DC converter to provide an adjusted control current that is inversely proportional to the input voltage, and to produce, based on the adjusted control current and an inductor current in an inductor of the DC-DC converter, a drive signal to drive one or more power transistors of the DC-DC converter.