公开(公告)号：US20250047204A1

公开(公告)日：2025-02-06

申请号：US18927012

申请日：2024-10-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Karthik Nandimandalam Venkata ,  Siew Kuok Hoon ,  Daniel Andrew Mavencamp ,  Jairo Daniel Olivares

IPC: H02M3/158 ,  G01R19/165 ,  H02J7/00

Abstract: A device includes a battery current sense circuit configured to generate a battery current feedback voltage based on a current provided to a battery, a current regulation feedback loop configured to regulate the current provided to the battery based on the battery current feedback voltage and a configurable battery current reference voltage, and a precharge regulation feedback loop configured to regulate the current provided to the battery based on the battery current feedback voltage and a configurable precharge reference voltage. The device also includes a processor configured to set the battery current reference voltage to a first value and set the precharge current reference voltage to a second value. The first value is less than the second value during a transition state.

公开(公告)号：US11387659B2

公开(公告)日：2022-07-12

申请号：US16452175

申请日：2019-06-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Yipeng Su ,  Qiong M. Li ,  Jing Ye ,  Siew Kuok Hoon

IPC: H02J7/00 ,  H02M3/156

Abstract: Aspects of the present disclosure provide for a method. In at least some examples, the method includes controlling gate terminals of one or more transistors of a charger to operate the charger in a buck-boost mode of operation to generate a system voltage based on a bus voltage by performing power conversion through switching, determining that the bus voltage is greater in value than a voltage of a battery coupled to the charger, and controlling the gate terminals of the one or more transistors of the charger to operate the charger in a pass-through mode of operation to generate the system voltage based on the bus voltage without performing power conversion.

公开(公告)号：US11088559B2

公开(公告)日：2021-08-10

申请号：US16259762

申请日：2019-01-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Karthik Nandimandalam Venkata ,  Siew Kuok Hoon ,  Daniel Andrew Mavencamp ,  Jairo Daniel Olivares

IPC: H02J7/00 ,  H02M3/158 ,  G01R19/165

Abstract: A device includes a battery current sense circuit configured to generate a battery current feedback voltage based on a current provided to a battery, a current regulation feedback loop configured to regulate the current provided to the battery based on the battery current feedback voltage and a configurable battery current reference voltage, and a precharge regulation feedback loop configured to regulate the current provided to the battery based on the battery current feedback voltage and a configurable precharge reference voltage. The device also includes a processor configured to set the battery current reference voltage to a first value and set the precharge current reference voltage to a second value. The first value is less than the second value during a transition state.

公开(公告)号：US12155308B2

公开(公告)日：2024-11-26

申请号：US17366535

申请日：2021-07-02

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Karthik Nandimandalam Venkata ,  Siew Kuok Hoon ,  Daniel Andrew Mavencamp ,  Jairo Daniel Olivares

IPC: H02M3/158 ,  G01R19/165 ,  H02J7/00

Abstract: A device includes a battery current sense circuit configured to generate a battery current feedback voltage based on a current provided to a battery, a current regulation feedback loop configured to regulate the current provided to the battery based on the battery current feedback voltage and a configurable battery current reference voltage, and a precharge regulation feedback loop configured to regulate the current provided to the battery based on the battery current feedback voltage and a configurable precharge reference voltage. The device also includes a processor configured to set the battery current reference voltage to a first value and set the precharge current reference voltage to a second value. The first value is less than the second value during a transition state.

公开(公告)号：US10778099B1

公开(公告)日：2020-09-15

申请号：US16520015

申请日：2019-07-23

Applicant: Texas Instruments Incorporated

Inventor： Austin James Womac ,  Siew Kuok Hoon ,  Orlando Lazaro

IPC: H02M3/158 ,  H02M1/14 ,  H02J7/00 ,  H02M3/156

Abstract: A device includes a power converter having an input coupled to a first node and an output coupled to an output terminal adapted to couple to a battery. A blocking transistor is coupled between a second node and the first node. A regulator has inputs coupled to the first node and the second node and an output coupled to a control node of the blocking transistor. The regulator is configured to control the blocking transistor to regulate a voltage drop across the blocking transistor based on a voltage between the first node and the second node. The regulator is also configured to turn off the blocking transistor in response to a voltage at the first node exceeding a voltage at the second node by at least a threshold to block boost-back current flowing from the output terminal to the second node.