公开(公告)号：US10897143B2

公开(公告)日：2021-01-19

申请号：US16228338

申请日：2018-12-20

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Jing Zou ,  Qiong M. Li ,  Richard Kane Stair

IPC: H02J7/00 ,  H01M10/00 ,  H01M10/44 ,  H01M10/0525 ,  H01M10/42

Abstract: A device for charging battery cells has conductive lines to be coupled to the battery cells, a charge control circuit coupled to the conductive lines to charge the battery cells, and to determine voltages of the battery cells, and switches to balance the voltages among the battery cells. In operation, the charge control circuit charges the battery cells while determining the voltages of the battery cells, and suspends from charging the battery cells before determining the voltages of the battery cells in a second stage.

公开(公告)号：US10763853B2

公开(公告)日：2020-09-01

申请号：US16137326

申请日：2018-09-20

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Wang Li ,  Qiong M. Li ,  Yipeng Su

IPC: H03K17/687 ,  H02J7/00 ,  H03K17/66 ,  H02J1/10 ,  H02J7/34

Abstract: In an example, a circuit comprising a first inductor coupled between a first node and a second node, a first PMOS having a source terminal coupled to the second node and a drain terminal coupled to a third node, a second PMOS having a source terminal coupled to a ground voltage potential and a drain terminal coupled to the second node, a third PMOS having a source terminal coupled to a fourth node and a drain terminal coupled to the third node, a fourth PMOS having a source terminal coupled to the ground voltage potential and a drain terminal coupled to the fourth node, a NMOS having a source terminal coupled to the third node and a drain terminal coupled to a fifth node, a second inductor coupled between the fourth node and the fifth node, and a controller.

公开(公告)号：US20140229748A1

公开(公告)日：2014-08-14

申请号：US14062404

申请日：2013-10-24

Applicant: Texas Instruments Incorporated

Inventor： Qiong M. Li ,  Jinrong Qian ,  Suheng Chen

IPC: H02J1/10 ,  G06F1/26 ,  H02J1/14

CPC classification number: G06F1/26 ,  G06F1/28 ,  G06F1/30 ,  G06F1/3212 ,  H02J7/0068 ,  H02J9/002 ,  Y02D10/174 ,  Y10T307/604 ,  Y10T307/625

Abstract: A method includes detecting removal or depletion of a power supply associated with a powered device. The powered device is configured to receive power from a power adapter via a narrow-voltage direct current/direct current (NVDC) charger and from the power supply. The method also includes, in response to the detection, disabling a dynamic power management function of the NVDC charger. The method further includes monitoring input current or input power provided to the powered device by the NVDC charger and determining if the input current or input power exceeds a threshold. In addition, the method includes, if the input current or input power exceeds the threshold, triggering a throttling of an operating clock frequency of the powered device. The method could also include (i) disabling a specified mode of operation and turning on a voltage regulator of the NVDC charger in response to the detection and (ii) providing over-voltage protection.

Abstract translation: 一种方法包括检测与被动设备相关联的电源的去除或耗尽。 有源设备配置为通过窄电压直流/直流（NVDC）充电器和电源从电源适配器接收电力。 该方法还包括响应于该检测，禁用NVDC充电器的动态功率管理功能。 该方法还包括监视由NVDC充电器提供给供电设备的输入电流或输入功率，并确定输入电流或输入功率是否超过阈值。 此外，该方法包括，如果输入电流或输入功率超过阈值，则触发受电设备的工作时钟频率的调节。 该方法还可以包括（i）响应于检测而禁用指定的操作模式和接通NVDC充电器的电压调节器，以及（ii）提供过电压保护。

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：US09430008B2

公开(公告)日：2016-08-30

申请号：US14062404

申请日：2013-10-24

Applicant: Texas Instruments Incorporated

Inventor： Qiong M. Li ,  Jinrong Qian ,  Suheng Chen

IPC: G06F1/26 ,  G06F1/28 ,  G06F1/30 ,  G06F1/32 ,  H02J7/00 ,  H02J9/00

CPC classification number: G06F1/26 ,  G06F1/28 ,  G06F1/30 ,  G06F1/3212 ,  H02J7/0068 ,  H02J9/002 ,  Y02D10/174 ,  Y10T307/604 ,  Y10T307/625

Abstract: A method includes detecting removal or depletion of a power supply associated with a powered device. The powered device is configured to receive power from a power adapter via a narrow-voltage direct current/direct current (NVDC) charger and from the power supply. The method also includes, in response to the detection, disabling a dynamic power management function of the NVDC charger. The method further includes monitoring input current or input power provided to the powered device by the NVDC charger and determining if the input current or input power exceeds a threshold. In addition, the method includes, if the input current or input power exceeds the threshold, triggering a throttling of an operating clock frequency of the powered device. The method could also include (i) disabling a specified mode of operation and turning on a voltage regulator of the NVDC charger in response to the detection and (ii) providing over-voltage protection.

Abstract translation: 一种方法包括检测与被动设备相关联的电源的去除或耗尽。 有源设备配置为通过窄电压直流/直流（NVDC）充电器和电源从电源适配器接收电力。 该方法还包括响应于该检测，禁用NVDC充电器的动态功率管理功能。 该方法还包括监视由NVDC充电器提供给供电设备的输入电流或输入功率，并确定输入电流或输入功率是否超过阈值。 此外，该方法包括，如果输入电流或输入功率超过阈值，则触发受电设备的工作时钟频率的调节。 该方法还可以包括（i）响应于检测而禁用指定的操作模式和接通NVDC充电器的电压调节器，以及（ii）提供过电压保护。

公开(公告)号：US09356460B2

公开(公告)日：2016-05-31

申请号：US14338771

申请日：2014-07-23

Applicant: Texas Instruments Incorporated

Inventor： Sai Bun S. Wong ,  Qiong M. Li ,  Jinrong Qian ,  Jonathan L. Britton

IPC: H02J7/00

CPC classification number: H02J7/0068 ,  G06F1/263 ,  G06F1/266 ,  H02J7/0055 ,  H02J7/007 ,  H02J2007/0062 ,  H02J2007/0096

Abstract: Methods, electronic devices and USB charger apparatus are presented for fast USB charging, in which a high voltage master of the device detects a connected high voltage charger and selectively connects a current circuit to source or sink a current to or from one USB cable data signal conductor while providing a non-zero voltage to the other USB cable data signal conductor to configure the charger apparatus to provide charging power at a particular high voltage level above a nominal voltage level.

Abstract translation: 提供了用于快速USB充电的方法，电子设备和USB充电器装置，其中设备的高压主机检测连接的高压充电器并且选择性地将电流电路连接到源或从一个USB电缆数据信号吸收电流 导体，同时向另一USB电缆数据信号导体提供非零电压，以配置充电器装置以在高于标称电压电平的特定高电压电平提供充电功率。

公开(公告)号：US20150035477A1

公开(公告)日：2015-02-05

申请号：US14338771

申请日：2014-07-23

Applicant: Texas Instruments Incorporated

Inventor： Sai Bun S. Wong ,  Qiong M. Li ,  Jinrong Qian ,  Jonathan L. Britton

IPC: H02J7/00

CPC classification number: H02J7/0068 ,  G06F1/263 ,  G06F1/266 ,  H02J7/0055 ,  H02J7/007 ,  H02J2007/0062 ,  H02J2007/0096

Abstract: Methods, electronic devices and USB charger apparatus are presented for fast USB charging, in which a high voltage master of the device detects a connected high voltage charger and selectively connects a current circuit to source or sink a current to or from one USB cable data signal conductor while providing a non-zero voltage to the other USB cable data signal conductor to configure the charger apparatus to provide charging power at a particular high voltage level above a nominal voltage level.

Abstract translation: 提供了用于快速USB充电的方法，电子设备和USB充电器装置，其中设备的高压主机检测连接的高压充电器并且选择性地将电流电路连接到源或从一个USB电缆数据信号吸收电流 导体，同时向另一USB电缆数据信号导体提供非零电压，以配置充电器装置以在高于标称电压电平的特定高电压电平提供充电功率。