公开(公告)号：US20200266634A9

公开(公告)日：2020-08-20

申请号：US16039321

申请日：2018-07-18

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Zheren Lai ,  Jinrong Qian ,  Sai Bun Wong ,  Ryan Erik Lind ,  Alexander Lee McHale

IPC: H02J7/00 ,  H02M3/07

Abstract: A system for charging a battery includes an adapter, and a charger coupled to receive power from the adapter, and to provide a charging current to the battery. The charger includes a power stage with a charge pump to provide the charging current, and a feedback circuit to provide a feedback signal to the adapter. The power stage can be one of: an adjustable current source with voltage clamp, and an adjustable voltage source with current clamp. The charge pump can be implemented as a voltage divider, so that an input adapter current is multiplied by a pre-defined divider ratio to provide the charging current. The charge pump can be one of: single-phase; and multi-phase.

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。

公开(公告)号：US20190115765A1

公开(公告)日：2019-04-18

申请号：US16039321

申请日：2018-07-18

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Zheren Lai ,  Jinrong Qian ,  Sai Bun Wong ,  Ryan Erik Lind ,  Alexander Lee McHale

IPC: H02J7/00 ,  H02M3/07

Abstract: A system for charging a battery includes an adapter, and a charger coupled to receive power from the adapter, and to provide a charging current to the battery. The charger includes a power stage with a charge pump to provide the charging current, and a feedback circuit to provide a feedback signal to the adapter. The power stage can be one of: an adjustable current source with voltage clamp, and an adjustable voltage source with current clamp. The charge pump can be implemented as a voltage divider, so that an input adapter current is multiplied by a pre-defined divider ratio to provide the charging current. The charge pump can be one of: single-phase; and multi-phase.

公开(公告)号：US09735600B2

公开(公告)日：2017-08-15

申请号：US14853607

申请日：2015-09-14

Applicant: Texas Instruments Incorporated

Inventor： Mao Ye ,  Jinrong Qian ,  Suheng Chen ,  Richard Stair

IPC: H02J7/00 ,  H02M1/10 ,  H02M3/158 ,  H02M1/32

CPC classification number: H02J7/0063 ,  H02J7/0068 ,  H02J2007/0059 ,  H02M1/10 ,  H02M1/32 ,  H02M3/1582 ,  Y02T90/127 ,  Y10T307/625

Abstract: A power supply system includes a rechargeable battery to deliver a supply current to a load and a circuit to limit a discharge current when the rechargeable battery is supplying power to the load. The power supply system may further include an integrator for integrating a discharge voltage representing the discharge current that exceeds a predetermined limit, a pulse-width-modulation (PWM) circuit for producing a control signal having a PWM duty cycle representing the discharge voltage, and a driver circuit for delivering the supply current to said load according to said control signal. In one embodiment, a digital register is used to set the battery discharging current limit, in another embodiment an analog circuit is used to set the battery discharging current limit, and in yet another embodiment or a combination of the digital register and analog circuit is used to set the battery discharging current limit.

公开(公告)号：US11641126B2

公开(公告)日：2023-05-02

申请号：US16039321

申请日：2018-07-18

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Zheren Lai ,  Jinrong Qian ,  Sai Bun Wong ,  Ryan Erik Lind ,  Alexander Lee McHale

IPC: H02J7/02 ,  H02M3/07 ,  H02J7/00 ,  G05F1/575

Abstract: A system for charging a battery includes an adapter, and a charger coupled to receive power from the adapter, and to provide a charging current to the battery. The charger includes a power stage with a charge pump to provide the charging current, and a feedback circuit to provide a feedback signal to the adapter. The power stage can be one of: an adjustable current source with voltage clamp, and an adjustable voltage source with current clamp. The charge pump can be implemented as a voltage divider, so that an input adapter current is multiplied by a pre-defined divider ratio to provide the charging current. The charge pump can be one of: single-phase; and multi-phase.

公开(公告)号：US20160072331A1

公开(公告)日：2016-03-10

申请号：US14853607

申请日：2015-09-14

Applicant: Texas Instruments Incorporated

Inventor： Mao Ye ,  Jinrong Qian ,  Suheng Chen ,  Richard Stair

IPC: H02J7/00

CPC classification number: H02J7/0063 ,  H02J7/0068 ,  H02J2007/0059 ,  H02M1/10 ,  H02M1/32 ,  H02M3/1582 ,  Y02T90/127 ,  Y10T307/625

Abstract: A power supply system includes a rechargeable battery to deliver a supply current to a load and a circuit to limit a discharge current when the rechargeable battery is supplying power to the load. The power supply system may further include an integrator for integrating a discharge voltage representing the discharge current that exceeds a predetermined limit, a pulse-width-modulation (PWM) circuit for producing a control signal having a PWM duty cycle representing the discharge voltage, and a driver circuit for delivering the supply current to said load according to said control signal. In one embodiment, a digital register is used to set the battery discharging current limit, in another embodiment an analog circuit is used to set the battery discharging current limit, and in yet another embodiment or a combination of the digital register and analog circuit is used to set the battery discharging current limit.

Abstract translation: 电源系统包括可充电电池，用于向负载输送电流，并且当可再充电电池向负载供电时，限制放电电流。 供电系统还可以包括用于积分表示超过预定极限的放电电流的放电电压的积分器，用于产生具有表示放电电压的PWM占空比的控制信号的脉宽调制（PWM）电路，以及 驱动电路，用于根据所述控制信号将电源电流传送到所述负载。 在一个实施例中，使用数字寄存器来设置电池放电电流限制，在另一实施例中，使用模拟电路来设置电池放电电流限制，并且在另一个实施例中或者使用数字寄存器和模拟电路的组合 设置电池放电电流限制。

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。