公开(公告)号：US12199458B2

公开(公告)日：2025-01-14

申请号：US17448306

申请日：2021-09-21

Applicant: QUALCOMM Incorporated

Inventor： Cheong Kun ,  Guoyong Guo

IPC: H02J7/00

Abstract: Methods and apparatus for converting power using a multi-output switched-mode power supply (SMPS) coupled to a multi-cell-in-series battery, such as charging a two-cell-in-series (2S) battery using a dual-output three-level buck converter coupled thereto, or using a multi-input SMPS circuit receiving power from a multi-cell-in-series battery. One example power supply circuit generally includes a switched-mode power supply circuit having an input node and an output node, a battery comprising multiple cells connected in series, a charge pump circuit having a first terminal and a second terminal, the second terminal of the charge pump circuit being coupled to the battery, a first switch coupled between the output node of the switched-mode power supply circuit and the first terminal of the charge pump circuit, and a second switch coupled between the output node of the switched-mode power supply circuit and the second terminal of the charge pump circuit.

公开(公告)号：US12062938B2

公开(公告)日：2024-08-13

申请号：US17025789

申请日：2020-09-18

Applicant: Qualcomm Incorporated

Inventor： Cheong Kun ,  Chunping Song ,  Guoyong Guo

IPC: H02J7/00

CPC classification number: H02J7/00714 ,  H02J7/0047 ,  H02J2207/20 ,  H02J2207/40

Abstract: An apparatus is disclosed for parallel charging of at least one power storage unit. In example implementations, an apparatus includes a charging system. The charging system includes a first charger having a first current path and a second charger having a second current path. The charging system also includes a charging controller coupled to the first current path. The charging system further includes an indication path coupled between the second current path and the charging controller.

公开(公告)号：US10389163B2

公开(公告)日：2019-08-20

申请号：US15789663

申请日：2017-10-20

Applicant: QUALCOMM Incorporated

Inventor： David Wong ,  Neal Horovitz ,  Ta-Tung Yen ,  Sanghwa Jung ,  Cheong Kun ,  Kin Siu Fung

IPC: H02J7/00 ,  H02J7/02 ,  H02J50/10 ,  G01R31/382 ,  H02J7/04 ,  H03K5/24 ,  H02M3/158 ,  G01R31/36

Abstract: Enhanced reverse boosting detection in a wireless charging scheme is disclosed. In some implementations, a minimum mid-level input voltage regulation (VMID_MIN regulation) loop is provided to regulate an input voltage from a wirelessly coupled power source when a mid-level of the input voltage falls below a predetermined threshold. The input voltage is provided to a buck converter within a wireless charging receiver. An input missing poller signal generator is provided to generate an input missing poller (IMP) signal if the VMID_MIN regulation loop becomes active and the buck converter has entered a discontinuous mode.

公开(公告)号：US20210376643A1

公开(公告)日：2021-12-02

申请号：US17331522

申请日：2021-05-26

Applicant: Qualcomm Incorporated

Inventor： Georgios Konstantinos Paparrizos ,  Haoyan Li ,  Cheong Kun

IPC: H02J7/00 ,  H02J7/02

Abstract: An apparatus is disclosed for adaptively providing power. In example implementations, an apparatus includes a power adapter coupler, at least one transistor, a first charger, and a second charger. The first charger and the second charger are coupled between the power adapter coupler and the transistor. The apparatus also includes a first switch, a second switch, and a charging controller. The first switch is coupled in series with the first charger between the power adapter coupler and the transistor. The second switch is coupled in series with the second charger between the power adapter coupler and the transistor. The charging controller is coupled to the first switch and the second switch. The charging controller is configured to selectively close the first switch to connect the first charger to the at least one transistor or close the second switch to connect the second charger to the at least one transistor.

公开(公告)号：US11171493B2

公开(公告)日：2021-11-09

申请号：US16407038

申请日：2019-05-08

Applicant: QUALCOMM Incorporated

Inventor： Cheong Kun ,  Guoyong Guo ,  Curtis Gong ,  Kalpesh Shetye ,  Georgios Konstantinos Paparrizos ,  Todd Sutton

IPC: H02J7/00 ,  H02J7/02

Abstract: A battery charging circuit includes a buck converter, a charge pump power converter, a sensor external to or internal to the battery charging circuit, and a control unit. The charge pump power converter includes an output coupled to an output of the buck converter for charging a battery. The sensor is configured to sense a total input current. The control unit receives the total input current that is sensed and compensates for a variation in an input current to the charge pump power converter based on whether the total input current meets a specified current variance.

公开(公告)号：US10038427B2

公开(公告)日：2018-07-31

申请号：US13654322

申请日：2012-10-17

Applicant: QUALCOMM Incorporated

Inventor： Jongshick Ahn ,  Eric B Zeisel ,  Cheong Kun ,  Jennifer A Hagstrom

IPC: H02J7/00 ,  H03K3/0233

CPC classification number: H03K3/02335 ,  Y10T307/858

Abstract: Exemplary embodiments are directed to power path switching between multiple charging ports of an electronic device. A device may include a charging port of a plurality of charging ports for coupling to a power supply via an over-voltage protection circuit. The device may further including a comparison unit configured to couple the charging port to the power supply based at least partially on a comparison between a voltage at an input of the over-voltage protection circuit coupled to the charging port with a voltage at the output of the over-voltage protection circuit coupled to the power supply.

公开(公告)号：US20140070618A1

公开(公告)日：2014-03-13

申请号：US13804666

申请日：2013-03-14

Applicant: QUALCOMM INCORPORATED

Inventor： Nihit Bajaj ,  Cheong Kun ,  Baiying Yu ,  Hua Guan

IPC: H02J7/00

CPC classification number: H02J7/0052 ,  H02J7/0031 ,  H02J7/0034 ,  H02J2007/0037 ,  Y10T307/625

Abstract: Disclosed is battery charging circuit having a first detection circuit and a second detection circuit for detecting when to terminate an activated voltage collapse protection operation. The first detection circuit may be an analog design and the second detection circuit may include digital circuitry.

Abstract translation: 公开了具有第一检测电路和第二检测电路的电池充电电路，用于检测何时终止激活的电压崩溃保护操作。 第一检测电路可以是模拟设计，第二检测电路可以包括数字电路。

公开(公告)号：US20140055082A1

公开(公告)日：2014-02-27

申请号：US13785677

申请日：2013-03-05

Applicant: QUALCOMM INCORPORATED

Inventor： Cheong Kun ,  Eric B. Zeisel ,  David Keitel ,  Eric I. Mikuteit ,  Abhijeet V. Dharmapurikar ,  Todd R. Sutton

IPC: H02J7/00

CPC classification number: H02J7/007 ,  H01M10/44 ,  H02J7/0068 ,  H02J7/022 ,  H02J7/044

Abstract: Exemplary embodiments are directed to systems, devices, methods, and computer-readable media for calibrating a charging current. A device may include a charger for conveying an output voltage to a chargeable device. The device may also include a monitoring system including an analog-to-digital converter for measuring a current received by the chargeable device. Further, the device may include a control device configured to receive a charging current value from the monitoring system and convey a signal to the charger in response to a comparison of the charging current value to a target current value.

Abstract translation: 示例性实施例涉及用于校准充电电流的系统，设备，方法和计算机可读介质。 装置可以包括用于将输出电压传送到可计费装置的充电器。 该装置还可以包括监视系统，该监视系统包括用于测量可计费装置所接收的电流的模数转换器。 此外，该装置可以包括配置成从监视系统接收充电电流值并响应于充电电流值与目标电流值的比较而将信号传送到充电器的控制装置。