-
公开(公告)号：US20250047122A1
公开(公告)日：2025-02-06
申请号：US18801144
申请日：2024-08-12
Applicant: QUALCOMM Incorporated
Inventor： Cheong KUN , Chunping SONG , Guoyong GUO
IPC: H02J7/00
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：US20250125644A1
公开(公告)日：2025-04-17
申请号：US19000056
申请日：2024-12-23
Applicant: QUALCOMM Incorporated
Inventor： Georgios Konstantinos PAPARRIZOS , Haoyan LI , Cheong KUN
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：US20220231518A1
公开(公告)日：2022-07-21
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：US20210376622A1
公开(公告)日：2021-12-02
申请号：US17336075
申请日：2021-06-01
Applicant: QUALCOMM Incorporated
Inventor： Guoyong GUO , Cheong KUN , Chunping SONG
Abstract: Methods and apparatus for trickle charging and precharging a dead multi-cell-in-series battery. One example battery charging circuit generally includes a charge pump circuit comprising a plurality of switches, being coupled to first and second power supply nodes, and being configured to multiply (or divide) a first voltage at the first power supply node to generate a second voltage at the second power supply node; a driver circuit configured to drive the plurality of switches in the charge pump circuit; and an arbiter having a first input coupled to the first power supply node, a second input coupled to the second power supply node, a third input coupled to a third power supply node having a third voltage, and an output coupled to a power supply terminal of the driver circuit, the arbiter being configured to select between the first, second, and third voltages to power the driver circuit.
-
Patent Agency Ranking
公开(公告)号：US20190120905A1
公开(公告)日：2019-04-25
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
CPC classification number: H02J7/025 , G01R31/3648 , G01R31/382 , H02J7/04 , H02J50/10 , H02M3/158 , H03K5/24
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：US20180239410A1
公开(公告)日：2018-08-23
申请号：US15898055
申请日：2018-02-15
Applicant: QUALCOMM Incorporated
CPC classification number: G06F1/266 , G06F9/44505 , G06F13/4282 , G06F2213/0042 , H02J7/0004 , H02J7/0054 , H02J2007/0096
Abstract: Certain aspects of the present disclosure generally relate to methods and apparatus for charging a device. Some example methods for charging a device generally include providing power from a first device to a second device, the second device being configured for electrical connection with the first device via a cable. For example, a method may include transmitting a signal comprising one or more parameters associated with the first device to the second device, receiving a signal at the first device via a pin designated for a configuration channel, the signal indicating at least one of a requested charging voltage or a requested charging current based on the one or more parameters, and outputting power from the first device to the second device based on the signal.
-
公开(公告)号：US20180138735A1
公开(公告)日：2018-05-17
申请号：US15653264
申请日：2017-07-18
Applicant: QUALCOMM Incorporated
Inventor： Joseph MAALOUF , Sumukh SHEVDE , Curtis GONG , Christian SPORCK , Cheong KUN
CPC classification number: H02J7/045 , H02J7/025 , H02J50/12 , H02J50/80 , H04B5/0037
Abstract: Certain aspects of the present disclosure relate to methods and apparatus for limiting the power drawn by a battery charger based on monitoring of the input voltage and input current supplied to the battery charger from a power supply. In certain aspects, a method generally includes sensing an output voltage of the power supply, wherein the output voltage of the power supply is variable. The method further includes sensing an output current of the power supply. The method further includes providing the output voltage and output current to a battery charger. The method further includes generating a control signal indicative of a scaling of the output current based on a scaling factor, wherein the scaling factor is based on the output voltage. The method further includes providing the control signal to the battery charger to control the output current supplied by the power supply to the battery charger.
-
公开(公告)号：US20240258819A1
公开(公告)日：2024-08-01
申请号：US18431763
申请日：2024-02-02
Applicant: Qualcomm Incorporated
Inventor： Chunping SONG , Cheong KUN , Xiaolin GAO , Sanghwa JUNG , Yue JING
CPC classification number: H02J7/007192 , H02J7/02 , H02J2207/20
Abstract: An apparatus is disclosed for adaptive multi-mode charging. In an example aspect, the apparatus includes at least one charger having a first node and a second node. The at least one charger is configured to accept an input voltage at the first node. The at least one charger is also configured to selectively operate in a first mode to generate a first output voltage at the second node that is greater than or less than the input voltage or operate in a second mode to generate a second output voltage at the second node that is substantially equal to the input voltage.
-
公开(公告)号：US20230198243A1
公开(公告)日：2023-06-22
申请号：US17644888
申请日：2021-12-17
Applicant: QUALCOMM Incorporated
Inventor： Guoyong GUO , Cheong KUN
CPC classification number: H02H5/00 , H02H1/0007
Abstract: A data interconnect system includes: a plurality of pins arranged within a receptacle, a first one of the pins being a power pin, wherein the pins are electrically isolated from each other within the receptacle; a first switching network including a first plurality of parallel switching devices, each of the parallel switching devices of the first plurality of parallel switching devices coupling a respective one of the pins to a node; a first current path from the node to ground, the first current path including a current device; and a second current path, parallel to the first current path, the second current path including a resistor coupling the node to ground.
-
-
-
-
-
-
-
-
Search Results
9
records
(took 0.013 seconds)
