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

IPC: H02J7/04 ,  H02J7/02 ,  H02J50/12 ,  H04B5/00

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：US20180287405A1

公开(公告)日：2018-10-04

申请号：US15471521

申请日：2017-03-28

Applicant: QUALCOMM Incorporated

Inventor： Arvind GOVINDARAJ ,  Sumukh SHEVDE ,  Joseph MAALOUF

IPC: H02J7/00 ,  H02J7/02 ,  H02M3/158 ,  H02M1/44 ,  H02J50/10

Abstract: Techniques for wired and wireless charging of electronic devices are provided. An example of a method for charging a device according to the disclosure includes receiving a signal from a power source with an electronic circuit, such that the electronic circuit includes a synchronous rectifier comprising a first phase leg and a second phase leg, utilizing the first phase leg to implement synchronous rectification and the second phase leg to implement a single phase buck converter when the signal is a wireless signal received from the power source, utilizing the first phase leg and the second phase leg to implement a multi-phase buck converter when the signal is received from a wired power source, and providing an output signal with the electronic circuit.

公开(公告)号：US20170373539A1

公开(公告)日：2017-12-28

申请号：US15191378

申请日：2016-06-23

Applicant: QUALCOMM Incorporated

Inventor： William Henry VON NOVAK, III ,  Jen CHEN ,  Timothy KERSSEN ,  Xiaoyu LIU ,  Francesco CAROBOLANTE ,  Yung-Ho TSAI ,  Kelsey BURRELL ,  Andrew ARNETT ,  Sumukh SHEVDE ,  Charles Edward WHEATLEY

IPC: H02J50/12 ,  H02J7/02 ,  H02J50/40 ,  H02J7/04 ,  H02J50/80

CPC classification number: H02J50/12 ,  H02J7/025 ,  H02J7/045 ,  H02J50/40 ,  H02J50/50 ,  H02J50/70 ,  H02J50/80 ,  H02J50/90

Abstract: A wireless power transmitter system includes: a power delivery structure comprising power transmitting elements (power transmitting elements), each of which is configured to induce a field, and configured to adapt to an exterior shape of an entity that contains a receiver; a power circuit configured to provide power to the power transmitting elements selectively; and a controller configured to: determine an electrical characteristic, other than power transfer to the receiver, associated with actuating at least one of the power transmitting elements; determine at least one power transmitting element subset, based on the electrical characteristic, containing less than all, and at least one, of the power transmitting elements; select, based on power transferred to the receiver, one or more charging power transmitting elements to use to charge the receiver wirelessly; and cause the power circuit to provide power to the one or more charging power transmitting elements.

公开(公告)号：US20190013687A1

公开(公告)日：2019-01-10

申请号：US15642420

申请日：2017-07-06

Applicant: QUALCOMM Incorporated

Inventor： Sumukh SHEVDE ,  William Henry VON NOVAK, III ,  Joseph MAALOUF

IPC: H02J7/00 ,  H02J7/02

Abstract: Techniques for providing wired and wireless charging to a device are provided. An example of an apparatus for receiving power from a wired power supply and a wireless power supply according to the disclosure includes a wireless power receiver configured to receive power from the wireless power supply, a direct current input circuit configured to receive power from the wired power supply, a control circuit operably coupled to the wireless power receiver and the direct current input circuit and configured to determine a power transfer capability for each of the wired power supply and the wireless power supply, and select the wireless power receiver from the wireless power supply or with the direct current input circuit from the wired power supply to receive power based on the power transfer capabilities.

公开(公告)号：US20180076666A1

公开(公告)日：2018-03-15

申请号：US15264854

申请日：2016-09-14

Applicant: QUALCOMM Incorporated

Inventor： William Henry VON NOVAK, III ,  Sumukh SHEVDE ,  Kelsey BURRELL ,  Joseph MAALOUF ,  Mei-Li CHI

IPC: H02J50/12 ,  H02J7/02 ,  H02J50/80 ,  H02J50/90

CPC classification number: H02J50/12 ,  H02J7/025 ,  H02J50/10 ,  H02J50/80 ,  H02J50/90

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for reconfiguring wireless power resonator. Certain aspects of the present disclosure provide a wireless power resonator. The wireless power resonator includes a first section. The wireless power resonator further includes a second section electrically coupled and physically coupled to the first section. The second section is configured to be movable with respect to the first section while remaining both electrically coupled and physically coupled to the first section to change an effective area of the wireless power resonator.

公开(公告)号：US20180076635A1

公开(公告)日：2018-03-15

申请号：US15633561

申请日：2017-06-26

Applicant: QUALCOMM Incorporated

Inventor： Joseph MAALOUF ,  Sumukh SHEVDE

IPC: H02J7/00 ,  H02M3/07

CPC classification number: H02J7/008 ,  H02J7/0065 ,  H02J7/022 ,  H02J50/12 ,  H02M3/07

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for a voltage controlled charge pump and battery charger. Certain aspects of the present disclosure provide a method for operating a voltage controlled charge pump. The method includes selectively opening and closing a plurality of switches based on a voltage on a feedback path. The plurality of switches are coupled between a voltage input terminal and a voltage output terminal. A first capacitor is coupled between at least a first switch and a second switch of the plurality of switches. A second capacitor is coupled to the voltage output terminal. The feedback path is coupled to at least one of the voltage output terminal, the first capacitor, and the second capacitor.