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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
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.
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公开(公告)号：US20160006293A1
公开(公告)日：2016-01-07
申请号：US14616021
申请日：2015-02-06
Applicant: QUALCOMM Incorporated
Inventor： Seong Heon Jeong , Mei-Li Chi , Curtis Gong , David George Fern , Francesco Carobolante
CPC classification number: H02J50/12 , G06F1/1626 , G06F1/1656 , G06F1/263 , H01F38/14 , H02J5/005 , H02J7/025 , H04B5/0037 , H04B5/0075
Abstract: A method and system for providing wireless power transfer through a metal object is provided. In one aspect, an apparatus for wirelessly receiving power via a magnetic field is provided. The apparatus includes a metal cover including an inner portion and an outer portion. The outer portion is configured to form a loop around the inner portion of the metal cover. The outer portion is configured to inductively couple power via the magnetic field. The apparatus includes a receive circuit electrically coupled to the outer portion and configured to receive a current from the outer portion generated in response to the magnetic field. The receive circuit is configured to charge or power a load based on the current.
Abstract translation: 提供了一种通过金属物体提供无线电力传输的方法和系统。 一方面，提供一种经由磁场无线接收电力的装置。 该装置包括金属盖，其包括内部部分和外部部分。 外部构造成围绕金属盖的内部部分形成环。 外部部分被配置为通过磁场感应地耦合电力。 该装置包括电耦合到外部部分并被配置为接收来自响应于该磁场产生的外部部分的电流的接收电路。 接收电路被配置为基于电流对负载充电或供电。
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Patent Agency Ranking
3.发明授权公开(公告)号：US10291073B2
公开(公告)日：2019-05-14
申请号：US15181245
申请日：2016-06-13
Applicant: QUALCOMM Incorporated
Inventor： Colby Trudeau , Scott Walter , Zhen Ning Low , Joseph Najib Maalouf , Curtis Gong , Sumukh Ashok Shevde
Abstract: Devices and methods for controlling a power supply of a wireless power transmitter based on the request of a wireless power receiver are disclosed. One embodiment provides a wireless power receiver. The wireless power receiver includes a power receiver circuit configured to receive power from a wireless power transmitter at a level sufficient to power or charge a load. The wireless power receiver also includes a processor circuit configured to adjust a level of the received power being provided to the load based on a change in a level of received power to be requested to the wireless power transmitter. The processor circuit is further configured send to the wireless power transmitter the request to change the level of the received power to a first different level.
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4.发明申请公开(公告)号：US20170047782A1
公开(公告)日：2017-02-16
申请号：US15081088
申请日：2016-03-25
Applicant: QUALCOMM Incorporated
Inventor： Sumukh Ashok Shevde , Joseph Najib Maalouf , Curtis Gong , William Henry Von Novak, III , Mark David White, II
Abstract: An apparatus for receiving wireless power is provided. The apparatus a communication circuit configured to transmit a first indication of a first wireless charging category associated with the apparatus. The communication circuit is further configured to receive an indication of a wireless charging class of a power transmit unit (PTU). The communication circuit is further configured to transmit a second indication of a second wireless charging category associated with the apparatus based on the wireless charging class of the PTU being compatible with a higher wireless charging category than the first wireless charging category. The apparatus further comprises a coupler configured to receive a level of wireless power corresponding to the second wireless charging category. The higher wireless charging category indicates an ability to receive a greater amount of wireless power than the first wireless charging category
Abstract translation: 提供了一种用于接收无线电力的装置。 该设备是被配置为发送与该设备相关联的第一无线充电类别的第一指示的通信电路。 通信电路还被配置为接收功率发射单元（PTU）的无线充电类别的指示。 通信电路还被配置为基于与第一无线充电类别相比更高的无线充电类别兼容的PTU的无线充电类别来发送与该装置相关联的第二无线充电类别的第二指示。 该设备还包括耦合器，被配置为接收与第二无线充电类别对应的无线电力级别。 较高的无线充电类别指示接收比第一无线充电类别更大量的无线电力的能力
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公开(公告)号：US10418855B2
公开(公告)日：2019-09-17
申请号：US15081088
申请日：2016-03-25
Applicant: QUALCOMM Incorporated
Inventor： Sumukh Ashok Shevde , Joseph Najib Maalouf , Curtis Gong , William Henry Von Novak, III , Mark White, II
Abstract: An apparatus for receiving wireless power is provided. The apparatus a communication circuit configured to transmit a first indication of a first wireless charging category associated with the apparatus. The communication circuit is further configured to receive an indication of a wireless charging class of a power transmit unit (PTU). The communication circuit is further configured to transmit a second indication of a second wireless charging category associated with the apparatus based on the wireless charging class of the PTU being compatible with a higher wireless charging category than the first wireless charging category. The apparatus further comprises a coupler configured to receive a level of wireless power corresponding to the second wireless charging category. The higher wireless charging category indicates an ability to receive a greater amount of wireless power than the first wireless charging category.
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公开(公告)号：US10381875B2
公开(公告)日：2019-08-13
申请号：US14616021
申请日：2015-02-06
Applicant: QUALCOMM Incorporated
Inventor： Seong Heon Jeong , Mei-Li Chi , Curtis Gong , David George Fern , Francesco Carobolante
Abstract: A method and system for providing wireless power transfer through a metal object is provided. In one aspect, an apparatus for wirelessly receiving power via a magnetic field is provided. The apparatus includes a metal cover including an inner portion and an outer portion. The outer portion is configured to form a loop around the inner portion of the metal cover. The outer portion is configured to inductively couple power via the magnetic field. The apparatus includes a receive circuit electrically coupled to the outer portion and configured to receive a current from the outer portion generated in response to the magnetic field. The receive circuit is configured to charge or power a load based on the current.
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公开(公告)号：US10361581B2
公开(公告)日：2019-07-23
申请号：US15653264
申请日：2017-07-18
Applicant: QUALCOMM Incorporated
Inventor： Joseph Maalouf , Sumukh Shevde , Curtis Gong , Christian Sporck , Cheong Kun
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.
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