公开(公告)号：US20210065965A1

公开(公告)日：2021-03-04

申请号：US17096788

申请日：2020-11-12

Applicant: Apple Inc.

Inventor： Jouya Jadidian ,  Vaneet Pathak ,  Martin Schauer ,  Cheung-Wei Lam ,  Darshan R. Kasar ,  Christopher S. Graham ,  Andro Radchenko

IPC: H01F27/28 ,  H02J50/10 ,  H01F38/14 ,  H01F27/36

Abstract: A shield for redirecting magnetic field generated from a plurality of transmitter coils includes a ferromagnetic structure divided into segments by a plurality of boundary regions, each segment comprises a first material having a first magnetic permeability and each boundary region comprises a second material having a second magnetic permeability lower than the first magnetic permeability, where the plurality of boundary regions are configured to resist a propagation of magnetic field from a first area of the ferromagnetic structure to a second area of the ferromagnetic structure, where the first area intercepts the magnetic field generated from at least one active transmitter coil of the plurality of transmitter coils.

公开(公告)号：US20210036557A1

公开(公告)日：2021-02-04

申请号：US16554349

申请日：2019-08-28

Applicant: Apple Inc.

Inventor： Grant S. Haug ,  Christopher S. Graham ,  Aaron A. Oro ,  Eric S. Jol ,  Karl Ruben F. Larsson ,  Timothy J. Rasmussen ,  Paul J. Thompson

IPC: H02J50/70 ,  H01F27/36 ,  H02J7/02

Abstract: This application relates to a wireless charger with reduced heat generation during operation. The wireless charger includes a connector, a charging assembly and a cable connecting the connector and the charging assembly. A converter component has been moved away from the charging assembly, where an electronic device is placed for charging, to the connector. In some embodiments, one or more electromagnetic shielding components protect the components of the wireless charger.

公开(公告)号：US10790699B2

公开(公告)日：2020-09-29

申请号：US16258464

申请日：2019-01-25

Applicant: Apple Inc.

Inventor： Christopher M. Pinciuc ,  Brandon R. Garbus ,  Steven G. Herbst ,  Todd K. Moyer ,  Chad A. Bossetti ,  Eric S. Jol ,  Christopher S. Graham

IPC: H02J7/02 ,  H02J50/90 ,  H02J50/40 ,  H02J50/70 ,  H02J50/10 ,  H02J50/12 ,  H02J7/00 ,  H02J50/00

Abstract: A wireless transmitter device is configurable and operable to transfer energy to multiple receiver devices at the same time. The transmitter device is configured to enable one or more sections of a charging surface to transfer energy by selectively choosing one or more conductive traces in the transmitter device based on the position of the receiver device on the charging surface. The size and shape of each section of the charging surface that is used to transfer energy to a receiver device can change dynamically based on each receiver device. Additionally, the process of transferring energy to each receiver device may be adjusted during energy transfer based on conditions specific to each receiver device.

公开(公告)号：US10714951B2

公开(公告)日：2020-07-14

申请号：US15699986

申请日：2017-09-08

Applicant: Apple Inc.

Inventor： Christopher S. Graham ,  Demetrios B. Karanikos ,  Darshan R. Kasar ,  Paul J. Thompson ,  Eric S. Jol ,  Grant S. Haug ,  Karl Ruben F. Larsson

IPC: H02J7/00 ,  H02J50/10 ,  H01F27/28 ,  H02J7/02 ,  H05K9/00 ,  H02J50/40 ,  H02J50/60 ,  H02J50/70 ,  H04B5/00 ,  H01F27/32 ,  H02J5/00

Abstract: Embodiments describe a wireless charging device including: a housing having a charging surface and first and second walls that define an interior cavity; a transmitter coil arrangement disposed within the interior cavity, an interconnection structure positioned within the interior cavity below the transmitter coil arrangement, the interconnection structure including a plurality of packaged electrical components mounted on the interconnection structure and configured to operate the plurality of transmitter coils during wireless power transfer, where the plurality of packaged electrical components is located below the transmitter coil arrangement; and a frame comprising a plurality of openings positioned corresponding to the plurality of packaged electrical components, each opening providing space within which a respective packaged electrical device is disposed.

公开(公告)号：US10651685B1

公开(公告)日：2020-05-12

申请号：US15273566

申请日：2016-09-22

Applicant: Apple Inc.

Inventor： Steven G. Herbst ,  Todd K. Moyer ,  Eric S. Jol ,  Christopher S. Graham ,  Christopher M. Pinciuc ,  Brandon R. Garbus

IPC: H02J50/10 ,  H02J50/12 ,  H02J50/40 ,  H02J50/70 ,  H02J50/90 ,  H02J7/02

Abstract: A wireless transmitter device is configurable and operable to transfer energy to multiple receiver devices at the same time. The transmitter device includes at least one layer of discrete transmitter coils. The wireless transmitter device is configured to enable one or more sections of a charging surface to transfer energy by selectively choosing one or more discrete transmitter coils in the wireless transmitter device based on the position of the receiver device on the charging surface. The size and shape of each section of the charging surface that is used to transfer energy to a receiver device can change dynamically based on each receiver device. Additionally, the process of transferring energy to each receiver device may be adjusted during energy transfer based on conditions specific to each receiver device.

公开(公告)号：US10601468B2

公开(公告)日：2020-03-24

申请号：US15697141

申请日：2017-09-06

Applicant: Apple Inc.

Inventor： Stefan A. Kowalski ,  Christopher S. Graham ,  Eric S. Jol

IPC: H02J7/00 ,  H04B5/00 ,  H01F27/36 ,  H01F27/38 ,  H01F27/28 ,  H01F38/14 ,  H02J50/40 ,  H02J50/10 ,  H02J7/02

Abstract: This disclosure relates to the inductive charging of portable electronic devices. In particular, a charging assembly is disclosed that allows a portable electronic device to be charged in multiple orientations with respect to a charging device. The charging assembly includes two or more separate inductive receiving coils. The inductive receiving coils can be arranged orthogonally with respect to one another by wrapping one or more secondary receiving coils around a primary receiving coil. By orienting the receiving coils orthogonally with respect to one another, the likelihood of at least one of the receiving coils being aligned with a charging field emitted by a charging device increases substantially.

公开(公告)号：US20190326782A1

公开(公告)日：2019-10-24

申请号：US16031858

申请日：2018-07-10

Applicant: Apple Inc.

Inventor： Christopher S. Graham ,  Matthew G. Czapar

IPC: H02J50/12 ,  H02J50/05 ,  H02J7/02 ,  H01F27/28 ,  H02J50/60

Abstract: A wireless power transmission system has a wireless power receiving device that is located on a charging surface of a wireless power transmitting device. The receiving device has a wireless power receiving coil and the transmitting device has a wireless power transmitting coil array. Control circuitry in the transmitting device uses inverter circuitry to supply alternating-current signals the coil array, thereby transmitting wireless power signals. Measurement circuitry coupled to the coil array makes impulse response measurements while the control circuitry uses the inverter circuitry to apply impulse signals to each of the coils. The control circuitry analyzes output from the measurement circuitry to detect the presence of a metal foreign object on the charging surface. In response to such a detection, the control circuitry reduces the power of subsequent impulse signals to minimize physical vibration and audible noise generated in the system by the metal foreign object.

公开(公告)号：US20190319475A1

公开(公告)日：2019-10-17

申请号：US16258464

申请日：2019-01-25

Applicant: Apple Inc.

Inventor： Christopher M. Pinciuc ,  Brandon R. Garbus ,  Steven G. Herbst ,  Todd K. Moyer ,  Chad A. Bossetti ,  Eric S. Jol ,  Christopher S. Graham

IPC: H02J7/02 ,  H02J50/90 ,  H02J50/12 ,  H02J50/70 ,  H02J50/10 ,  H02J50/40

Abstract: A wireless transmitter device is configurable and operable to transfer energy to multiple receiver devices at the same time. The transmitter device is configured to enable one or more sections of a charging surface to transfer energy by selectively choosing one or more conductive traces in the transmitter device based on the position of the receiver device on the charging surface. The size and shape of each section of the charging surface that is used to transfer energy to a receiver device can change dynamically based on each receiver device. Additionally, the process of transferring energy to each receiver device may be adjusted during energy transfer based on conditions specific to each receiver device.

公开(公告)号：US20190190324A1

公开(公告)日：2019-06-20

申请号：US16326883

申请日：2017-09-20

Applicant: Apple Inc.

Inventor： Chad A. Bossetti ,  Christopher S. Graham ,  David W. Ritter ,  Todd K. Moyer ,  Steven G. Herbst ,  Shimon Elkayam ,  Nileshbhai J. Shah ,  Stephen C. Terry ,  Zaki Moussaoui

IPC: H02J50/90 ,  H02J7/02 ,  H02J50/12 ,  H02J50/40 ,  G01D5/20 ,  G01D5/16 ,  G01D5/24

CPC classification number: H02J50/90 ,  G01D5/16 ,  G01D5/20 ,  G01D5/24 ,  H01L41/1132 ,  H02J7/025 ,  H02J50/10 ,  H02J50/12 ,  H02J50/40

Abstract: A wireless charging mat and method of operating the same. The wireless charging mat includes a detection system configured to determine a location and an orientation of an electronic device on the wireless charging mat. The location and orientation are determined based on detected locations of one or more structural features of the electronic device. The wireless charging mat is operated according to the detected location and orientation.

公开(公告)号：US10277043B2

公开(公告)日：2019-04-30

申请号：US15699965

申请日：2017-09-08

Applicant: Apple Inc.

Inventor： Christopher S. Graham ,  Demetrios B. Karanikos ,  Darshan R. Kasar ,  Paul J. Thompson ,  Eric S. Jol ,  Grant S. Haug ,  Karl Ruben F. Larsson ,  Stefan A. Kowalski

IPC: H02J5/00 ,  H02J7/00 ,  H02J7/02 ,  H04B5/00 ,  H05K9/00 ,  H01F27/28 ,  H01F27/32 ,  H02J50/10 ,  H02J50/40 ,  H02J50/60 ,  H02J50/70

Abstract: Embodiments describe a wireless charging device including a housing having a charging surface and first and second walls defining an interior cavity, and a transmitter coil arrangement disposed within the interior cavity and configured to generate a time-varying magnetic flux and an electric field during wireless power transfer, where each of the plurality of transmitter coils has a central axis positioned a lateral distance away from the central axes of all other transmitter coils of the plurality of transmitter coils. The wireless charging mat also includes an electromagnetic shield positioned between the transmitter coil arrangement and the first wall, an interconnection structure positioned within the interior cavity between the transmitter coil arrangement and the second wall, and a ferromagnetic shield positioned within the interior cavity between the transmitter coil arrangement and the interconnection structure, the ferromagnetic shield is configured to redirect the magnetic flux away from the interconnection structure.