公开(公告)号：US10958104B2

公开(公告)日：2021-03-23

申请号：US15518000

申请日：2015-10-08

Applicant: Apple Inc.

Inventor： Ali Abdolkhani ,  Aiguo Hu

IPC: H01F38/14 ,  H02J17/00 ,  H02J50/12 ,  H02J7/02 ,  H02J50/40

Abstract: An inductive power transmitter comprising a plurality of autonomous resonant inverters, wherein each inverter outputs a voltage to a respective transmitter coil/coils for inductive power transfer; and a magnetic coupling structure between the respective transmitter coils, wherein the magnetic coupling structure is configured to determine a phase shift between the output voltage of each inverter.

公开(公告)号：US20230369917A1

公开(公告)日：2023-11-16

申请号：US17814091

申请日：2022-07-21

Applicant: Apple Inc.

Inventor： Ali Abdolkhani

IPC: H02J50/80 ,  H02J50/10 ,  H02J7/00

CPC classification number: H02J50/80 ,  H02J50/10 ,  H02J7/00045 ,  H02J7/007

Abstract: A wireless power transmitter can include an inverter that receives input power and generates an AC output voltage, a wireless power transmitter coil coupled to the AC output that magnetically couples to a corresponding coil of a wireless power receiver, and a controller and communication module. The controller and communication module can receive identifying information from the wireless power receiver, receive voltage information from the wireless power receiver, compute a coupling factor with the wireless power receiver based at least in part on the received identifying information and the received voltage information, computes a power transfer level based on the computed coupling factor, and negotiate a power contract with the wireless power receiver based at least in part on the computed power transfer level.

公开(公告)号：US10020687B2

公开(公告)日：2018-07-10

申请号：US15113591

申请日：2015-01-22

Applicant: Apple Inc.

Inventor： Eugenio Jr. Sia Lecias ,  Junbo Zeng ,  Saining Ren ,  Daniel James Robertson ,  Michael Nasa ,  Ron Rafer Floresca ,  Arunim Kumar ,  Ali Abdolkhani

IPC: H02J50/12 ,  H02J50/40 ,  H01F38/14 ,  H02J7/02 ,  H02J5/00 ,  H02J50/80 ,  H02M7/06 ,  H02J50/70

CPC classification number: H02J50/12 ,  H01F38/14 ,  H02J5/005 ,  H02J7/025 ,  H02J50/40 ,  H02J50/70 ,  H02J50/80 ,  H02M7/06

Abstract: An inductive power transfer device including: a resonant circuit, having a power transfer coil and a power transfer capacitor; a coupling coil, magnetically-coupled to the power transfer coil; a variable impedance; and a controller configured to determine the impedance value of the variable impedance based on predetermined criteria including: substantially regulating power provided to a load; tuning the resonant circuit resonant frequency substantially to a predetermined frequency; adjusting a frequency of a magnetic field associated with the power transfer coil; and/or adjusting an impedance reflected by the power transfer coil to a corresponding coupled power transfer coil.

公开(公告)号：US10396596B2

公开(公告)日：2019-08-27

申请号：US15036656

申请日：2014-11-07

Applicant: Apple Inc.

Inventor： Ali Abdolkhani ,  Aiguo Hu ,  Ya-Ting Wang ,  Arunim Kumar

IPC: H02J7/00 ,  H02J7/14 ,  H02J50/12 ,  H02J50/40 ,  H01F38/14 ,  H02J7/02 ,  H04B5/00 ,  H02J5/00

Abstract: An inductive power transmitter having a plurality of transmitting coils for generating an alternating magnetic field arranged in a row with each transmitting coil partially overlapping with adjacent transmitting coils in the row. A transmitting circuit connected to each transmitting coil may drive the transmitting coils so that each transmitting coil's alternating magnetic field is phase shifted with respect to the alternating magnetic field of adjacent transmitting coils in the row or so that the alternating magnetic field generated by the transmitting coils travels along a charging surface.

公开(公告)号：US10269486B2

公开(公告)日：2019-04-23

申请号：US15312375

申请日：2015-05-14

Applicant: Apple Inc.

Inventor： Ali Abdolkhani ,  Aiguo Hu

IPC: H01F27/24 ,  H01F38/14 ,  H01F3/10 ,  H02J50/10 ,  H01F27/28 ,  H01F38/18

Abstract: An inductive power transfer coil arrangement comprising: a first coil assembly including: at least a first magnetically permeable core including a base having first and second limbs extending away therefrom, wherein the first limb is located between two second limbs and extends further from the base than the second limbs, and at least one coil wound about at least one limb; and a second coil assembly including: at least a second magnetically permeable core for use in an inductive power transfer system, including a base having first and second limbs extending away therefrom, wherein the first limb is located between two second limbs that extend further from the base than the second limbs; and at least one coil wound about at least one limb; the first and second magnetically permeable cores being arranged in relatively moveable relationship such that in some relative positions the first and second magnetically permeable cores are opposed such as to provide effective magnetic coupling.

公开(公告)号：US20180269726A1

公开(公告)日：2018-09-20

申请号：US15920137

申请日：2018-03-13

Applicant: Apple Inc.

Inventor： Ali Abdolkhani

IPC: H02J50/12

CPC classification number: H02J50/12 ,  H02J7/025 ,  H02J50/10 ,  H02M3/33507 ,  H02M3/33569 ,  H02M7/53871

Abstract: An inductive power transmitter comprising an power transfer circuit which includes a transmitter coil; and a power inverter including a plurality of control devices configured to drive the power transfer circuit; a controller configured to provide drive signals for the control devices, wherein the controller is programmed to estimate the power in the power transfer circuit; compare the estimated power to a predetermined power level; and calculate an adjustment to the drive signals based on the comparison, to adjust the power in the power transfer circuit to the predetermined power level.

公开(公告)号：US10325719B2

公开(公告)日：2019-06-18

申请号：US15312398

申请日：2015-05-14

Applicant: Apple Inc.

Inventor： Ali Abdolkhani ,  Aiguo Hu

IPC: H01F21/04 ,  H01F38/14 ,  H01F3/10 ,  H01F38/18 ,  H02J5/00 ,  H02J7/02

Abstract: An inductive power transfer coil assembly including: a magnetically permeable core including a base having a pair of spaced apart limbs extending therefrom; and a winding located between and above the pair of spaced apart limbs.

公开(公告)号：US20210099021A1

公开(公告)日：2021-04-01

申请号：US17066093

申请日：2020-10-08

Applicant: Apple Inc.

Inventor： Ali Abdolkhani

IPC: H02J50/60 ,  H02J50/10 ,  H02J50/12 ,  G06K19/077

Abstract: An inductive power transmitter comprising: at least one power transmitting coil configured to generate an inductive power transfer (IPT) field; and an object detection system configured to detect objects in or adjacent a space occupied by the
IPT field when generated; wherein the object detection system is configured to detect a receiver object based on a tag associated with the receiver object.

公开(公告)号：US10447090B1

公开(公告)日：2019-10-15

申请号：US15815267

申请日：2017-11-16

Applicant: Apple Inc.

Inventor： Ali Abdolkhani

IPC: H02J50/12 ,  H02J5/00 ,  H02J7/02 ,  H04B5/00 ,  H02M7/219 ,  H02J50/40 ,  H01F38/14 ,  H02M1/00

Abstract: An inductive power receiver, comprising: a receiving coil; a bridge circuit configured to connect to the receiving coil comprising: a first branch including a first semiconductor device; a second branch including a second semiconductor device; a third branch including a first capacitor; and a forth branch including a second capacitor, and a controller configured to control at least one of the first semiconductor device and the second semiconductor device to regulate power provided to a load.