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    Selective activation of a wireless transmitter device
    11.
    发明授权
    Selective activation of a wireless transmitter device 有权

    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.

    Operating a wireless power transfer system at multiple frequencies
    15.
    发明授权
    Operating a wireless power transfer system at multiple frequencies 有权

    公开(公告)号：US10135303B2

    公开(公告)日：2018-11-20

    申请号：US14281812

    申请日：2014-05-19

    Applicant: Apple Inc.

    Inventor： Todd K. Moyer ,  Jeffrey J. Terlizzi ,  Jeffrey M. Alves

    IPC: H02J50/12 ,  H02J50/40 ,  H02J5/00 ,  H02J7/02 ,  H02J50/80

    Abstract: A transmitter device in an inductive energy transfer system includes a first transmitter coil operatively connected to a first resonant circuitry. A receiver device includes a first receiver coil operatively connected to a first resonant circuitry. The first transmitter coil and the first receiver coil form a first transformer. The transmitter device, the receiver device, or both the transmitter and receiver devices can also include an auxiliary coil or inductor, which may form an auxiliary transformer. Energy can be transferred from the transmitter device to the receiver device using the first transformer or the auxiliary transformer. The transfer of energy may be adaptively adjusted based on the efficiency of the energy transfer. For example, the transfer of energy can be adjusted based on the operating conditions of the load.

    TEMPERATURE MANAGEMENT FOR INDUCTIVE CHARGING SYSTEMS
    18.
    发明申请
    TEMPERATURE MANAGEMENT FOR INDUCTIVE CHARGING SYSTEMS 审中-公开
    电感充电系统的温度管理

    公开(公告)号：US20150280483A1

    公开(公告)日：2015-10-01

    申请号：US14668551

    申请日：2015-03-25

    Applicant: Apple Inc.

    Inventor： Albert J. Golko ,  Eric S. Jol ,  Christopher S. Graham ,  Paul J. Thompson ,  Jeffrey M. Alves ,  Stephen E. Yao ,  Makiko K. Brzezinski ,  Todd K. Moyer ,  Daniel Wagman ,  Micah Lewis-Kraus

    IPC: H02J7/02 ,  H02J7/00

    CPC classification number: H02J50/10 ,  H01F27/025 ,  H01F27/22 ,  H01F38/14 ,  H02J7/0042 ,  H02J50/12 ,  H02J50/70 ,  H02J50/90

    Abstract: A thermal management system for an electromagnetic induction-power transfer system. The system may include a charging apparatus including a housing that defines an interface surface. An accessory or induction-power consuming apparatus may be positioned proximate to the interface surface. The housing of the charging apparatus may include a power source and a power-transferring coil coupled to the power source and positioned below the interface surface. A thermal mass may be positioned within the housing and spaced apart from the interface surface. The housing may include a thermal path that is configured to conduct heat from the interface surface to the thermal mass.

    Abstract translation: 一种用于电磁感应电力传输系统的热管理系统。 该系统可以包括充电装置，其包括限定界面的外壳。 附件或感应电力消耗装置可以位于接近表面附近。 充电装置的壳体可以包括电源和耦合到电源并定位在界面表面下方的动力传递线圈。 热质量可以定位在壳体内并与界面表面间隔开。 壳体可以包括热路径，其被配置为将热量从界面表面传导到热质量块。

    Efficient Wireless Power Transfer Control
    20.
    发明申请
    Efficient Wireless Power Transfer Control 有权

    公开(公告)号：US20220103015A1

    公开(公告)日：2022-03-31

    申请号：US17386542

    申请日：2021-07-28

    Applicant: Apple Inc.

    Inventor： Michael B. Nussbaum ,  Katherine I. Pregler ,  Liang Chen ,  Todd K. Moyer ,  Bingyao Sun

    IPC: H02J50/12 ,  H02J50/80

    Abstract: A wireless power transfer system can include a wireless power transmitter (PTx) and a wireless power receiver (PRx). The PTx can include a transmit coil driven by an inverter configured to receive an input DC voltage and provide an output AC voltage as a plurality of bursts. The PRx can include a receiver coil magnetically coupled to the transmit coil such that the bursts induce a corresponding AC voltage and a rectifier configured to receive the AC voltage and output a DC voltage to a load. The PRx can also include burst request pulse generation circuitry configured to operate the rectifier so as to deliver a burst request pulse to the PTx via magnetic coupling between coils. The PTx can further include inverter control circuitry configured to sense the burst request pulse and, in response thereto, trigger the inverter to deliver an AC voltage burst.

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