Adjusting filter in a coupled coil system

    公开(公告)号:US09923383B2

    公开(公告)日:2018-03-20

    申请号:US14627957

    申请日:2015-02-20

    Applicant: Apple Inc.

    Abstract: A receiver device in a coupled coil system for wireless energy transfer includes a receiver coil and a load device operatively connected to the receiver coil and configured to receive a signal from the receiver coil. As one example, the load device is a rechargeable battery. An adjusting filter is included in the receiver device and is operatively connected between the receiver coil and the load device. The adjusting filter can be used to transform the effective resistance or impedance of the load as presented to the transformer during energy transfer so that the effective resistant or impedance of the load is maintained at a substantially constant level, and the signal received by the load device is maintained at a substantially constant level.

    Reducing the Impact of an Inductive Energy Transfer System on a Touch Sensing Device
    36.
    发明申请
    Reducing the Impact of an Inductive Energy Transfer System on a Touch Sensing Device 有权
    降低感应能量传递系统对触摸感应装置的影响

    公开(公告)号:US20150349539A1

    公开(公告)日:2015-12-03

    申请号:US14502042

    申请日:2014-09-30

    Applicant: Apple Inc.

    Abstract: A transmitter device for an inductive energy transfer system can include a DC-to-AC converter operably connected to a transmitter coil, a first capacitor connected between the transmitter coil and one output terminal of the DC-to-AC converter, and a second capacitor connected between the transmitter coil and another output terminal of the DC-to-AC converter. One or more capacitive shields can be positioned between the transmitter coil and an interface surface of the transmitter device. A receiver device can include a touch sensing device, an AC-to-DC converter operably connected to a receiver coil, a first capacitor connected between the receiver coil and one output terminal of the AC-to-DC converter, and a second capacitor connected between the receiver coil and another output terminal of the AC-to-DC converter. One or more capacitive shields can be positioned between the receiver coil and an interface surface of the receiver device.

    Abstract translation: 用于感应能量传递系统的发射机装置可以包括可操作地连接到发射器线圈的DC-AC转换器,连接在发射器线圈和DC-AC转换器的一个输出端子之间的第一电容器,以及连接到DC- 连接在发射器线圈和DC-AC转换器的另一个输出端子之间。 一个或多个电容屏蔽可位于发射器线圈与发射器装置的接口表面之间。 接收机设备可以包括触摸感测设备,可操作地连接到接收器线圈的AC到DC转换器,连接在接收器线圈和AC-DC转换器的一个输出端子之间的第一电容器和连接到 在接收线圈与AC-DC转换器的另一输出端之间。 一个或多个电容屏蔽可以位于接收器线圈和接收器设备的接口表面之间。

    ADJUSTING FILTER IN A COUPLED COIL SYSTEM
    37.
    发明申请
    ADJUSTING FILTER IN A COUPLED COIL SYSTEM 有权
    调整滤波器在耦合线圈系统

    公开(公告)号:US20150244179A1

    公开(公告)日:2015-08-27

    申请号:US14627957

    申请日:2015-02-20

    Applicant: Apple Inc.

    Abstract: A receiver device in a coupled coil system for wireless energy transfer includes a receiver coil and a load device operatively connected to the receiver coil and configured to receive a signal from the receiver coil. As one example, the load device is a rechargeable battery. An adjusting filter is included in the receiver device and is operatively connected between the receiver coil and the load device. The adjusting filter can be used to transform the effective resistance or impedance of the load as presented to the transformer during energy transfer so that the effective resistant or impedance of the load is maintained at a substantially constant level, and the signal received by the load device is maintained at a substantially constant level.

    Abstract translation: 用于无线能量传递的耦合线圈系统中的接收器装置包括接收器线圈和可操作地连接到接收器线圈并被配置为从接收器线圈接收信号的负载装置。 作为一个示例,负载设备是可充电电池。 调节滤波器包括在接收器装置中并且可操作地连接在接收器线圈和负载装置之间。 调节滤波器可用于在能量传递期间将呈现的负载的有效电阻或阻抗转换为变压器,使得负载的有效电阻或阻抗保持在基本上恒定的水平,并且由负载装置接收的信号 维持在基本恒定的水平。

    Reducing Power Dissipation in Inductive Energy Transfer Systems
    38.
    发明申请
    Reducing Power Dissipation in Inductive Energy Transfer Systems 有权
    减少感应能量转移系统的功耗

    公开(公告)号:US20150097443A1

    公开(公告)日:2015-04-09

    申请号:US14503363

    申请日:2014-09-30

    Applicant: Apple Inc.

    CPC classification number: H02J50/80 H02J5/005 H02J7/025 H02J17/00 H02J50/10

    Abstract: In an inductive energy transfer system, the phase of a signal that is applied to a transmitter coil to transfer energy is adjusted while energy is transferred from the transmitter device to a receiver device. The phase of the signal can be adjusted by changing a state of a DC-to-AC converter from a converting state to a non-converting state. The DC-to-AC converter outputs a signal that is applied to the transmitter coil when the DC-to-AC converter is in a converting state. A signal is not applied to the transmitter coil when the DC-to-AC converter is in a non-converting state.

    Abstract translation: 在感应能量传递系统中,调节施加到发射器线圈以传递能量的信号的相位,同时能量从发射器装置传送到接收器装置。 可以通过将DC-AC转换器的状态从转换状态改变为非转换状态来调整信号的相位。 当DC-AC转换器处于转换状态时,DC-AC转换器输出施加到发送器线圈的信号。 当DC-AC转换器处于非转换状态时,不向发送器线圈施加信号。

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