Using pulsed biases to represent DC bias for charging

    公开(公告)号:US10404235B2

    公开(公告)日:2019-09-03

    申请号:US15610202

    申请日:2017-05-31

    Applicant: Apple Inc.

    Abstract: Power transfer systems including a direct current source and a plurality of outputs operable in several modes. A ground mode may couple an output to circuit ground and a current mode may couple the output to the direct current source. The power transfer system may also include a controller configured to iteratively select a pair of outputs from the plurality of outputs. Once a pair is selected, the controller may set a first output of the pair of outputs to the current mode and the second to ground mode for a determined duration. After the duration has passed, the controller may set the first output to the ground mode and the second output to the current mode for the same duration. Thereafter the controller may select another pair of outputs.

    Operating an inductive energy transfer system

    公开(公告)号:US10193372B2

    公开(公告)日:2019-01-29

    申请号:US14795723

    申请日:2015-07-09

    Applicant: Apple Inc.

    Abstract: A receiver device in an inductive energy transfer system can include a touch sensing device. If the input surface of the touch sensing device is touched, a transmitter device can periodically stop transferring energy to allow the touch sensing device to sense touch samples while inductive energy transfer is inactive. Additionally or alternatively, a transmitter device can produce an averaged duty cycle by transferring energy to the receiver device for one or more periods at a first duty cycle step and for one or more periods at different second first duty cycle step. Additionally or alternatively, a transmitter device can reduce a current level received by a DC-to-AC converter if the current received by the DC-to-AC converter equals or exceeds a threshold. Additionally or alternatively, a transmitter device can ping a receiver device and transfer energy only after a response signal is received from the receiver device.

    Using pulsed biases to represent DC bias for charging

    公开(公告)号:US09673784B2

    公开(公告)日:2017-06-06

    申请号:US14086737

    申请日:2013-11-21

    Applicant: Apple Inc.

    CPC classification number: H03K3/01 H03K5/04 H03K5/13 Y10T307/747

    Abstract: Power transfer systems including a direct current source and a plurality of outputs operable in several modes. A ground mode may couple an output to circuit ground and a current mode may couple the output to the direct current source. The power transfer system may also include a controller configured to iteratively select a pair of outputs from the plurality of outputs. Once a pair is selected, the controller may set a first output of the pair of outputs to the current mode and the second to ground mode for a determined duration. After the duration has passed, the controller may set the first output to the ground mode and the second output to the current mode for the same duration. Thereafter the controller may select another pair of outputs.

    Reducing the Impact of an Inductive Energy Transfer System on a Touch Sensing Device
    25.
    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。

    MAGNETIC CONNECTION AND ALIGNMENT OF CONNECTIBLE DEVICES
    26.
    发明申请
    MAGNETIC CONNECTION AND ALIGNMENT OF CONNECTIBLE DEVICES 有权
    连接器件的磁连接和对准

    公开(公告)号:US20150270046A1

    公开(公告)日:2015-09-24

    申请号:US14666556

    申请日:2015-03-24

    Applicant: Apple Inc.

    Abstract: A first and second electronic device each including a connection surface and a magnetic element. The first and second devices may be in contact along the respective connection surfaces. The magnetic elements may be configured to align the first and second devices by moving either or both of the first and second devices relative to each other to achieve an aligned position. The magnetic element may also be operative to resist disconnection of first and second electronic devices when in the aligned position.

    Abstract translation: 第一和第二电子设备,每个包括连接表面和磁性元件。 第一和第二装置可以沿着相应的连接表面接触。 磁性元件可以被配置为通过相对于彼此移动第一和第二装置中的任一个或两者来对准第一和第二装置以实现对准位置。 磁性元件还可以用于在对准位置时抵抗第一和第二电子设备的断开。

    ADJUSTING FILTER IN A COUPLED COIL SYSTEM
    27.
    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。

    Using Pulsed Biases to Represent DC Bias for Charging
    28.
    发明申请
    Using Pulsed Biases to Represent DC Bias for Charging 有权
    使用脉冲偏压代表直流偏置充电

    公开(公告)号:US20150137617A1

    公开(公告)日:2015-05-21

    申请号:US14086737

    申请日:2013-11-21

    Applicant: Apple Inc.

    CPC classification number: H03K3/01 H03K5/04 H03K5/13 Y10T307/747

    Abstract: Power transfer systems including a direct current source and a plurality of outputs operable in several modes. A ground mode may couple an output to circuit ground and a current mode may couple the output to the direct current source. The power transfer system may also include a controller configured to iteratively select a pair of outputs from the plurality of outputs. Once a pair is selected, the controller may set a first output of the pair of outputs to the current mode and the second to ground mode for a determined duration. After the duration has passed, the controller may set the first output to the ground mode and the second output to the current mode for the same duration. Thereafter the controller may select another pair of outputs.

    Abstract translation: 电力传输系统包括直流电源和可在多种模式下操作的多个输出。 接地模式可以将输出耦合到电路接地,并且电流模式可以将输出耦合到直流电源。 功率传输系统还可以包括被配置为从多个输出中迭代地选择一对输出的控制器。 一旦选择了一对,则控制器可以将一对输出的第一输出设置为当前模式和第二对地模式一段确定的持续时间。 在持续时间过后,控制器可以将第一个输出设置为接地模式,并将第二个输出设置为相同持续时间的当前模式。 此后,控制器可以选择另一对输出。

    Reducing Power Dissipation in Inductive Energy Transfer Systems
    29.
    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。

    Voltage supply to a load and battery

    公开(公告)号:US11456669B2

    公开(公告)日:2022-09-27

    申请号:US16988006

    申请日:2020-08-07

    Applicant: Apple Inc.

    Abstract: Implementations described and claimed herein provide systems and methods for supplying voltage to a load and battery. In one implementation, a first regulated DC-to-DC converter is electrically connected to a first energy source to down convert a first voltage supplied by the first energy source. A load is electrically connected to the first regulated DC-to-DC converter to receive the down converted first voltage. A second regulated DC-to-DC converter is electrically connected to the first regulated DC-to-DC converter to regulate the down converted first voltage to a second voltage. A second power source is electrically connected to the second regulated DC-to-DC converter to charge the second power source using the second voltage, and the second power source is switchably connectable to the load.

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