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    Using pulsed biases to represent DC bias for charging
    31.
    发明授权
    Using pulsed biases to represent DC bias for charging 有权

    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.

    Inventor： Brian C. Menzel ,  Jeffrey M. Alves ,  Kevin M. Keeler ,  Zachary C. Rich

    IPC: H03K3/01 ,  H03K5/04 ,  H03K5/13

    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.

    Using Pulsed Biases to Represent DC Bias for Charging
    33.
    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.

    Inventor： Brian C. Menzel ,  Jeffrey M. Alves ,  Kevin M. Keeler ,  Zachary C. Rich

    IPC: H02J1/00 ,  H03K3/01

    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。

    METHODS, SYSTEMS AND APPARATUS FOR DETERMINING WHETHER AN ACCESSORY INCLUDES PARTICULAR CIRCUITRY
    34.
    发明申请
    METHODS, SYSTEMS AND APPARATUS FOR DETERMINING WHETHER AN ACCESSORY INCLUDES PARTICULAR CIRCUITRY 有权
    用于确定包括特殊电路的附件的方法，系统和装置

    公开(公告)号：US20140125312A1

    公开(公告)日：2014-05-08

    申请号：US14151731

    申请日：2014-01-09

    Applicant: Apple Inc.

    Inventor： Scott Mullins ,  Alexei Kosut ,  Jeffrey J. Terlizzi ,  Zachary C. Rich

    IPC: G01N27/00

    CPC classification number: G01N27/00 ,  G01R19/0084 ,  G01R31/28 ,  G06F1/266 ,  G06F21/44 ,  G06F21/81 ,  H02H3/20 ,  H02H9/02 ,  H02J4/00 ,  H02J7/0031 ,  H02J7/0042 ,  H02J2007/0001 ,  H02J2007/0096 ,  H04M1/0274 ,  H04M1/04 ,  H04M1/72527 ,  Y10T307/74

    Abstract: Methods, systems, and apparatus for determining whether an accessory includes particular circuitry. A host device may measure a first voltage and a second voltage received from an accessory, where the voltages are provide through the accessory from a power source. Before measuring the second voltage, the host device may send an instruction to the accessory instructing the accessory to alter an impedance of the power path between the power source and the host device, and the host device may draw at least a threshold amount of current from the power source via the accessory. The host device may then determine whether the accessory includes particular circuitry based on the relationship between the first voltage and the second voltage.

    Abstract translation: 用于确定附件是否包括特定电路的方法，系统和装置。 主机设备可以测量从附件接收的第一电压和第二电压，其中电压通过附件从电源提供。 在测量第二电压之前，主机设备可以向附件发送指令，指示附件改变电源和主设备之间的电源路径的阻抗，并且主机设备可以从至少一个阈值量的电流 电源通过附件。 然后，主机设备可以基于第一电压和第二电压之间的关系来确定附件是否包括特定电路。

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