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    Measuring Input Voltages From Reference Windings Of Power Converters With Limited On-Time
    13.
    发明申请
    Measuring Input Voltages From Reference Windings Of Power Converters With Limited On-Time 有权
    电源转换器的参考绕组测量输入电压有限的准时

    公开(公告)号：US20160065080A1

    公开(公告)日：2016-03-03

    申请号：US14843777

    申请日：2015-09-02

    Applicant: Apple Inc.

    Inventor： Juan Carlos Pastrana ,  Manisha P. Pandya ,  Sameer G. Kelkar ,  Nicholas A. Sims

    IPC: H02M3/335 ,  G01R19/00

    CPC classification number: H02M3/33507 ,  G01R19/0084 ,  H02M2001/0022

    Abstract: The disclosed embodiments provide a system that operates switched-mode power supplies, such as flyback converters. The power supplies may comprise isolated or non-isolated power converters. During operation, the system senses an on-time of a primary switch in the power converter. Upon detecting that the on-time does not exceed an on-time threshold within a first pre-specified period that spans one or more switching cycles, the system extends the on-time during a subsequent switching cycle to at least meet the on-time threshold. The system may then measure the voltage on one or more reference windings of the power converter during the on-time of the subsequent switching cycle, wherein the reference winding may comprise, e.g., an auxiliary winding of the primary winding of the power converter or a secondary winding of the power converter (e.g., in the case of isolated power converters utilizing a transformer).

    Abstract translation: 所公开的实施例提供了操作开关模式电源的系统，例如反激式转换器。 电源可以包括隔离或非隔离的电力转换器。 在运行期间，系统检测电力转换器中的主开关的接通时间。 一旦检测到在一个或多个开关周期的第一个预定的周期内导通时间不超过准时间阈值，则系统在随后的切换周期期间延长导通时间，至少满足接通时间 阈。 然后，系统可以在随后的开关周期的接通时间期间测量功率转换器的一个或多个参考绕组上的电压，其中基准绕组可以包括例如功率转换器的初级绕组的辅助绕组或 功率转换器的二次绕组（例如，在使用变压器的隔离电力转换器的情况下）。

    Charging Systems with Direct Charging Port Support and Extended Capabilities
    14.
    发明申请
    Charging Systems with Direct Charging Port Support and Extended Capabilities 审中-公开
    具有直接充电端口支持和扩展功能的充电系统

    公开(公告)号：US20140239985A1

    公开(公告)日：2014-08-28

    申请号：US14268945

    申请日：2014-05-02

    Applicant: Apple Inc.

    Inventor： Nicholas A. Sims ,  Jeffrey J. Terlizzi ,  Alexei Kosut ,  Timothy Johnson ,  Barry Corlett

    IPC: G01R27/02

    CPC classification number: G01R27/02 ,  G01L1/205 ,  H02J7/042 ,  H02J2007/0062 ,  H02J2007/0096 ,  H02M7/02 ,  H02M7/53803 ,  H02M7/53846 ,  H02M7/539

    Abstract: An alternating current (AC) to direct current (DC) power converter may have a connector with a pair of power supply contacts and a pair of data contacts. An electronic device may be connected to the connector of the power converter. The power converter may supply DC power to the electronic device using the power supply contacts. The power converter may include control circuitry that has a resistor coupled across the data contacts. When the electronic device and the power converter are connected to each other, each may advertise to the other that capabilities are present that exceed industry standards. At the same time, standard-compliant discovery operations may be performed to probe the value of the resistance of the resistor that is coupled across the data contacts. When extended capabilities are discovered, extended functions may be performed including accelerated charging functions and data communications functions.

    Abstract translation: 直流（DC）电力转换器的交流（AC）可以具有与一对电源触点和一对数据触点的连接器。 电子设备可以连接到功率转换器的连接器。 电源转换器可以使用电源触点向电子设备提供直流电源。 功率转换器可以包括具有耦合在数据触点上的电阻的控制电路。 当电子设备和电源转换器彼此连接时，每个可以向另一个通告超出行业标准的能力。 同时，可以执行符合标准的发现操作来探测跨数据触点耦合的电阻器的电阻值。 当发现扩展能力时，可以执行扩展功能，包括加速计费功能和数据通信功能。

    Management of common mode noise frequencies in portable electronic devices
    16.
    发明授权
    Management of common mode noise frequencies in portable electronic devices 有权

    公开(公告)号：US10228793B2

    公开(公告)日：2019-03-12

    申请号：US15185729

    申请日：2016-06-17

    Applicant: Apple Inc.

    Inventor： Nicholas A. Sims

    IPC: G06F3/041 ,  H02M1/44 ,  H02M3/335 ,  G06F1/26

    Abstract: The disclosed embodiments provide a system that facilitates the use of a portable electronic device. During operation, the system detects a coupling of a power supply to the portable electronic device through a set of wires. Next, the system uses the set of wires to identify a type of the power supply. The system then periodically determines a switching frequency of the power supply based on the type of the power supply and a current drawn from the power supply. Finally, the system uses the switching frequency to facilitate the operation of a touch control in the portable electronic device. For example, if the switching frequency corresponds to a sensing frequency of the touch control, the system may change the sensing frequency to an alternative sensing frequency.

    Charging Systems with Direct Charging Port Support and Extended Capabilities
    17.
    发明申请
    Charging Systems with Direct Charging Port Support and Extended Capabilities 审中-公开

    公开(公告)号：US20170219641A1

    公开(公告)日：2017-08-03

    申请号：US15489467

    申请日：2017-04-17

    Applicant: Apple Inc.

    Inventor： Nicholas A. Sims ,  Jeffrey J. Terlizzi ,  Alexei Kosut ,  Timothy Johnson ,  Barry Corlett

    IPC: G01R27/02 ,  H02M7/53846 ,  H02M7/539 ,  H02M7/538

    Abstract: An alternating current (AC) to direct current (DC) power converter may have a connector with a pair of power supply contacts and a pair of data contacts. An electronic device may be connected to the connector of the power converter. The power converter may supply DC power to the electronic device using the power supply contacts. The power converter may include control circuitry that has a resistor coupled across the data contacts. When the electronic device and the power converter are connected to each other, each may advertise to the other that capabilities are present that exceed industry standards. At the same time, standard-compliant discovery operations may be performed to probe the value of the resistance of the resistor that is coupled across the data contacts. When extended capabilities are discovered, extended functions may be performed including accelerated charging functions and data communications functions.

    DYNAMIC POWER SHARING AMONG MULTIPLE PHYSICAL PORTS
    18.
    发明申请
    DYNAMIC POWER SHARING AMONG MULTIPLE PHYSICAL PORTS 审中-公开
    动态功率共享多个物理位置

    公开(公告)号：US20160336745A1

    公开(公告)日：2016-11-17

    申请号：US15154258

    申请日：2016-05-13

    Applicant: Apple Inc.

    Inventor： Manisha P. Pandya ,  Nicholas A. Sims

    IPC: H02J1/00 ,  H02J7/00

    CPC classification number: H02J1/00 ,  G06F1/263 ,  G06F1/266 ,  G06F1/305 ,  H02J7/0013 ,  H02J7/0052 ,  H02J7/0054 ,  H02J7/0068 ,  H02J7/0072 ,  H02J2007/0062 ,  H02J2007/0096

    Abstract: The disclosed embodiments provide a charging device. The charging device includes a battery, a first physical port and a management apparatus. The management apparatus determines a first type and a first state of a first load device connected to the first physical port and allocates power supplied to the first load device through the first physical port according to the first type and the first state of the first load device.

    Abstract translation: 所公开的实施例提供一种充电装置。 充电装置包括电池，第一物理端口和管理装置。 管理装置确定连接到第一物理端口的第一负载设备的第一类型和第一状态，并且根据第一类型和第一负载设备的第一状态分配通过第一物理端口提供给第一负载设备的电力 。

    POWER CONVERTER SYSTEM WITH SYNCHRONOUS RECTIFIER OUTPUT STAGE AND REDUCED NO-LOAD POWER CONSUMPTION
    19.
    发明申请
    POWER CONVERTER SYSTEM WITH SYNCHRONOUS RECTIFIER OUTPUT STAGE AND REDUCED NO-LOAD POWER CONSUMPTION 审中-公开
    具有同步整流器输出级的功率转换器系统和减少的无负载功耗

    公开(公告)号：US20140185335A1

    公开(公告)日：2014-07-03

    申请号：US14198507

    申请日：2014-03-05

    Applicant: Apple Inc.

    Inventor： Nicholas A. Sims ,  Jeffrey J. Terlizzi

    IPC: H02M3/335

    CPC classification number: H02M3/33507 ,  H02M3/33592 ,  Y02B70/1475

    Abstract: A power converter circuit may convert alternating current signals into direct current signals. A load may be powered from output terminals that are provided with the direct current signals. The power converter circuit may have a transformer with primary and secondary sides. A transistor on the primary side may be controlled using a pulse width modulation controller. A diode may be coupled in series with the secondary side of the transformer and the load. To improve efficiency at larger load currents, a synchronous rectifier control circuit may modulate a transistor on the secondary side that is coupled in parallel with the diode. The synchronous rectifier control circuit may monitor voltage pulses on the transistor on the secondary side or may make direct load current measurements to ascertain how much load current is flowing. Under low or no load conditions, synchronous rectification can be inhibited to improve efficiency.

    Abstract translation: 电力转换器电路可以将交流信号转换成直流电信号。 负载可以由具有直流信号的输出端子供电。 电力转换器电路可以具有一次侧和二次侧的变压器。 可以使用脉冲宽度调制控制器来控制初级侧的晶体管。 二极管可以与变压器的次级侧和负载串联耦合。 为了在较大负载电流下提高效率，同步整流器控制电路可以调制与二极管并联耦合的次级侧上的晶体管。 同步整流器控制电路可以监测次级侧上的晶体管上的电压脉冲，或者可以进行直接负载电流测量，以确定负载电流流动的程度。 在低负载条件下，可以抑制同步整流，提高效率。

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