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公开(公告)号：US20160352225A1
公开(公告)日：2016-12-01
申请号：US15145642
申请日：2016-05-03
Applicant: Apple Inc.
Inventor： Jamie L. LANGLINAIS , Mark A. YOSHIMOTO
Abstract: This application relates to a power converter for a computing device. The power converter can maintain an average output current while also allowing the output current to reach a peak current limit for periods of time. The average output current is maintained by enforcing a dynamic current limit on the output current. The dynamic current limit can change over time depending on whether the average output current is above or below an average current threshold. The changes to the dynamic current limit can occur at a rate defined by one or more time constants in order to reduce electromigration and maintain a temperature of the power converter below a predetermined temperature threshold.
Abstract translation: 本申请涉及一种用于计算设备的功率转换器。 电源转换器可以保持平均输出电流，同时还允许输出电流在一段时间内达到峰值电流限制。 通过对输出电流实施动态电流限制来维持平均输出电流。 根据平均输出电流是否高于或低于平均电流阈值，动态电流限制可随时间而变化。 动态电流限制的变化可以以由一个或多个时间常数限定的速率发生，以便减少电迁移并将功率转换器的温度保持在预定温度阈值以下。
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公开(公告)号：US20170063122A1
公开(公告)日：2017-03-02
申请号：US15261831
申请日：2016-09-09
Applicant: Apple Inc.
Inventor： Mark A. YOSHIMOTO , Talbott M. HOUK , Jamie L. LANGLINAIS
IPC: H02J7/00
CPC classification number: H02J7/0052 , H02J7/0068 , H02J7/007 , H02J7/022 , Y02B40/90 , Y02B70/1491 , Y02B70/16
Abstract: The embodiments discussed herein relate to systems, methods, and apparatus for providing a charger capable of adaptively handling a range of power inputs. The charger can selectively activate different control switches within the charger in order to more efficiently use current supplied to the charger. When a low power input is provided to the charger, the charger can reduce the number of active control switches being used to provide a voltage output from the charger. In this way, the capacitance required to toggle the control switches can be reduced. When a high power input is provided to the charger, the number of active control switches can be increased in order to increase a total amount of charge that can be provided from the charger, thereby reducing charge times for batteries.
Abstract translation: 本文讨论的实施例涉及用于提供能够自适应地处理一系列功率输入的充电器的系统，方法和装置。 充电器可以选择性地激活充电器内的不同的控制开关，以便更有效地使用提供给充电器的电流。 当向充电器提供低功率输入时，充电器可以减少用于提供来自充电器的电压输出的主动控制开关的数量。 以这种方式，可以减少切换控制开关所需的电容。 当向充电器提供高功率输入时，可以增加有源控制开关的数量，以便增加可从充电器提供的总电荷量，从而减少电池的充电时间。
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公开(公告)号：US20150194821A1
公开(公告)日：2015-07-09
申请号：US14538729
申请日：2014-11-11
Applicant: Apple Inc.
Inventor： Mark A. YOSHIMOTO , Talbott M. HOUK , Jamie L. LANGLINAIS
IPC: H02J7/00
CPC classification number: H02J7/0052 , H02J7/0068 , H02J7/007 , H02J7/022 , Y02B40/90 , Y02B70/1491 , Y02B70/16
Abstract: The embodiments discussed herein relate to systems, methods, and apparatus for providing a charger capable of adaptively handling a range of power inputs. The charger can selectively activate different control switches within the charger in order to more efficiently use current supplied to the charger. When a low power input is provided to the charger, the charger can reduce the number of active control switches being used to provide a voltage output from the charger. In this way, the capacitance required to toggle the control switches can be reduced. When a high power input is provided to the charger, the number of active control switches can be increased in order to increase a total amount of charge that can be provided from the charger, thereby reducing charge times for batteries.
Abstract translation: 本文讨论的实施例涉及用于提供能够自适应地处理一系列功率输入的充电器的系统，方法和装置。 充电器可以选择性地激活充电器内的不同的控制开关，以便更有效地使用提供给充电器的电流。 当向充电器提供低功率输入时，充电器可以减少用于提供来自充电器的电压输出的主动控制开关的数量。 以这种方式，可以减少切换控制开关所需的电容。 当向充电器提供高功率输入时，可以增加有源控制开关的数量，以便增加可从充电器提供的总电荷量，从而减少电池的充电时间。
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