公开(公告)号：US20170025879A1

公开(公告)日：2017-01-26

申请号：US15174371

申请日：2016-06-06

Applicant: APPLE INC.

Inventor： Paul M. Thompson ,  Parin Patel ,  Alan C. Cooney ,  Alexei E. Kosut ,  Glen A. Rhodes

IPC: H02J7/00 ,  G01R19/165 ,  H03K3/02

CPC classification number: G01R19/16538 ,  G06F1/266 ,  H03K19/01759

Abstract: Interface circuits that may utilize a limited number of pins to detect a presence of an accessory, determine whether the accessory can provide or receive power, communicate with the accessory regarding at least that transfer of power, and transfer power accordingly. One example may provide detection circuitry for a host that may detect the presence of a pull-down resistor on a data pin of an accessory. The pull-down may indicate that a power consuming accessory has been connected. This example may detect the presence of power on a power pin. The presence of the power on the power pin may indicate that a power providing accessory has been connected.

Abstract translation: 接口电路可以利用有限数量的引脚来检测附件的存在，确定附件是否可以提供或接收电力，至少与电力传递功率相关联并且相应地传递功率。 一个示例可以提供用于主机的检测电路，其可以检测附件的数据引脚上的下拉电阻的存在。 下拉可能表示已连接耗电附件。 该示例可以检测电源引脚上是否存在电源。 电源引脚上的电源的存在可能表示电源提供配件已经连接。

公开(公告)号：US20170025862A1

公开(公告)日：2017-01-26

申请号：US15174336

申请日：2016-06-06

Applicant: Apple Inc.

Inventor： Alexei E. Kosut ,  Paul M. Thompson ,  Parin Patel ,  Alan C. Cooney ,  Glen A. Rhodes

IPC: H02J4/00 ,  H02J7/00

CPC classification number: H02J7/0063 ,  H02J2007/0067

Abstract: Methods, circuits, and apparatus to distribute power among devices in an electronic system where a device may receive power from more than one source, may have a bidirectional power connector, or both. One example may resolve conflicts when an electronic device receives power from more than one source. In this example, the device may determine which source may provide the most power, and may select to receive power from the power source that may deliver the most power. Other examples may have a preference to receive power from a particular source or via a specific connector. Other examples may switch from receiving power over a first connector to providing power over the first connector, while others may receive and provide power over different connectors at the same time. Another may be connected to a battery, and may draw power from the battery or not depending on the type of battery.

Abstract translation: 在设备可以从多个源接收电力的电子系统中的设备之间分配功率的方法，电路和设备可以具有双向电力连接器或两者。 当电子设备从多个源接收电力时，一个例子可以解决冲突。 在该示例中，设备可以确定哪个源可以提供最大功率，并且可以选择从电源接收可能提供最大功率的功率。 其他示例可以优选地从特定源或经由特定连接器接收电力。 其他示例可以从第一连接器上的接收功率切换到在第一连接器上提供电力，而其他示例可以同时接收和提供不同连接器的电力。 另一个可以连接到电池，并且可以根据电池的类型从电池中获取电力。

公开(公告)号：US10404088B2

公开(公告)日：2019-09-03

申请号：US15174336

申请日：2016-06-06

Applicant: Apple Inc.

Inventor： Alexei E. Kosut ,  Paul M. Thompson ,  Parin Patel ,  Alan C. Cooney ,  Glen A. Rhodes

IPC: H02J7/00

Abstract: Methods, circuits, and apparatus to distribute power among devices in an electronic system where a device may receive power from more than one source, may have a bidirectional power connector, or both. One example may resolve conflicts when an electronic device receives power from more than one source. In this example, the device may determine which source may provide the most power, and may select to receive power from the power source that may deliver the most power. Other examples may have a preference to receive power from a particular source or via a specific connector. Other examples may switch from receiving power over a first connector to providing power over the first connector, while others may receive and provide power over different connectors at the same time. Another may be connected to a battery, and may draw power from the battery or not depending on the type of battery.

公开(公告)号：US10317436B2

公开(公告)日：2019-06-11

申请号：US15174371

申请日：2016-06-06

Applicant: APPLE INC.

Inventor： Paul M. Thompson ,  Parin Patel ,  Alan C. Cooney ,  Alexei E. Kosut ,  Glen A. Rhodes

IPC: H02J7/00 ,  H02J7/14 ,  G01R19/165 ,  H03K19/0175 ,  G06F1/26

Abstract: Interface circuits that may utilize a limited number of pins to detect a presence of an accessory, determine whether the accessory can provide or receive power, communicate with the accessory regarding at least that transfer of power, and transfer power accordingly. One example may provide detection circuitry for a host that may detect the presence of a pull-down resistor on a data pin of an accessory. The pull-down may indicate that a power consuming accessory has been connected. This example may detect the presence of power on a power pin. The presence of the power on the power pin may indicate that a power providing accessory has been connected.