公开(公告)号：US11283278B2

公开(公告)日：2022-03-22

申请号：US16664274

申请日：2019-10-25

Applicant: Apple Inc.

Inventor： Soham Banerjee ,  Jeyakkrishnan Chengleput Srinivasan ,  Kirill Kalinichev ,  Antonio De Lima Fernandes ,  Jason Brinsfield ,  Mary-Ann Ionascu

IPC: H02J7/00 ,  G06F1/26 ,  G06F1/30

Abstract: An electronic system can include a charged system and a charging system. The charged system can include a charger and a battery configured to be charged thereby. The charger may be configured to receive power from a charging system that includes a power converter configured to supply power to the charger and a controller configured to control the power converter. The controller may be configured to receive feedback information from the charged system, including one or more voltages. The controller may be further configured to determine an output voltage compensation value for the power converter as a function of the feedback information and to set an output voltage of the power converter as a function of the compensation value. The compensation value and output voltage may be selected to maintain a preselected headroom between a battery charging target voltage of the charger and a voltage supplied to the charger.

公开(公告)号：US20210126470A1

公开(公告)日：2021-04-29

申请号：US16664274

申请日：2019-10-25

Applicant: Apple Inc.

Inventor： Soham Banerjee ,  Jeyakkrishnan Chengleput Srinivasan ,  Kirill Kalinichev ,  Antonio De Lima Fernandes ,  Jason Brinsfield ,  Mary-Ann Ionascu

IPC: H02J7/00 ,  G06F1/26 ,  G06F1/30

Abstract: An electronic system can include a charged system and a charging system. The charged system can include a charger and a battery configured to be charged thereby. The charger may be configured to receive power from a charging system that includes a power converter configured to supply power to the charger and a controller configured to control the power converter. The controller may be configured to receive feedback information from the charged system, including one or more voltages. The controller may be further configured to determine an output voltage compensation value for the power converter as a function of the feedback information and to set an output voltage of the power converter as a function of the compensation value. The compensation value and output voltage may be selected to maintain a preselected headroom between a battery charging target voltage of the charger and a voltage supplied to the charger.

公开(公告)号：US11089398B1

公开(公告)日：2021-08-10

申请号：US16902805

申请日：2020-06-16

Applicant: Apple Inc.

Inventor： Kartik R. Venkatraman ,  Mary-Ann Ionascu ,  Felix T. Tristram ,  Andres Y. Chabolla ,  Antonio De Lima Fernandes

IPC: H04R1/10

Abstract: A method of controlling charging of a wireless headphone device includes estimating a usage time value that corresponds to an anticipated future occurrence of usage of the wireless headphone device and estimating a resume time value that corresponds to a time for charging to commence to allow for completion of charging from a first predetermined state of charge value to a second predetermined state of charge value by the usage time value. The method also includes determining that the wireless headphone device has been placed in a charging case. A battery of the wireless headphone device is charged to the first predetermined state of charge value and then enters a deactivated mode, wherein the charging case is configured to return the wireless headphone device to an activated mode according to the resume time value.

公开(公告)号：US11984749B2

公开(公告)日：2024-05-14

申请号：US17354946

申请日：2021-06-22

Applicant: Apple Inc.

Inventor： Kartik R. Venkatraman ,  Mary-Ann Rau ,  Felix T. Tristram ,  Andres Y. Chabolla ,  Antonio De Lima Fernandes

IPC: H02J7/00 ,  H04R1/10 ,  H04W52/02

CPC classification number: H02J7/0071 ,  H02J7/0044 ,  H02J7/00712 ,  H04R1/1016 ,  H04R1/1025 ,  H04R1/1041 ,  H04W52/0229 ,  H04R2420/07

Abstract: A method of controlling charging of an electronic device includes estimating a usage time value that corresponds to an anticipated future occurrence of usage of the electronic device; and estimating a resume time value that corresponds to a time for charging to commence to allow for completion of charging from a first predetermined state of charge value to a second predetermined state of charge value by the usage time value. The method also includes charging a battery of the electronic device using electrical power supplied by a charging device until a current state of charge of the battery reaches the first predetermined state of charge value, entering, by the electronic device, a deactivated mode after the current state of charge reaches the first predetermined state of charge value, and causing the electronic device to return to the activated mode according to the resume time value.

公开(公告)号：US20210391739A1

公开(公告)日：2021-12-16

申请号：US17354946

申请日：2021-06-22

Applicant: Apple Inc.

Inventor： Kartik R. Venkatraman ,  Mary-Ann Ionascu ,  Felix T. Tristram ,  Andres Y. Chabolla ,  Antonio De Lima Fernandes

IPC: H02J7/00 ,  H04W52/02 ,  H04R1/10

Abstract: A method of controlling charging of an electronic device includes estimating a usage time value that corresponds to an anticipated future occurrence of usage of the electronic device; and estimating a resume time value that corresponds to a time for charging to commence to allow for completion of charging from a first predetermined state of charge value to a second predetermined state of charge value by the usage time value. The method also includes charging a battery of the electronic device using electrical power supplied by a charging device until a current state of charge of the battery reaches the first predetermined state of charge value, entering, by the electronic device, a deactivated mode after the current state of charge reaches the first predetermined state of charge value, and causing the electronic device to return to the activated mode according to the resume time value.