公开(公告)号：US11791646B1

公开(公告)日：2023-10-17

申请号：US17897444

申请日：2022-08-29

Applicant: Amazon Technologies, Inc.

Inventor： Ming Feng ,  Benjamin Gaide

IPC: H02J7/00 ,  H04R1/10

CPC classification number: H02J7/0071 ,  H02J7/00 ,  H02J7/0036 ,  H02J7/0042 ,  H04R1/1016

Abstract: A device including a first receptacle for receiving a first electronic device, a second receptacle for receiving a second electronic device, a first switching charger for fast charging the first electronic device, and a second switching charger for fast charging the second electronic device. The device may determine that the first electronic device is communicatively coupled to the device within the first receptacle and that the second electronic device is communicatively coupled to the device within the second receptacle. The device may receive a first request from the first electronic device to fast charge the first electronic device via the first switching charger and charge the first electronic device via the first switching charger. Additionally, the device may receive a second request from the second electronic device to fast charge the second electronic device via the second switching charger and charge the second electronic device via the second switching charger.

公开(公告)号：US11431185B1

公开(公告)日：2022-08-30

申请号：US16531740

申请日：2019-08-05

Applicant: Amazon Technologies, Inc.

Inventor： Ming Feng ,  Benjamin Gaide

IPC: H02J7/00 ,  H04R1/10

Abstract: A device including a first receptacle for receiving a first electronic device, a second receptacle for receiving a second electronic device, a first switching charger for fast charging the first electronic device, and a second switching charger for fast charging the second electronic device. The device may determine that the first electronic device is communicatively coupled to the device within the first receptacle and that the second electronic device is communicatively coupled to the device within the second receptacle. The device may receive a first request from the first electronic device to fast charge the first electronic device via the first switching charger and charge the first electronic device via the first switching charger. Additionally, the device may receive a second request from the second electronic device to fast charge the second electronic device via the second switching charger and charge the second electronic device via the second switching charger.

公开(公告)号：US10944271B1

公开(公告)日：2021-03-09

申请号：US16588021

申请日：2019-09-30

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Ming Feng ,  Benjamin Thomas Gaide

IPC: H02J7/00 ,  H01R13/22 ,  H03K5/24

Abstract: A first device, such as a charger, includes electrical contacts to supply power to a second device, such as a wearable device. The first device includes a detection circuit that measures a sense voltage proportional to an effective resistance, which includes resistances of the contacts, an internal resistance of the second device, and any contaminants between the contacts. When the sense voltage is within a range, the detection circuit determines the second device is compatible and correctly oriented and determines there are insufficient contaminants to alter the effective resistance. The first device de-energizes the contacts while the sense voltage is outside of a voltage range and provides a power supply to one or more of the contacts when the sense voltage is within the voltage range. In some aspects, the detection circuit may delay the power supply for a period of time to avoid false detection events.