公开(公告)号：US10031189B1

公开(公告)日：2018-07-24

申请号：US15139985

申请日：2016-04-27

Applicant: Amazon Technologies, Inc.

Inventor： Thomas Gang Wang ,  Jesse Liang ,  Hanh Thuy Phan

IPC: G01R31/40 ,  G01R19/25 ,  G01R19/165

Abstract: This disclosure is directed to apparatuses, methods, and systems for detecting a capability of a power source connected to a device. For example, a device may include a standardized connector that may allow an unknown power source to provide power to the device. When a power source is connected with a device, a controller powers up and initiates power capability detection procedures. A ramping current sink begins drawing current from the power source at an initial value and increases that amount to a maximum current value. If a voltage on the device voltage bus falls below a voltage threshold during the ramping current sink operation, the current sink is disconnected and an indication is provided to the controller that the power source is underpowered. Further, a safety timer turns off the ramping current sink to prevent excessive heat generation.

公开(公告)号：US10203378B1

公开(公告)日：2019-02-12

申请号：US16008333

申请日：2018-06-14

Applicant: Amazon Technologies, Inc.

Inventor： Thomas Gang Wang ,  Jesse Liang ,  Hanh Thuy Phan

IPC: G01R31/40 ,  G01R19/165 ,  G01R19/25

Abstract: This disclosure is directed to apparatuses, methods, and systems for detecting a capability of a power source connected to a device. For example, a device may include a standardized connector that may allow an unknown power source to provide power to the device. When a power source is connected with a device, a controller powers up and initiates power capability detection procedures. A ramping current sink begins drawing current from the power source at an initial value and increases that amount to a maximum current value. If a voltage on the device voltage bus falls below a voltage threshold during the ramping current sink operation, the current sink is disconnected and an indication is provided to the controller that the power source is underpowered. Further, a safety timer turns off the ramping current sink to prevent excessive heat generation.

公开(公告)号：US09448613B1

公开(公告)日：2016-09-20

申请号：US13891016

申请日：2013-05-09

Applicant: Amazon Technologies, Inc.

Inventor： Edward Albert Liljegren ,  Hanh Thuy Phan ,  David Charles Buuck ,  John Aaron Zarraga

IPC: G06F1/32 ,  G08B6/00

CPC classification number: G06F1/3287 ,  G06F1/325 ,  G06F1/3296 ,  G06F3/016 ,  G08B6/00 ,  G08B29/18 ,  Y02D10/172

Abstract: A voltage control circuit in an electronic device receives an actuator identification signal from a personality module of an actuator in the electronic device. The voltage control circuit determines, based on the actuator identification signal, an operating voltage for the actuator and providing a drive signal at the operating voltage to the actuator.

Abstract translation: 电子设备中的电压控制电路从电子设备中的致动器的个性模块接收致动器识别信号。 电压控制电路基于致动器识别信号确定致动器的工作电压，并向致动器提供工作电压的驱动信号。