Power management system and method for a portable device
    1.
    发明授权
    Power management system and method for a portable device 有权
    便携式设备的电源管理系统和方法

    公开(公告)号:US09472967B2

    公开(公告)日:2016-10-18

    申请号:US14448509

    申请日:2014-07-31

    Abstract: A method and circuit for avoiding a low voltage shutdown in a portable device due to a low voltage falsely indicating a discharged battery employs an input current sensing circuit to determine when a high current is being drawn by the portable device. When the portable device is drawing a high current from the battery, the shutdown function is at least temporarily suppressed. If, during the high current event, the battery behavior indicates that it is actually near fully discharged, the shutdown functionality can be enabled to shut down the portable device.

    Abstract translation: 用于避免由于低电压错误地指示放电的电池在便携式设备中的低电压关闭的方法和电路采用输入电流检测电路来确定便携式设备何时吸引高电流。 当便携式设备从电池中抽出高电流时,停机功能至少被暂时抑制。 如果在高电流事件期间,电池状态表明它实际上接近完全放电,则可以启用关机功能以关闭便携式设备。

    System, method, and apparatus for charging a battery-powered accessory from a primary battery-powered device

    公开(公告)号:US10148112B2

    公开(公告)日:2018-12-04

    申请号:US15278067

    申请日:2016-09-28

    Abstract: A system, method, and apparatus for charging primary battery-powered devices and battery-powered accessories tethered to the primary devices are disclosed. The two devices may include batteries of different types having different nominal voltages. A processing unit on the primary device may obtain state-of-charge information and other operating parameters of the batteries and may determine when to provide power to the accessory to charge its battery. The primary device may select its own battery, power provided by a charger to which it is coupled, or conditioned power as the source of charging energy provided to the accessory to charge its battery. Processing units on the two devices may adjust charging parameters to perform energy balancing while the batteries are simultaneously charged, based on operating parameters of the batteries, operating contexts of the devices, a charging prioritization scheme, or a current distribution scheme.

    CIRCUIT AND METHOD FOR AVOIDING SHUTDOWN OF A PORTABLE DEVICE DUE TO A FALSE LOW VOLTAGE CONDITION
    3.
    发明申请
    CIRCUIT AND METHOD FOR AVOIDING SHUTDOWN OF A PORTABLE DEVICE DUE TO A FALSE LOW VOLTAGE CONDITION 有权
    用于避免由于低电压条件导致的便携式设备关闭的电路和方法

    公开(公告)号:US20160036260A1

    公开(公告)日:2016-02-04

    申请号:US14448509

    申请日:2014-07-31

    Abstract: A method and circuit for avoiding a low voltage shutdown in a portable device due to a low voltage falsely indicating a discharged battery employs an input current sensing circuit to determine when a high current is being drawn by the portable device. When the portable device is drawing a high current from the battery, the shutdown function is at least temporarily suppressed. If, during the high current event, the battery behavior indicates that it is actually near fully discharged, the shutdown functionality can be enabled to shut down the portable device.

    Abstract translation: 用于避免由于低电压错误地指示放电的电池在便携式设备中的低电压关闭的方法和电路采用输入电流检测电路来确定便携式设备何时吸引高电流。 当便携式设备从电池中抽出高电流时,停机功能至少被暂时抑制。 如果在高电流事件期间,电池状态表明它实际上接近完全放电,则可以启用关机功能以关闭便携式设备。

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