POWER SUPPLY WITH CURRENT LIMIT ON INDIVIDUAL CONDUCTORS

    公开(公告)号:US20210021117A1

    公开(公告)日:2021-01-21

    申请号:US16983953

    申请日:2020-08-03

    Applicant: Apple Inc.

    Abstract: Circuits, methods, and apparatus that may provide power supply voltages in a safe and reliable manner that meets safety and regulatory concerns and does not exceed physical limitations of cables and other circuits and components used to provide the power supply voltages. One example may provide a cable having a sufficient number of conductors to provide power without exceeding a maximum current density for the conductors. Another example may provide a cable having more than the sufficient number of conductors in order to provide an amount of redundancy. Current sense circuits may be included for one or more conductors. When an excess current is sensed, a power source in the power supply may be shut down, the power source may be disconnected from one or more conductors, or both events may occur.

    POWER SUPPLY WITH CURRENT LIMIT ON INDIVIDUAL CONDUCTORS

    公开(公告)号:US20170288386A1

    公开(公告)日:2017-10-05

    申请号:US15506698

    申请日:2014-08-29

    Applicant: Apple Inc.

    Abstract: Circuits, methods, and apparatus that may provide power supply voltages in a safe and reliable manner that meets safety and regulatory concerns and does not exceed physical limitations of cables and other circuits and components used to provide the power supply voltages. One example may provide a cable having a sufficient number of conductors to provide power without exceeding a maximum current density for the conductors. Another example may provide a cable having more than the sufficient number of conductors in order to provide an amount of redundancy. Current sense circuits may be included for one or more conductors. When an excess current is sensed, a power source in the power supply may be shut down, the power source may be disconnected from one or more conductors, or both events may occur.

    MANAGING ACOUSTIC NOISE PRODUCED BY A DEVICE

    公开(公告)号:US20130272534A1

    公开(公告)日:2013-10-17

    申请号:US13913472

    申请日:2013-06-09

    Applicant: Apple Inc.

    CPC classification number: G10K11/16 G06F1/20 H05K7/20209

    Abstract: One embodiment of the present invention provides a system that manages the acoustic noise produced by a device. During operation, the system receives a set of acoustic characteristics for the device. The system then uses these acoustic characteristics to estimate the acoustic noise being generated by the device. Next, the system uses the estimated acoustic noise to adjust a setting in the device to manage the acoustic noise produced by the device.

    Method and apparatus for entry into low power state

    公开(公告)号:US09746904B2

    公开(公告)日:2017-08-29

    申请号:US14694906

    申请日:2015-04-23

    Applicant: Apple Inc.

    CPC classification number: G06F1/3253 G06F1/266 G06F1/3215 G06F1/3234

    Abstract: A method and apparatus for recovering from a low power state in a computing system is disclosed. In one embodiment of the method, the computing system enters the low power state from a standard power state after an activity detector indicates a user controlled peripheral device connected to the computer system has been inactive for a period of time. To enter the low power state, the method disconnects the user controlled peripheral device from a host controller, while continuing to supply power to the user controlled peripheral device and shutting off power to the host controller. The method returns the computer system to the standard power state when the activity detector indicates the user controlled peripheral device has become active. To return to the standard power state, power is restored to the host controller and the user controlled peripheral device is reconnected to the host controller.

    Managing acoustic noise produced by a device
    9.
    发明授权
    Managing acoustic noise produced by a device 有权
    管理由设备产生的声音噪声

    公开(公告)号:US09552804B2

    公开(公告)日:2017-01-24

    申请号:US13913472

    申请日:2013-06-09

    Applicant: Apple Inc.

    CPC classification number: G10K11/16 G06F1/20 H05K7/20209

    Abstract: One embodiment of the present invention provides a system that manages the acoustic noise produced by a device. During operation, the system receives a set of acoustic characteristics for the device. The system then uses these acoustic characteristics to estimate the acoustic noise being generated by the device. Next, the system uses the estimated acoustic noise to adjust a setting in the device to manage the acoustic noise produced by the device.

    Abstract translation: 本发明的一个实施例提供一种管理由设备产生的声学噪声的系统。 在操作期间,系统接收一组该设备的声学特性。 然后,系统使用这些声学特性来估计由设备产生的声学噪声。 接下来,系统使用估计的声学噪声来调整设备中的设置以管理由设备产生的声学噪声。

    Power supply acoustic noise mitigation
    10.
    发明授权
    Power supply acoustic noise mitigation 有权
    电源噪声减轻

    公开(公告)号:US09152193B2

    公开(公告)日:2015-10-06

    申请号:US13691678

    申请日:2012-11-30

    Applicant: Apple Inc.

    CPC classification number: G06F1/26

    Abstract: A method and system for reducing acoustic power supply noise, specifically acoustic noise related to power supply switching frequencies in a computing device, is disclosed. In one embodiment, a controller can monitor power consumed by the computing device, and an operational state of the computing device can be determined. If the computing device is in a first operational state and the power consumed is greater than a threshold amount, then the power supply can be operated at a first switching frequency or mode of operation, thereby avoiding switching frequencies that can produce acoustic noise.

    Abstract translation: 公开了一种用于降低声功率噪声的方法和系统,特别是与计算设备中的电源开关频率相关的声学噪声。 在一个实施例中,控制器可以监视由计算设备消耗的功率,并且可以确定计算设备的操作状态。 如果计算设备处于第一操作状态并且功耗大于阈值,则可以以第一开关频率或操作模式操作电源,从而避免可能产生声学噪声的开关频率。

Patent Agency Ranking