Multi-level buck converter with reverse charge capability

    公开(公告)号:US10530256B1

    公开(公告)日:2020-01-07

    申请号:US16206327

    申请日:2018-11-30

    摘要: Power converters and method with reverse charge capability are presented. A power converter operates either in a buck mode for transferring electrical power from a first terminal of the power converter to a second terminal of the power converter, or in a boost mode for transferring electrical power from the second terminal of the power converter to the first terminal of the power converter. The power converter has several switching elements, a flying capacitor, an inductor, and a control unit. The switching elements couple the first terminal of the power converter and the flying capacitor, couple the first terminal of the flying capacitor and a first terminal of the inductor, couple the first terminal of the inductor and a second terminal of the flying capacitor and couple the second terminal of the flying capacitor and a reference potential. The control unit controls the switching elements.

    Applying Alternate Modes of USB Type-C for Fast Charging Systems

    公开(公告)号:US20180254648A1

    公开(公告)日:2018-09-06

    申请号:US15446131

    申请日:2017-03-01

    发明人: Lasse Harju

    IPC分类号: H02J7/00 G01R31/36

    摘要: A system for charging a battery of an electronic device is presented. The system uses a power adaptor, with USB interfaces in the electronic device and in the power adaptor. The electronic device includes a charging control unit coupled with the first USB interface and the battery. The charging control unit receives an analog charging parameter of the charging system and forwards this parameter to an analog data port of the first USB interface. The charging control unit is controlled by a control signal received from the power adaptor. The power adaptor comprises a power converter to convert a mains voltage to a USB supply voltage to be provided to the electronic device via a power supply port of the first and the second USB interface. The power adaptor also includes a controller to control the power converter to allow charging of the battery using the USB supply voltage.

    Battery charging for mobile devices

    公开(公告)号:US10461555B2

    公开(公告)日:2019-10-29

    申请号:US15598558

    申请日:2017-05-18

    IPC分类号: H02J7/00

    摘要: A wired connection, such as USB-C, for charging a sink from a source, has a configuration channel and a power transmission channel. The presence of data on the configuration channel is used to determine that a cable has been disconnected from the power source. This charging system contains a capacitive power converter and a controller for controlling the capacitive power converter. There is also a configuration channel detector, which is arranged to detect the status of the configuration channel and to provide this status to the controller, so that the system can determine that the source has been detached from the bus when no configuration channel data is present.

    Battery Charging for Mobile Devices
    4.
    发明申请

    公开(公告)号:US20180337541A1

    公开(公告)日:2018-11-22

    申请号:US15598558

    申请日:2017-05-18

    IPC分类号: H02J7/00

    摘要: A wired connection, such as USB-C, for charging a sink from a source, has a configuration channel and a power transmission channel. The presence of data on the configuration channel is used to determine that a cable has been disconnected from the power source. This charging system contains a capacitive power converter and a controller for controlling the capacitive power converter. There is also a configuration channel detector, which is arranged to detect the status of the configuration channel and to provide this status to the controller, so that the system can determine that the source has been detached from the bus when no configuration channel data is present.

    Method and apparatus for powering a portable device

    公开(公告)号:US09705559B2

    公开(公告)日:2017-07-11

    申请号:US14537439

    申请日:2014-11-10

    摘要: A method of monitoring a process of powering a portable device through a cable connected between a power supply and a portable device is presented. The method includes applying a time-dependent current variation to one end of the cable in accordance with a spreading sequence, detecting a time-dependent voltage variation at the one end of the cable, the time dependent voltage variation resulting from the applying of the time-dependent current variation, and determining a quantity indicative of an impedance of the cable assembly based on the time-dependent voltage variation and the spreading sequence. Further, an apparatus for monitoring a process of powering a portable device through a cable connected between a power supply and a portable device is presented.

    Method and Apparatus for Powering a Portable Device
    6.
    发明申请
    Method and Apparatus for Powering a Portable Device 有权
    为便携式设备供电的方法和装置

    公开(公告)号:US20160134381A1

    公开(公告)日:2016-05-12

    申请号:US14537439

    申请日:2014-11-10

    IPC分类号: H04B17/00 H04B1/69

    摘要: A method of monitoring a process of powering a portable device through a cable connected between a power supply and said portable device is proposed, the method comprising applying a time-dependent current variation to one end of the cable in accordance with a spreading sequence, detecting a time-dependent voltage variation at the one end of the cable, the time dependent voltage variation resulting from said applying of the time-dependent current variation, and determining a quantity indicative of an impedance of the cable assembly based on the time-dependent voltage variation and the spreading sequence. Further, an apparatus for monitoring a process of powering a portable device through a cable connected between a power supply and said portable device is proposed.

    摘要翻译: 提出了一种监视通过连接在电源和所述便携式设备之间的电缆为便携式设备供电的过程的方法,所述方法包括根据扩展顺序对电缆的一端应用时间相关的电流变化,检测 电缆一端的随时间变化的电压变化,由所述施加时间相关电流变化导致的与时间有关的电压变化,以及基于时间相关电压确定指示电缆组件的阻抗的量 变化和扩展序列。 此外,提出了一种用于监视通过连接在电源和所述便携式设备之间的电缆为便携式设备供电的过程的设备。