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    MANAGING POWER IN A PORTABLE DEVICE COMPRISING MULTIPLE BATTERIES
    1.
    发明公开
    MANAGING POWER IN A PORTABLE DEVICE COMPRISING MULTIPLE BATTERIES 审中-公开

    公开(公告)号：US20230268763A1

    公开(公告)日：2023-08-24

    申请号：US18142525

    申请日：2023-05-02

    申请人： O2Micro, Inc.

    发明人： Guoxing LI

    IPC分类号： H02J7/36 ,  H02J7/00

    CPC分类号： H02J7/36 ,  H02J7/0013

    摘要： In a portable device, a first battery has a positive terminal coupled to, through a first switch, an interface used to receive input power, and a negative terminal coupled to a reference terminal. A second battery has a positive terminal coupled to the interface, and a negative terminal coupled to the reference terminal through a second switch, and to the first battery’s positive terminal through a third switch. A control circuitry controls the switches such that the device has multiple operation modes including at least a one-battery charging mode and a two-battery-in-series charging mode. In the one-battery charging mode, the circuitry turns off the third switch, and controls the other switches such that one battery is charged by the input power. In the two-battery-in-series charging mode, the control circuitry turns on the third switch and turns off the other switches, such that two batteries are charged by the input power.

    POWER SWITCHING DEVICE AND APPLICATION THEREOF
    2.
    发明申请
    POWER SWITCHING DEVICE AND APPLICATION THEREOF 有权

    公开(公告)号：US20230133914A1

    公开(公告)日：2023-05-04

    申请号：US17912047

    申请日：2021-03-16

    申请人： Globe (Jiangsu) Co., Ltd.

    发明人： Chuntao LU ,  An YAN

    IPC分类号： H02J7/36 ,  H02J7/00

    摘要： A power switching device, an electric energy storage system and an electric tool system are provided. The power switching device includes a plug connected to a power supply device and including an output terminal; and a power switching assembly connected to the plug and including a power switching member, the switching member is used for switching a coupling form of the plug. The power switching assembly further includes a control member for controlling the power switching assembly to move between different switching positions. The control member includes a switching button, and the switching position of the power switching assembly is switched by pressing the switching button.

    Battery control unit and battery system
    3.
    发明授权
    Battery control unit and battery system 有权

    公开(公告)号：US11469601B2

    公开(公告)日：2022-10-11

    申请号：US17014339

    申请日：2020-09-08

    申请人： YAZAKI CORPORATION

    发明人： Chihiro Ono ,  Takahiro Syouda

    IPC分类号： H02J7/00 ,  H02J7/36

    摘要： A battery control unit includes a plurality of switching units, a control unit, a charger configured to charge batteries, and a charging control unit. The plurality of switching units is respectively provided for a plurality of batteries connected in series, and are configured to switch between a connected state and a non-connected state. The connected state is a state that a corresponding battery is connected in series with other batteries and the non-connected state is a state that the corresponding battery is disconnected from a series connection with the other batteries. The control unit is configured to determine whether each voltage of the plurality of batteries reaches a charge end voltage during charging, and to control the switching unit corresponding to the battery which is determined to reach the charge end voltage to switch to the non-connected state.

    Efficiency based battery configurations
    4.
    发明授权
    Efficiency based battery configurations 有权

    公开(公告)号：US11264811B2

    公开(公告)日：2022-03-01

    申请号：US16077339

    申请日：2017-04-21

    申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    发明人： Suketu Partiwala ,  Monji G. Jabori ,  Stephen Ken Gustafson

    IPC分类号： H02J7/00 ,  H01M10/42 ,  H01M10/44 ,  H01M10/48 ,  H02J7/36

    摘要： A method is described in which electronic circuitry of a mobile device is powered by a plurality of battery cells that are selectably connectable in series and in parallel. The energy utilization of the circuitry is measured during operation. The power efficiency for series and parallel configurations of the battery cells is determined based on the measured energy utilization. The battery cells are configured in series or in parallel based on which of the series and parallel configurations is determined to provide a higher efficiency of energy utilization during operation.

    Voltage control circuit for a multiple stage DC power supply, and applications thereof
    8.
    发明授权
    Voltage control circuit for a multiple stage DC power supply, and applications thereof 失效
    用于多级直流电源的电压控制电路及其应用

    公开(公告)号：US5483433A

    公开(公告)日：1996-01-09

    申请号：US354771

    申请日：1994-12-12

    申请人： Tai-Her Yang

    发明人： Tai-Her Yang

    IPC分类号： H02J1/00 ,  H02J7/00 ,  H02J7/36 ,  H02M7/48 ,  H02M7/483 ,  H02M1/14

    CPC分类号： H02M7/483 ,  Y10T307/453 ,  Y10T307/653

    摘要： A voltage controller capable of generating a staircase voltage is made up of a plurality of energy storage devices series connected with respective solid state switch devices. The solid state switch devices can be turned on or off to connect different combinations of the batteries in series with the output of the controller, the voltage output being proportional to the number of batteries connected in series in any particular combination. By cycling between different switch combinations, and reversing the polarity of the output once every cycle, an approximated sine wave output can be obtained. By providing a voltage input, the device can also function as a voltage converter or transformer-like device. Individual steps can be pulse width modulated simply by controlling the switch combinations, and by adding a linear switch device at the input, analog modulation of the step voltages can be obtained.

    摘要翻译： 能够产生阶梯电压的电压控制器由与各固态开关装置连接的多个储能装置构成。 可以打开或关闭固态开关装置以将电池的不同组合与控制器的输出串联，电压输出与以任何特定组合串联连接的电池数成正比。 通过在不同的开关组合之间循环，并且每个周期反转输出的极性一次，可以获得近似的正弦波输出。 通过提供电压输入，该器件还可以用作电压转换器或类似变压器的器件。 单独的步骤可以通过控制开关组合来进行脉宽调制，并且通过在输入端添加线性开关器件，可以获得步进电压的模拟调制。

    Computer controlled motor vehicle battery circuit
    10.
    发明授权
    Computer controlled motor vehicle battery circuit 失效
    电脑控制机动车电池电路

    公开(公告)号：US4580081A

    公开(公告)日：1986-04-01

    申请号：US648145

    申请日：1984-09-07

    申请人： William R. Krueger ,  Gerald N. McAuliffe ,  George A. Schlageter

    发明人： William R. Krueger ,  Gerald N. McAuliffe ,  George A. Schlageter

    IPC分类号： B60L11/18 ,  H02J7/00 ,  H02P1/10 ,  H02J7/36

    CPC分类号： B60L11/1853 ,  H02J7/0063 ,  Y02T10/7005 ,  Y02T10/705 ,  Y10T307/538

    摘要： A motor vehicle powered by a DC motor has a pedal which is depressed by the driver to increase speed by actuating a tapping switch which has two sets of moving contacts cooperating with stationary contacts to progressively connect with the motor batteries from one or the other end of a bank of series connected batteries. An alternate action relay connected between said motor and the switch determines which of the two sets is connected in circuit with the motor. The relay has two positions to alternately connect one or the other of the tapping switch contact sets in circuit with said motor. A main solenoid switch is connected in series with the relay and the tapping switch. When the pedal is depressed, a foot switch operated by the pedal is operative to close a circuit enabling energization of the alternate action relay and the main solenoid switch. A microprocessor controls operation of the relay and the main solenoid. When the pedal is released, the foot switch opens the enabling circuit and provides a signal to the microprocessor to restart the microprocessor program. The program including a register which is incremented with each passage of the logic responds to the incremented count in the register to energize the relay on alternate counts.

    摘要翻译： 由直流电动机驱动的机动车辆具有由驾驶员压下的踏板，以通过致动分接开关来提高速度，该开关具有与固定触点协作的两组移动触点，以从电动机电池的一端或另一端逐渐连接 一串串联电池。 连接在所述电动机和开关之间的备用动作继电器确定两组中的哪一组与电动机连接。 继电器具有两个位置，以交替地将电路中的一个或另一个分接开关触点组与所述电动机连接。 主电磁开关与继电器和分接开关串联。 当踏板被按下时，由踏板操作的脚踏开关可操作以闭合电路，从而使交替动作继电器和主电磁开关通电。 微处理器控制继电器和主电磁铁的操作。 当踏板被释放时，脚踏开关打开使能电路，并向微处理器提供信号以重新启动微处理器程序。 包括随着逻辑的每次通过递增的寄存器的程序响应于寄存器中递增的计数，以使继电器在交替计数上通电。