SYSTEM AND METHOD FOR OPERATING A SYSTEM
    1.
    发明申请

    公开(公告)号:US20190252992A1

    公开(公告)日:2019-08-15

    申请号:US16335753

    申请日:2017-07-19

    摘要: In a system and method for operating a system having a rectifier which is supplyable from an electric AC-voltage supply network, an inverter which feeds an electric motor, and a DC/DC converter which is connected to an energy accumulator, the DC-voltage side connection of the inverter is connected to the DC-voltage side connection of the rectifier, in particular, the electric motor is supplied from the AC-voltage side connection of the inverter, a first DC-voltage side connection of the DC/DC converter is connected to the DC-voltage side connection of the rectifier, in particular, the DC-voltage side connection of the inverter and the first DC-voltage side connection of the DC/DC converter are connected in parallel, the DC/DC converter has a housing in which a device for current acquisition is situated, which acquires either the current, in particular network phase currents, flowing into the rectifier at the AC-voltage side connection of the rectifier, or the current emerging from the rectifier at the DC-voltage side connection of the rectifier, and the acquired value is forwarded to a signal electronics situated in the housing of the DC/DC converter, which generates control signals for semiconductor switches of the DC/DC converter.

    CHARGING CONTROL APPARATUS AND METHOD FOR ELECTRONIC DEVICE

    公开(公告)号:US20190222049A1

    公开(公告)日:2019-07-18

    申请号:US16361316

    申请日:2019-03-22

    摘要: A charging control apparatus and method for an electronic device are provided. During a process of charging, the power adapter first charges the battery with a constant-voltage direct current output, and then after the power adapter receives a quick-charging instruction, the power adapter adjusts an output voltage according to the voltage of the battery fed back by the charging control circuit, and if the output voltage meets a quick-charging voltage condition pre-set by the charging control circuit, the power adapter adjusts an output current and the output voltage respectively according to a preset quick-charging current value and a preset quick-charging voltage value for quick-charging the battery, and meanwhile the charging control circuit introduces direct current from the power adapter for charging the battery; during a process of quick-charging, the power adapter adjusts the output current in real time according to the output voltage thereof and the voltage of the battery.

    CHARGING APPARATUS WITH MULTIPLE POWER PATHS

    公开(公告)号:US20180375362A1

    公开(公告)日:2018-12-27

    申请号:US16006633

    申请日:2018-06-12

    摘要: A charging apparatus includes a DC switch circuit, a wireless power unit, a capacitive power conversion unit, and a switching power conversion unit. The charging apparatus operates in at least one of the following modes: in a constant current mode, the capacitive power conversion unit converts a bus current provided by the DC switch circuit or the wireless power unit to generate a predetermined constant charging current on a charging node to charge a battery; in a constant voltage mode, the switching power conversion unit converts a bus voltage provided by the DC switch circuit or the wireless power unit to generate a predetermined charging voltage on the charging node to charge the battery; in a first power output mode, the switching power conversion unit converts the battery voltage to generate an output voltage on a transmission interface pin.

    SYSTEMS AND METHODS FOR CONTROLLING BATTERY CURRENT

    公开(公告)号:US20180262023A1

    公开(公告)日:2018-09-13

    申请号:US15822876

    申请日:2017-11-27

    申请人: O2Micro Inc.

    发明人: Guoxing LI

    IPC分类号: H02J7/00

    摘要: A battery system comprising multiple battery packs. A battery pack of the battery packs includes a battery, voltage sense circuitry, a control circuit, a control switch and current regulation circuitry. The voltage sense circuitry senses a battery voltage of the battery and an input voltage of the battery pack. The control circuit is coupled to the sense circuitry and is operable for adjusting a level of a reference signal based on attribute data associated with the battery pack and a difference between the battery voltage and the input voltage. The control switch is operable for passing a battery current flowing through the battery. The current regulation circuitry is coupled to the control circuit and the control switch, and is operable for controlling the control switch to regulate the battery current according to the reference signal.