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    • 2. 发明公开
    • DISPLAY METHOD AND RELATED APPARATUS
    • EP3982246A1
    • 2022-04-13
    • EP20844858.9
    • 2020-07-21
    • Huawei Technologies Co., Ltd.
    • YI, JieGU, Hejin
    • G06F3/14
    • A display method and a related apparatus are disclosed. The display method is applied to an information interaction system. The information interaction system includes an electronic device (11) and a large-screen device (12). The method includes: The electronic device (11) obtains preset information, where the preset information includes information about an application installed on the electronic device (11), and the information about the application includes at least one of a name, an icon, and a package name of the application. The electronic device (11) generates a first window based on the preset information, where the first window includes any one of a plurality of desktops of the electronic device (11). The electronic device (11) sends the first window to the large-screen device (12), so that the large-screen device (12) displays a first user interface, where the first user interface includes the first window. This method can reduce an area that is occupied on a display of the large-screen device (12) by a projected window of the electronic device (11), and improve user experience.
    • 4. 发明公开
    • OFF-LINE PHASE SPLIT DEVICE AND INVERTER SYSTEM
    • EP3905509A1
    • 2021-11-03
    • EP20822724.9
    • 2020-03-25
    • Huawei Technologies Co., Ltd.
    • FENG, NingboYI, JieWANG, HangWANG, Qingyu
    • H02M7/5387
    • This application provides an off-grid phase splitter and an inverter system. In an embodiment, the off-grid phase splitter includes: a first input port and a second input port that are separately connected to a first phase port and a second phase port of a power supply; a first output port and a second output port provide a second voltage for a first load, and the second output port and a third output port provide a third voltage for a second load; a first capacitor and a second capacitor, where the first capacitor is connected between the first output port and the second output port, and the second capacitor is connected between the second output port and the third output port; a first switch circuit and a second switch circuit, where the first switch circuit and the second switch circuit are connected in series between the first input port and the second input port, the first switch circuit and the second switch circuit are unidirectionally switched on in opposite directions, and a first node is disposed between the first switch circuit and the second switch circuit; and an inductor, where the inductor is connected between the first node and the second output port.
    • 5. 发明公开
    • DRIVE SYSTEM AND DRIVE METHOD FOR ELECTRIC VEHICLE
    • EP3470256A1
    • 2019-04-17
    • EP17814445.7
    • 2017-03-10
    • Huawei Technologies Co., Ltd.
    • YI, JieTANG, Jie
    • B60L11/18
    • This application discloses an electric vehicle drive system and an electric vehicle driving method, and belongs to the field of electric vehicle technologies. The drive system includes a power battery, a drive, a motor, a detection module, a torque reference module, and a controller, and the drive includes a filtering module, a first conversion module, a first capacitor, and a second conversion module. A positive electrode of the power battery is connected to an input end of the filtering module, and a first output end of the filtering module is connected to an alternating current end of the first conversion module. One end of the first capacitor is separately connected to direct current input ends of the first conversion module and the second conversion module, and the other end of the first capacitor is separately connected to direct current output ends of the first conversion module and the second conversion module and a negative electrode of the power battery. An alternating current end of the second conversion module is connected to the motor. In this application, a bus voltage is boosted, so as to expand a speed adjustment range of an electric vehicle. In this way, output power of the system is increased and driving efficiency is increased without requiring field weakening control.