Diving mask
    4.
    外观设计

    公开(公告)号:USD873991S1

    公开(公告)日:2020-01-28

    申请号:US29662479

    申请日:2018-09-05

    申请人: Yan Chen

    设计人: Yan Chen

    Power factor correction circuit
    9.
    发明授权
    Power factor correction circuit 有权
    功率因数校正电路

    公开(公告)号:US09001537B2

    公开(公告)日:2015-04-07

    申请号:US13523615

    申请日:2012-06-14

    摘要: A power factor correction (PFC) circuit includes an AC power, a first bridge arm and a second bridge arm. The first bridge arm includes first and second switches connected in series with each other. A second terminal of the first switch is connected to a first terminal of the second switch, and coupled to a first end of the AC power via a first inductor. The second bridge arm includes third and fourth switches connected in series with each other. A second terminal of the third switch is connected to a first terminal of the fourth switch and a second end of the AC power. The third and fourth switches operate in ON/OFF states by use of a control signal having an operation frequency consistent with that of the AC power. The on-state resistance of the third and fourth switches is lower than that of the first or second switch.

    摘要翻译: 功率因数校正(PFC)电路包括AC电力,第一桥臂和第二桥臂。 第一桥臂包括彼此串联连接的第一和第二开关。 第一开关的第二端子连接到第二开关的第一端子,并且经由第一电感器耦合到AC电力的第一端。 第二桥臂包括彼此串联连接的第三和第四开关。 第三开关的第二端子连接到第四开关的第一端子和交流电源的第二端。 第三和第四开关通过使用具有与AC电力的操作频率一致的操作频率的控制信号来操作ON / OFF状态。 第三和第四开关的导通电阻低于第一或第二开关的导通电阻。

    Angle position sensor
    10.
    发明授权
    Angle position sensor 有权
    角度位置传感器

    公开(公告)号:US08766627B2

    公开(公告)日:2014-07-01

    申请号:US13119482

    申请日:2009-09-15

    IPC分类号: G01B7/30 G01D5/14

    CPC分类号: G01D5/145

    摘要: The present invention discloses an angular position sensor, which includes a rotor core as well as a stator core coaxially around this rotor core. Between the rotor core and the stator core is a first air gap, and inside the rotor core a second air gap, which is provided inside with a hard magnet. The stator core has a third air gap inside, which is provided inside with a magnetic flux sensing element. It is obvious that the present invention, by substituting the combination of the hard magnet and the rotor core for the design of ring magnet in the prior art, obtains the good linearity within a wider range.

    摘要翻译: 本发明公开了一种角位置传感器,其包括转子芯以及围绕该转子芯同轴的定子芯。 在转子铁芯和定子铁芯之间是第一气隙,并且在转子铁芯的内部具有设置在内部的硬磁体的第二气隙。 定子铁心内部具有第三气隙,内部设有磁通量感应元件。 很明显,本发明通过用现有技术中的环形磁铁的设计代替硬磁体和转子铁芯的组合来获得较宽的线性度。