Gallium nitride operational amplifier

    公开(公告)号:US12028031B2

    公开(公告)日:2024-07-02

    申请号:US17503467

    申请日:2021-10-18

    CPC classification number: H03F3/45076

    Abstract: The present invention is gallium nitride based operational amplifier because reliability and performance of the gallium nitride is better than the silicon counterpart in radiation environment. The operational amplifier includes four stages, first stage is dual input balanced output differential amplifier, second stage is dual input unbalanced differential amplifier, third stage is buffer stage to couple second and fourth stage, and fourth stage is cascaded common source amplifier with degeneration. A capacitor coupled between second and third stage is to enhance the stability of operational amplifier.

    Center of pressure based control system and method

    公开(公告)号:US11363968B2

    公开(公告)日:2022-06-21

    申请号:US15837872

    申请日:2017-12-11

    Abstract: A center of pressure (CoP) based control system includes a sensing device and an electronic device connected to the sensing device. The sensing device includes sensors each of which continuously measures force exerted thereon by a subject and generates a sense signal based on a result of the measurement. The electronic device is connected to the sensing device, and receives the sense signals from the respective sensors, generates CoP data associated with a CoP trajectory based on the sense signals, determines whether a turning point exists in the CoP trajectory, generates an indication signal based on a result of the determination, and generates a control signal based on a direction of one of displacements of the CoP.

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