Switched capacitor circuit
    1.
    发明授权

    公开(公告)号:US12044647B2

    公开(公告)日:2024-07-23

    申请号:US17656332

    申请日:2022-03-24

    IPC分类号: G01N27/22

    摘要: A switched capacitor circuit includes a first charge-to-voltage converter including a first capacitor to operate in a first period to convert a first charge into a first output voltage. The switched capacitor circuit includes a second charge-to-voltage converter including a second capacitor to operate in a second period to convert a second charge into a second output voltage, the second period being different from the first period. The switched capacitor circuit includes a shield interconnect disposed between the first capacitor and the second capacitor, the shield interconnect having a constant potential.

    Detecting device
    3.
    发明授权

    公开(公告)号:US11313824B2

    公开(公告)日:2022-04-26

    申请号:US16681015

    申请日:2019-11-12

    IPC分类号: G01N27/22

    摘要: The detecting device includes a detecting unit including a first electrode and a second electrode, the first electrode and the second electrode being used as a first capacitor. The detecting device includes a drive unit configured to apply a first drive signal to the first drive terminal such that the first drive signal is alternately inverted between a first period and a second period. The detecting device includes a converting unit configured to convert a charge charged at the signal terminal into a voltage and includes a difference processing unit configured to obtain a difference between the first output voltage and the second output voltage.