TRANSDUCER SYSTEM WITH THREE DECIBEL FEEDBACK LOOP

    公开(公告)号:WO2021231642A1

    公开(公告)日:2021-11-18

    申请号:PCT/US2021/032081

    申请日:2021-05-12

    Inventor: ASCHIERI, Julian

    Abstract: A transducer system has a transducer configured to receive an incident signal and produce an output signal as a function of the incident signal. As known in the art, the output signal has a -3dB point. The transducer system also has circuitry operatively coupled with the transducer. The circuitry includes an amplifier with an output configured to produce an amplified signal as a function of the output signal. In addition, the circuitry further has a positive feedback loop and a negative feedback loop that both are electrically coupled between the transducer and the amplifier. The positive feedback loop is configured to move the -3dB point in a first frequency direction. Conversely, the negative feedback loop is configured to move the -3dB point in a second frequency direction. Preferably, the first and second frequency directions are different.

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