Circuitry for driving a non-linear transducer for ultrasonic cleaning
    91.
    发明授权
    Circuitry for driving a non-linear transducer for ultrasonic cleaning 失效
    用于驱动超声波清洗的非线性换能器的电路

    公开(公告)号:US4141608A

    公开(公告)日:1979-02-27

    申请号:US850302

    申请日:1977-11-10

    CPC classification number: B06B1/0253 B06B2201/40 B06B2201/71

    Abstract: A circuit is disclosed for providing an 80 kilohertz sine wave to an ultrasonic transducer which includes an 80 kilohertz square wave generator driving a transistor having the primary of a transformer in its collector circuit. The secondary of the transformer drives a power transistor which has the transducer drive circuitry in its collector circuit. The transducer drive circuitry includes a transformer whose primary is connected in series with an inductor. The secondary of the transformer drives the transducer and has a capacitor connected thereacross. A third winding of the transformer is connected to have its output rectified to serve as a power supply for the square wave generator.

    Abstract translation: 公开了一种用于向超声换能器提供80千赫兹正弦波的电路,该超声波换能器包括一个80千赫兹方波发生器,驱动在其集电极电路中具有变压器初级的晶体管。 变压器的次级驱动功率晶体管,其在其集电极电路中具有换能器驱动电路。 换能器驱动电路包括其初级与电感器串联连接的变压器。 变压器的二次驱动器传感器并连接有一个电容器。 连接变压器的第三绕组,使其输出整流,作为方波发生器的电源。

    Hand held ultrasonic nebulizer
    92.
    发明授权
    Hand held ultrasonic nebulizer 失效
    手持超声波雾化器

    公开(公告)号:US4113809A

    公开(公告)日:1978-09-12

    申请号:US784044

    申请日:1977-04-04

    Abstract: An improved ultrasonic nebulizer for administering a medicament aerosol to a patient. Output from an oscillator is connected through a series inductor to a transducer adjacent a reservoir which generates aerosol from the medicament. The inductor is tuned for series resonance with the bulk capacitance of the transducer. An impedance change in the transducer when liquid is removed or consumed from the reservoir reduces the power delivered to the transducer and prevents transducer damage.

    Abstract translation: 一种用于向患者施用药物气溶胶的改进的超声雾化器。 来自振荡器的输出通过串联电感器连接到与从药物产生气溶胶的储存器相邻的换能器。 电感器被调谐以与传感器的体电容串联谐振。 当液体从储存器中取出或消耗时,换能器中的阻抗变化会降低输送到换能器的功率,并防止换能器损坏。

    ACOUSTIC-WAVE GENERATING DEVICE
    100.
    发明公开

    公开(公告)号:US20230338989A1

    公开(公告)日:2023-10-26

    申请号:US18215327

    申请日:2023-06-28

    CPC classification number: B06B1/0215 B06B2201/40 B06B2201/51

    Abstract: An acoustic-wave generating device includes a drive circuit and a power auxiliary circuit. The drive circuit includes a capacitor chargeable via a direct-current power supply, and a drive switch to cause power to be supplied from the capacitor to an acoustic-wave source which produces heat through energization to generate acoustic waves. The power auxiliary circuit is operable to supplies power to the drive circuit to avoid a decrease of power supplied to the acoustic-wave source in an operation of generating a series of acoustic waves from the acoustic-wave source through switching of the drive switch.

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