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    Drive circuit for a plurality of ultrasonic generators using auto follow and frequency sweep
    61.
    发明授权
    Drive circuit for a plurality of ultrasonic generators using auto follow and frequency sweep 失效
    用于多个超声波发生器的驱动电路，使用自动跟随和频率扫描

    公开(公告)号：US4554477A

    公开(公告)日：1985-11-19

    申请号：US554908

    申请日：1983-11-25

    Applicant: Henry K. Ratcliff

    Inventor： Henry K. Ratcliff

    IPC: B06B1/02 ,  H01L41/08

    CPC classification number: B06B1/0284 ,  B06B2201/55 ,  B06B2201/58 ,  B06B2201/71

    Abstract: A circuit for driving a plurality of ultrasonic transducers uses an oscillator drive means, first means responsive to the current supplied to the transducers is fed back to vary the oscillator frequency to maintain the transducer current at a maximum level, and second means, independent of the first means, are provided to cyclically sweep between upper and lower limits the oscillator frequency determined by the first means. This assures that each transducer experience resonance at least once each sweep.

    Abstract translation: 用于驱动多个超声换能器的电路使用振荡器驱动装置，响应于提供给换能器的电流的第一装置被反馈以改变振荡器频率以将换能器电流保持在最大电平，第二装置独立于 第一装置被提供以在上限和下限之间循环扫描由第一装置确定的振荡器频率。 这确保每个传感器每次扫描至少经历一次共振。

    Generator for producing ultrasonic energy
    62.
    发明授权
    Generator for producing ultrasonic energy 失效
    用于生产超声能量的发电机

    公开(公告)号：US3727112A

    公开(公告)日：1973-04-10

    申请号：US3727112D

    申请日：1971-06-14

    Applicant: SURGICAL DESIGN CORP

    Inventor： POPESCU G

    IPC: B06B1/02 ,  H03B5/30 ,  H03B5/36 ,  H03B5/40

    CPC classification number: H03B5/30 ,  B06B1/0253 ,  B06B2201/58 ,  H03B5/36 ,  H03B2200/0006

    Abstract: A generator for producing energy in the ultrasonic range for driving a transducer having variable load characteristics in which the generator includes an oscillator circuit having the capability of accepting and operating with transducers whose natural resonant frequencies vary over a wide range; which has good frequency stability under low or no-load conditions of operation; and good frequency stability under loaded conditions of the transducer. The generator circuit also includes a selfmonitoring circuit for keeping a relatively constant output power over wide ranges of loading of the transducer.

    Abstract translation: 一种用于在超声波范围内产生能量的发生器，用于驱动具有可变负载特性的换能器，其中发电机包括具有接受和操作其自然谐振频率在宽范围内变化的换能器的能力的振荡器电路; 在低或无负载条件下具有良好的频率稳定性; 并且在传感器的负载条件下具有良好的频率稳定性。 发电机电路还包括一个自监控电路，用于在传感器的宽范围内保持相对恒定的输出功率。

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