Programmable ultrasonic power supply
    1.
    发明授权
    Programmable ultrasonic power supply 失效
    可编程超声波电源

    公开(公告)号:US4696425A

    公开(公告)日:1987-09-29

    申请号:US631658

    申请日:1984-07-17

    Inventor: James L. Landes

    CPC classification number: B23K20/10 B06B1/0215 B06B2201/72

    Abstract: An ultrasonic generator for providing power to a bonding apparatus having a bonding horn which is brought into contact with respective conductive pads and which carries a wire to be dispensed for interconnection therebetween includes a circuit for applying a voltage at an ultrasonic frequency to the bonding horn to produce a bonding current in the horn, and a monitor for monitoring the bonding current applied to the bonding horn. A circuit is provided for maintaining a zero phase difference between the applied voltage and the monitored current. In addition, a circuit is provided for continuously monitoring and controlling the current which is delivered to the bonding horn to produce a current waveform of a predetermined controllable pattern.

    Abstract translation: 一种超声波发生器,用于向具有与各个导电焊盘接触的接合喇叭的接合装置提供电力,该接合装置承载待分配的导线用于互连,包括用于将超声频率的电压施加到接合喇叭的电路 在喇叭中产生接合电流,以及用于监视施加到接合喇叭的接合电流的监视器。 提供了一个电路,用于保持所施加的电压和所监视的电流之间的零相位差。 此外,提供电路,用于连续地监视和控制输送到接合喇叭的电流,以产生预定可控图案的电流波形。

    Power supply for underground and pad mounted power distribution systems
    2.
    发明授权
    Power supply for underground and pad mounted power distribution systems 有权
    地下和垫式配电系统的电源

    公开(公告)号:US07633262B2

    公开(公告)日:2009-12-15

    申请号:US11078787

    申请日:2005-03-11

    CPC classification number: H02J50/10 H02J5/005 H02J7/025 Y10T307/297

    Abstract: A power supply generated through a set of current transformers is disclosed. The current transformers may be removably attached to a primary power line such as a high voltage power line. The power supply may be used to power a device or charge a battery for a device that requires a low voltage input. The power supply may be used in underground vaults and pad mounted chambers that contain high voltage power lines. The power supply may generate a low voltage direct current out put that is not available in the vicinity of high voltage power lines in an underground vault or pad mounted chamber.

    Abstract translation: 公开了通过一组电流互感器产生的电源。 电流互感器可以可移除地附接到诸如高压电力线的主电力线。 电源可以用于为设备供电或为需要低电压输入的设备对电池充电。 电源可以用于包含高压电源线的地下保险库和垫安装的房间。 电源可能会产生一个低压直流输出,在地下拱顶或安装垫的高压电力线附近不可用。

    Ultrasonic bond energy monitor
    3.
    发明授权
    Ultrasonic bond energy monitor 失效
    超声波能量监测仪

    公开(公告)号:US4341574A

    公开(公告)日:1982-07-27

    申请号:US180796

    申请日:1980-08-25

    Inventor: James L. Landes

    Abstract: A monitor for optimizing the ultrasonic bonding of materials by analyzing the impedance of an ultrasonic transducer used to effect the bond. The electrical impedance of the transducer, which is proportional to its mechanical impedance, is determined by applying an ultrasonic voltage thereto and monitoring the resultant change in current amplitude. A pair of differentiators produces a second derivative signal of the impedance with respect to time, with a negative-going zero crossing of this signal corresponding to completion of the bond. Loss of wire, mechanical malfunctions and improper bonds are also detected by the monitor, to form a real time quality control system.

    Abstract translation: 用于通过分析用于实现该键的超声换能器的阻抗来优化材料的超声波接合的监视器。 通过向其施加超声波电压并监测所得到的电流幅度变化来确定换能器的与其机械阻抗成比例的电阻抗。 一对微分器相对于时间产生阻抗的二次导数信号,该信号的负向零交叉对应于键的完成。 显示器也会检测到导线损失,机械故障和不正确的接合,形成实时的质量控制系统。

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