Vertical amplifier apparatus with a beam-finding function for an
oscilloscope
    1.
    发明授权
    Vertical amplifier apparatus with a beam-finding function for an oscilloscope 失效
    具有示波器波束发现功能的垂直放大器设备

    公开(公告)号:US5138239A

    公开(公告)日:1992-08-11

    申请号:US777180

    申请日:1991-10-16

    IPC分类号: G01R13/22 G01R13/28 G01R13/32

    CPC分类号: G01R13/22

    摘要: A vertical amplifier apparatus with a beam-finding function for an oscilloscope including an analog multiplier and a gain control circuit. The analog multiplier multiplies an input signal to the vertical amplifier by a gain control signal. The gain control circuit outputs a DC voltage as the gain control signal. In a beam-finding mode, the gain control circuit supplies the analog multiplier with the gain control signal whose absolute value is much smaller than that of the gain control signal in a normal mode. This makes is possible to obviate a dedicated beam-finder circuit. In a multi-channel oscilloscope, the beam-finding operation can be performed independently for each channel.

    摘要翻译: 一种具有用于示波器的波束发现功能的垂直放大器装置,包括模拟乘法器和增益控制电路。 模拟乘法器通过增益控制信号将输入信号与垂直放大器相乘。 增益控制电路输出直流电压作为增益控制信号。 在波束寻找模式中,增益控制电路向模拟乘法器提供在正常模式下其绝对值远小于增益控制信号的增益控制信号。 这使得可以避免专用的寻线器电路。 在多通道示波器中,可以为每个通道独立地执行寻轨操作。