| 摘要 |
<p>The circuit amplifies the small trigger signal after detecting the peak value of the trigger signal so that the stable trigger source signal is provided. The circuit comprises an amplifier amplifying the trigger source signal with certain gain, a switchaing circuit transmitting the output of a trigger switching circuit (20) or the amplifier selectively to a clipping circuit (30), a peak detector detecting the maximun or minimun value of the trigger source signal, a switching controller controlling the amplifier and the switching circuit with the compared value between the reference and the detected values, and a reset circuit initialising the peak detector with the reset gate signal of a gate signal generator (50).</p> |
