一种对高速脉冲边沿整形、调整的设计方案

随着高速脉冲的广泛应用,作为决定脉冲质量的重要参数,脉冲上升、下降时间也越来越受到重视。针对高速脉冲发生中对脉冲边沿陡峭、可控的要求,本文提出了一种使用隧道二极管对脉冲边沿整形,利用场效应管开关和恒流源充放电电路控制脉冲边沿时间的方案,并对其电路和隧道二极管的工作原理进行了具体分析。从试验结果看,该方案能将脉冲的边沿时间整形至800ps左右,同时实现边沿时间的可控调整。

Design of edge rectifier and adjuster for high-speed pulse

As a key parameter,the leading edge and trailing edge of pulse has gained more and more recognition with the wide use of high speed pulse technique.A design for rectifying and adjusting pulse signal's leading edge and trailing edge with tunnel diode and FET switch is presented in this paper.The pulse's edge time could be adjustable from 800ps to 1us in the design.The operation theory of the design circuit and tunnel diode is also discussed in this paper.This design could shape pulse edge time to 800ps and adjust edge time through test.