Design and Implementation of Nanosecond Pulse Generator Based on Reconfiguration PLL in FPGA

Abstract

Narrow pulses have become an essential requirement in Biology, Chemistry, Communication and other fields. PLL based on dynamic reconfiguration technology in FPGA has been adopted in this work to implement a narrow pulse generator with nanosecond pulse width. The generated pulse frequency and the pulse width are easily adjustable in real time by simply reconfiguring the frequency and the phase shift parameters of the PLL. The realized narrow pulse has a frequency range from 5MHz to 300MHz and pulse width from 1ns to 100ns. The implemented narrow pulse generator has the advantages of small size and flexible controllability when compared with the available standard generators. Thus, the presented work in this paper provides a novel approach to generate narrow pulses with configurable frequency and pulse width.