Method for determining dynamic characteristics analysis and parameters of phase-locked frequency circuit

This paper introduces the composition and basic principle of phase locked frequency circuit, analysis of the dynamic characteristics of the loop, and the method to determine the parameters of phase locked loop circuit. The experimental results show that using the phase lock loop circuit designed by this method can be accurate and stable frequency trigger signals needed, as well as realize the synchronous and equal interval sampling, and the whole cycle voltage uniform subdivision. Meantime, it reduced the design difficulty, and has very strong applicability.