基于FPGA的伺服驱动器分数分周比设计与实现

摘要

With the introduction of the principle of frequency divider foundation, servo driver achieved the function of score frequency divider by the procedures for the preparation of VHDL.During this process, l 024 to 360 frequency division of the two-phase quadrature pulse could be successfully implemented.The ModelSim XE Ⅲ 6.2c experiment simulation result shows that after dividing the frequency, the two-phase pulse is absolutely orthogonal,and duty cycle is 50％ ,which is fully able to meet the all-digital AC servo system performance requirements.It has practical significance.%在介绍分周比原理的基础上,通过编制VHDL程序实现了伺服驱动器分数分周比的功能,成功实现了两相正交脉冲的1 024/360脉冲的分频.用ModelSim XE Ⅲ 6.2c进行实验仿真,仿真结果表明:分频后所得两相脉冲完全正交,并且占空比为50%,完全能够满足全数字交流伺服系统的性能要求.