【摘要】 介绍了一种基于现场可编程门阵列(FPGA)和直接数字频率综合(DDS)技术的步进电动机速度控制器纯硬件设计方法,完全独立于主机运行。应用DDS技术可实现相位连续的快速频率切换。FPGA设计硬件结构具有可重构性,详细介绍了各子电路的设计原理,并给出了仿真结果。更多还原

【Abstract】 A pure hardware design of the speed controller in step motor based on FPGA and DDS had been introduced. The controller can run independently. DDS technology can switch frequency fastly in phase continuous. FPGA design hardware can restructure. The design principle of each sub-circuit of the speed controller had been analyzed in details. The validity of the proposed design scheme had been verified by the simulation results.更多还原