步进电机控制电路设计.pdf

1 目录(一)数电部分:步进电机控制电路一、设计题目···················································2 二、设计任务···················································2 三、设计要求···················································2 1、基本要求 2、扩展要求四、设计方案及其选择···········································2 1、设计框图 2、参考元件 3、实验分析 4、实验电路设计五、电路的调试·················································12 六、数据整理及分析·············································14 七、所用仪器及材料·············································15 八、心得体会···················································15 九、附录·······················································16 十、参考文献···················································17 (二)模电部分:基于运放的信号发生器设计一、设计题目···················································18 二、设计任务···················································18 三、设计要求···················································18 1、基本要求 2、扩展要求四、设计方案及其选择···········································18 1、设计框图 2、各部分结构及功能五、电路的调试·················································25 1、失真问题 2、增益带宽积 3、转换速率 4、芯片更换六、数据整理及分析·············································29 七、元器件清单·················································29 八、电路改进···················································30 九、心得体会···················································31 十、附录·······················································32 十一、参考文献·················································33 2 脉冲发生电路控制电路驱动电路步进电机脉冲显示环行脉冲分配电路(一)数电部分:步进电机控制电路一、课题名称步进电机控制电路二、设计任务本课题要求设计一个步进电机的控制电路,该电路能对步进电机的运行状态进行控制。三、设计要求 1、基本要求(1).能控制步进电机正转和反转及运行速度,并由LED显示运行状态。(步进电机工作方式可为单四拍或双四拍)。单四拍方式:通电顺序为A—B—C—D—A; 双四拍方式:通电顺序为AB—BC—CD—DA—AB。(2).测量步进电机的步距角。(通过实测步进电机旋转一周时所需要的脉冲数,推算出步进电机的步距角)。 2、扩展要求设计步进电机的工作方式为四相八拍。四相八拍方式:通电顺序为A—AB—B—BC—C—CD—D—DA—A。四、设计方案及其选择 1、设计框图 3 2、参考元件 NE555,计数器74LS161,74LS08,74LS74,74LS14(04),74LS138(74LS153), CD4017,74LS194,四相步进电机,发光二级管,整流二极管IN4007,复合三极管TIP122,5欧(1W)电阻,其他电阻、电容若干。 3、实验分析通过查阅相关资料,我组成员得知:步进电机的转角和转动方向取决于各相通电脉冲个数和顺序。控制脉冲的频率可改变电机的转动速度和加速度。正转: 单四拍方式:A—B—C—D—A; 双四拍方式:AB—BC—CD—DA—AB; 四相八拍方式:A—AB—B—BC—C—