脉冲调宽型伺服放大器的设计

论文编号:JD880  附开题报告,任务书,答辩PPT,外文翻译,论文字数:13912,页数:37

摘 要：本系统主要是通过脉宽调制方式实现电动机的调速，包括遥控和手动部分。同时还实现了电动机的启动、转向、制动的遥控控制，调速用到的方波信号由555定时器构成的占空比可变的多谐振荡器产生。遥控部分的电路为方便实现多路控制，采用了四通道的无线遥控装置。同时通过编码译码实现选择通道，控制对应电路电源的通断，对于电动机的启动和制动部分应用继电器和接触器控制。通过各部分的综合运用，实现了单环调速比1：100，遥控距离大于10m。
关键词：脉宽调制；遥控控制；功率放大；直流电动机

The Design Of PWM Servo Amplifiers
Abstract: This system modulate through pulse width modulating way realize speed of transfering of motor mainly, including remote control and manual some. The ones that have also realized the arrival of the motor , changed direction , applied the brake are controlled remotely in addition, square wave used rapidly to adjust adopt form by 555 timers take hole in harmony oscillator produce more than a variable one, and make for circuit , remote control of part, convenient realization many distance control, adopt four passways of wireless remotecontrol devices, spend arrive code and decoder among device this. Is it choose passway to realize through code decipher , control corresponding circuit power put through and disconnected, some extensive applying to the relay and contactor to the start and applying the brake of the motor. Whether through every comprehensive application of part , realize single ring transfer 1 speed ratio. 100, remote control is before greater than 10meters.
Key words:The pulse width modulating    Control emotely    Power amplification     Direct current motor

摘要 
目录 
1引言  1
1.1 研究的背景、目的、意义和发展方向  1
1.2 提供问题确定初步设计方案  1
1.3 设计方案比较  2
2遥控电路设计  3
2.1 电动机的启动、转向、停止的遥控电路设计  3
2.1.1无线电遥控发射器电路  3
2.1.2接收器电路  3
2.1.3发射与接收电路的工作过程  4
2.1.4元器件选择  5
2．2电动机调速的遥控电路设计  7
2.2.1直流电机的PWM调速原理  7
2.2.2电路原理  8
2.2.3元器件选择  10
3电动机的启动、制动、正反转电路设计  18
3.1电动机的启动  18
3.2电动机的制动  20
3.3电动机的正反转电路  21
4编码译码与参数设置  22
4.1编码与译码  22
4.2参数设置  22
5控制电路可靠性设计、仿真测试  23
5.1控制电路可靠性设计  23
5.1.1选用可靠的器件  23
5.1.2印刷电路板的抗干扰措施  23
5.1.3地线设计  23
5.1.4电磁兼容性设计  24
5.2仿真测试  25
6结论与建议  28
参考文献  29
致谢  30
附录A设计流程图  31
附录B总体电路图  32
附录C遥控发射部分PCB图  33
附录D遥控接收部分PCB图    35