脈沖調寬型伺服放大器的設計

電子機電論文編號:JD880  附開題報告,任務書,答辯PPT,外文翻譯,論文字數:13912,頁數:37

摘要 
目錄 
1引言  1
1.1 研究的背景、目的、意義和發展方向  1
1.2 提供問題確定初步設計方案  1
1.3 設計方案比較  2
2遙控電路設計  3
2.1 電動機的啟動、轉向、停止的遙控電路設計  3
2.1.1無線電遙控發射器電路  3
2.1.2接收器電路  3
2.1.3發射與接收電路的工作過程  4
2.1.4元器件選擇  5
2．2電動機調速的遙控電路設計  7
2.2.1直流電機的PWM調速原理  7
2.2.2電路原理  8
2.2.3元器件選擇  10
3電動機的啟動、制動、正反轉電路設計  18
3.1電動機的啟動  18
3.2電動機的制動  20
3.3電動機的正反轉電路  21
4編碼譯碼與參數設置  22
4.1編碼與譯碼  22
4.2參數設置  22
5控制電路可靠性設計、仿真測試  23
5.1控制電路可靠性設計  23
5.1.1選用可靠的器件  23
5.1.2印刷電路板的抗干擾措施  23
5.1.3地線設計  23
5.1.4電磁兼容性設計  24
5.2仿真測試  25
6結論與建議  28
參考文獻  29
致謝  30
附錄A設計流程圖  31
附錄B總體電路圖  32
附錄C遙控發射部分PCB圖  33
附錄D遙控接收部分PCB圖    35

摘 要：本系統主要是通過脈寬調制方式實現電動機的調速，包括遙控和手動部分。同時還實現了電動機的啟動、轉向、制動的遙控控制，調速用到的方波信號由555定時器構成的占空比可變的多諧振蕩器產生。遙控部分的電路為方便實現多路控制，采用了四通道的無線遙控裝置。同時通過編碼譯碼實現選擇通道，控制對應電路電源的通斷，對于電動機的啟動和制動部分應用繼電器和接觸器控制。通過各部分的綜合運用，實現了單環調速比1：100，遙控距離大于10m。
關鍵詞：脈寬調制；遙控控制；功率放大；直流電動機

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