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  • 基于PIC16C711的脈沖點火控制器設計

     針對目前燃氣灶市場的狀況,提出一種基于PIC16C711單片機的燃氣灶脈沖點火控制器設計,具體包括有系統的組成和功能介紹、硬件電路設計及軟件功能實現。 Abstract:  Aiming at today’s gas cooker market, a pulse ignition controler design based on PIC16C711 is presented.The specific descriptions of system components and functions,hardware circuit design and software function are given.

    標簽: C711 PIC 16C 711

    上傳時間: 2013-10-31

    上傳用戶:zhqzal1014

  • 基于8051F330的音頻信號發生器的設計

     MMC/SD卡以其優越的性能,在單片機嵌入式設備中得到廣泛應用。將MMC/SD卡作為外部掉電存儲介質應用于音頻信號發生器中,通過8051F330單片機上的SPI接口,實現單片機—MMC/SD卡的存儲擴展,設計了此硬件平臺上的MMC/SD卡的單片機驅動程序,并給出了相應的程序代碼,滿足音頻信號發生器的大容量存儲要求。 Abstract:  MMC/SD card is more and more widely used in the single chip embedded devices for their excellent performances.This article introduces the application of MMC/SD card as the external power down storage medium in audio signal generator. The extension technology especially for storage of single chip-MMC/SD card via SPI interfaces in 8051F330 single chip, including designs single chip drive program of MMC/SD card based on hardware platform,and also gives the key coding of the program. The implementation of big capacity storage is meaningful in audio signal generator.

    標簽: 8051F330 音頻信號 發生器

    上傳時間: 2014-12-27

    上傳用戶:黃華強

  • 基于AT89C2051的溫度監控系統的設計

    采用單片機AT89C2051實現溫度測量與控制,鍵盤和顯示電路實現溫度的設定、修改、清零以及當前溫度值的顯示,并對溫度超過上下限進行報警。闡述了該系統設計的硬件和軟件設計。 Abstract:  The system of temperature measuring and controling is realized based on AT89C2051.The keyboard and display circuit is designed,which can be used for setting and modifying temperature value,resetting and displaying the present temperature value.At the same time the warning circuit is also designed in the system,which can deal with the alarm when temperature exceeds the upper limit and the lower limit.The hardware and software design of the system are explained.

    標簽: C2051 2051 89C AT

    上傳時間: 2013-11-18

    上傳用戶:leehom61

  • 基于C8051F340的數據采集器設計

    針對眾多低成本數據采集需求,采用帶有片上USB控制器和D/A轉換器的混合信號微處理器C8051F340,設計了一款可通過USB接口和LabVIEW圖形用戶界面實現與PC機聯機的數據采集器,同時借助系統的SD卡存儲獨立實現現場長時間采集數據。該數據采集器成本低,結構簡單,體積小,已成功用于工業現場。 Abstract:  Aiming at the need of low cost data acquisition, a data acquisition device is designed based on C8051F340 which is a mixed-signal microcontroller and integrates USB controller and A/D controller on a chip.The data acquisition device which can combine with PC by USB interface and LabVIEW graphical user interface,can realize data acquisition. At the same time,it can be solely run a long time in virtue of SD card in field.The date aequisition device features low cost,simple structure and little sharp, and it has been used in industry field.

    標簽: C8051F340 數據 集器設計

    上傳時間: 2014-05-31

    上傳用戶:1109003457

  • 基于C8051F320的模擬槍戰系統設計

    提出了一種基于C8051F320的紅外模擬槍戰系統設計方案。介紹了紅外模擬槍戰系統的構成,給出了硬件選型、系統硬軟件設計。利用紅外抗對系統的工作原理,系統獲得良好效果。 Abstract:  This paper presents the design of simulated gunfight system based on C8051F320.Introduces system structure,and puts forward hardware selection of infrared simulated gunfight system and system hardware and software designs.Using the operation principle of infrared antagonizing system,the system result is good.

    標簽: C8051F320 模擬 系統設計

    上傳時間: 2013-11-20

    上傳用戶:南國時代

  • 基于DAC7512的數控直流恒流源設計

    為了解決磁放大器性能測試過程中,需要對其供給不同數值恒定電流的問題,設計了一種基于DAC7512和單片機的數控恒流源系統。該系統采用AT89C51作為主控器件,將計算機發送的電流控制字命令轉換為D/A轉換器控制字,通過模擬SPI通信接口,寫D/A控制字到DAC7512,從而控制其輸出相應數字電壓值,經差動縮放電路、電壓/電路變換電路和功率驅動電路,最后輸出恒定電流。實驗結果表明,恒流源輸出電流調節范圍為-45~+45 mA、精度為±0.1 mA,分辨率達0.024 4 mA,具有應用靈活,外圍電路簡單,可靠性高的特點。該數控直流恒流源也可為相關產品的測試系統研發提供參考。 Abstract:  In order to solve the need to supply different values constant current for the magnetic amplifier in testing process, numerical control constant current source system was designed based on DAC7512 chip and microcontroller technology. The system used the AT89C51 as the main chip, which can convert the current control word from computer into to D/A control words. And the system wrote D/A control word into the DAC7512 chip to control the output voltage value by the SPI communication interface, which can output corresponding constant current figures by scaling circuit, the V/I converter and power drive circuit. Experimental results show that the current source output current adjustment range is -45~+45mA, accuracy is ± 0.1mA, and resolution ratio is 0.024 4mA

    標簽: 7512 DAC 數控直流 恒流源

    上傳時間: 2014-12-27

    上傳用戶:invtnewer

  • C8051F320列車安全巡檢儀的設計

    提出了一種基于C8051F320的列車安全巡檢儀的設計方案,詳細闡述了巡檢儀的各個模塊的硬、軟件設計。巡檢儀集信息采集、軸溫檢測、照明和記錄存儲等功能于一體,實現了對列車安全巡檢工作有效的監督和科學管理。系統軟件采用C51編寫,對單片機進行有效的電源管理,保證了巡檢儀的穩定性、可靠性和低功耗性。 Abstract:  This paper puts forward a design of train safety inspection based on C8051F320,describes all modules hardware and software design of inspection instrument.The inspection instrument has the function of information collection, axle’s temperature detection, lighting and records storage.It can supervise and administer train safety inspection work effectively.The system software using C51 can manage the power of single chip microcomputer, and guarantee the stability, reliability and low power consumption of the inspection instrument.

    標簽: C8051F320 列車 儀的設計 巡檢

    上傳時間: 2013-12-22

    上傳用戶:落花無痕

  • 基于CC1110單片機公交報站系統的設計

    基于CC1110單片機公交報站系統主要由CC1110單片機最小系統和WT588D語音模塊組成,提出了如何實現語音報站,通過無線通信SimpliciTI網絡協議實現公交站臺的自動播報和OLCD液晶顯示公交運行的各類信息。結果表明,該公交報站系統報站準確率99%,價格比同類產品下降了300%以上,系統組成結構簡單,提高了系統的抗干擾性和穩定性,也便于攜帶。 Abstract:  The bus stop announcement system based on CC1110 MCU is composed of CC1110 MCU minimum system and WT588D voice module. How to achieve the voice announcing is put forward.The bus-stop will announce automatically and display on the OLCD by means of wireless communication SimpliciTI network protocol. As a result, the bus station stop announcement systems reported 99% accuracy rate, price of similar products declined by 300% or more, system of simple structure, improve the anti-jamming and stability of the power system, it is also portable.

    標簽: 1110 CC 單片機 公交報站

    上傳時間: 2013-10-21

    上傳用戶:baby25825

  • 基于MAX262的程控濾波器設計

     通過對程控濾波器的理論分析,在研究MAX262的功能和單片機的SPI總線通信的基礎上,提出了基于MAX262的程控濾波器設計方案,設計了程控濾波器的軟硬件,并給出了測試結果。 Abstract:  By analyzing the programmable filter,the paper puts forward a programmable filter system design based on MAS262 on basic of studying MAS262 features and SPI bus communication.Software and hardware of the programmmable filter are designed,and the test result is given.

    標簽: MAX 262 程控 濾波器設計

    上傳時間: 2013-11-15

    上傳用戶:wxhwjf

  • 基于UC3854A控制的PFC中分岔現象仿真研究

       為深入了解基于UC3854A控制的PFC變換器中的動力學特性,研究系統參數變化對變換器中分岔現象的影響,在建立Boost PFC變換器雙閉環數學模型的基礎上,用Matlab軟件對變換器中慢時標分岔及混沌等不穩定現象進行了仿真。在對PFC變換器中慢時標分岔現象仿真的基礎上,分析了系統參數變化對分岔點的影響,并進行了仿真驗證。仿真結果清晰地顯示了輸入整流電壓的幅值變化對系統分岔點的影響。 Abstract:  In order to better understand the dynamics characteristic of power factor correction converter based on UC3854A, and make the way that parameters change influences the bifurcation phenomena of the system clearly. The math model of the two closed loop circuits to the Boost PFC (Power Factor Correction) converter controller was built. Then, with the help of Matlab, the simulation for nonlinear phenomena such as chaos and slow-scale bifurcation in the PFC converter was made. Finally the factors that have influence to the phenomenon of bifurcation under slow-scale in PFC converter were analyzed. The simulation results clearly show the parameters change influences the bifurcation point of the system.

    標簽: 3854A 3854 PFC UC

    上傳時間: 2013-10-17

    上傳用戶:杜瑩12345

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