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  • This design package includes reference materials for creating a USB - PS/2 combination mouse that a

    This design package includes reference materials for creating a USB - PS/2 combination mouse that auto-detects the interface and configures itself to operate on the appropriate bus.

    標簽: combination materials reference creating

    上傳時間: 2014-12-03

    上傳用戶:時代電子小智

  • Javascript Browser Sniffer is a library for identifying which browser and operating system the visit

    Javascript Browser Sniffer is a library for identifying which browser and operating system the visitor is using, including the version number. It also detects bots and the Flash plugin

    標簽: identifying Javascript operating Browser

    上傳時間: 2013-12-11

    上傳用戶:大三三

  • LPC2138 application c program of fire sensor and GSm interfacing, to send sms to predefined mo. no.

    LPC2138 application c program of fire sensor and GSm interfacing, to send sms to predefined mo. no. when fire sensor detects fire or fumes

    標簽: application interfacing predefined program

    上傳時間: 2017-08-23

    上傳用戶:lxm

  • 基于單片機的紅外測溫裝置設計

    溫度控制如今已成為當代社會研究的熱點之一,而溫度檢測在現代設備參數檢測中也是一項極其重要的技術,應用十分廣泛。與傳統的測溫方法相比,紅外測溫方法具有時間短、精度高、使用簡單方便等優點。本文以環境溫度為被測對象,設計了以STC89C52單片機為控制中心的紅外測溫裝置,能夠實現對目標溫度的實時采集、處理、顯示和報警等功能。本設計主要是由STC89C52單片機、紅外測溫傳感器、LCD1602液晶顯示器、按鍵和蜂鳴器等部分組成,采用非接觸的方式對目標溫度進行實時檢測。Temperature control has become one of the hotspots in contemporary social research,and temperature detection is an extremely important technology in modern equipment parameter detection.Compared with traditional method,the infrared temperature measuring method has advantages of short time,high precision and convenient operation,etc.This paper consider environment temperature as research objects and designs an infrared temperature measuring device which employs the STC89C52singlechipas-control center,and it can realize timely collection,processing,display and alarm function of the target temperature.The design is mainly composed of STC89C52 singlechip,infrared temperature sensor,LCD1602monitor,keys and buzzer,etc.This design detects the target temperature by non-contact method.

    標簽: 單片機 紅外測溫

    上傳時間: 2022-03-27

    上傳用戶:jiabin

  • 基于TMS320F28035芯片為控制核心的空間矢量異步電機變頻器

    基于TMS320F28035芯片為控制核心的空間矢量異步電機變頻器  我們設計的異步電機變頻調速器以TMS320F28035芯片為控制核心,通過輸出三相PWM波控制智能功率模塊IPM驅動三相異步電機。我們使用空間矢量SVPWM算法,并對其進行了優化。采用檢測反電勢的方法省去了昂貴的光電編碼器,大大節省了成本。同時開創性的研發了自動根據運行環境調節的自適應變頻算法,使我們的變頻調速器可以在電網條件惡劣的鄉村山區工作,由此該變頻器已被一家民用水泵生產企業預訂。關鍵字 變頻器 TMS320f28035 IPM SVPWM In our design, the asynchronous machine inverter based on the chip of TMS320F28035 drives the three-Phase asynchronous machine by sending three-phase PWM waves to the IPM, which is short for the Intelligent-Power-Module. The SVPWM (space vector pulse width modulation) strategy is applied to our control algorithm and we optimize it mainly in two aspects. Firstly the inverter detects the speed by measuring the Back EMF instead of installing an expensive photoelectric encoder for costs reduction. 

    標簽: tms320f28035 芯片

    上傳時間: 2022-05-08

    上傳用戶:zhanglei193

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