在Multisim 10軟件環(huán)境下，設(shè)計(jì)一種由運(yùn)算放大器構(gòu)成的精確可控矩形波信號發(fā)生器，結(jié)合系統(tǒng)電路原理圖重點(diǎn)闡述了各參數(shù)指標(biāo)的實(shí)現(xiàn)與測試方法。通過改變RC電路的電容充、放電路徑和時(shí)間常數(shù)實(shí)現(xiàn)了占空比和頻率的調(diào)節(jié)，通過多路開關(guān)投入不同數(shù)值的電容實(shí)現(xiàn)了頻段的調(diào)節(jié)，通過電壓取樣和同相放大電路實(shí)現(xiàn)了輸出電壓幅值的調(diào)節(jié)并提高了電路的帶負(fù)載能力，可作為頻率和幅值可調(diào)的方波信號發(fā)生器。Multisim 10仿真分析及應(yīng)用電路測試結(jié)果表明，電路性能指標(biāo)達(dá)到了設(shè)計(jì)要求。 Abstract: Based on Multisim 10， this paper designed a kind of rectangular-wave signal generator which could be controlled exactly composed of operational amplifier， the key point was how to implement and test the parameter indicators based on the circuit diagram. The duty and the frequency were adjusted by changing the time constant and the way of charging and discharging of the capacitor， the width of frequency was adjusted by using different capacitors PROVIDED with multiple switch， the amplitude of output voltage was adjusted by sampling voltage and using in-phase amplifier circuit，the ability of driving loads was raised， the circuit can be used as squarewave signal generator whose frequency and amplitude can be adjusted. The final simulation results of Multisim 10 and the tests of applicable circuit show that the performance indicators of the circuit meets the design requirements.
標(biāo)簽： Multisim 矩形波 信號發(fā)生器 仿真
上傳時(shí)間： 2014-01-21
上傳用戶：shen007yue
Abstract: How can an interface change a happy face to a sad face? Engineers have happy faces when an interface works properly.Sad faces indicate failure somewhere. Because interfaces between microprocessors and ICs are simple—even easy—they are oftenignored until interface failure causes sad faces all around. In this article, we discuss a common SPI error that can be almostimpossible to find in a large system. Links to interface tutorial information are PROVIDED for complete information. Noise as a systemissue and ICs to minimize its effects are also described.
上傳時(shí)間： 2013-11-18
上傳用戶：zgz317
Setting up an ADOCE project using Visual C++ 6.0 is rather simple. Assuming that you have downloaded and installed the ADOCE SDK from Microsoft, you are ready to use it in your Windows CE Database applications. The sample that I have PROVIDED is a *very* simple one illustrating how to instantiate the proper COM objects, and the basics of how to interface with them (in a very simple example)
標(biāo)簽： downloaded Assuming Setting project
上傳時(shí)間： 2015-01-16
上傳用戶：陽光少年2016
工具分類：攻擊程序 運(yùn)行平臺：Windows 工具大小：7577 Bytes 文件MD5 ：28f6d5f4d818438522a3d0dc8a3fa46b 工具來源：securiteam.com // GDI+ buffer overrun exploit by FoToZ // NB: the headers here are only sample headers taken from a .JPG file, // with the FF FE 00 01 inserted in header1. // Sample shellcode is PROVIDED // You can put approx. 2500 bytes of shellcode...who needs that much anyway // Tested on an unpatched WinXP SP1
標(biāo)簽： 818438522a d818438522 securiteam 818438522
上傳時(shí)間： 2015-01-20
上傳用戶：Late_Li
SPLASH is a c++ class library that implements many of the Perl constructs and data types, including extensive regex regular expression pattern matching. For those not familiar with Perl, it is an excellent scripting language by Larry Wall and is available for most platforms. This Class library provides List, String, Regular Expression, and text manipulation handling capabilities based on those PROVIDED in Perl
標(biāo)簽： implements constructs including library
上傳時(shí)間： 2013-12-07
上傳用戶：1583060504
UnZip is a small zipfile extract utility. It is written to be assmall portable as possible and is intended to be starting point for im-plementation of .ZIP files in non-IBM environments.Source code is PROVIDED in C and Turbo Pascal. If you port this programto a non-IBM system, I would appreciate a copy of the ported source andexe files.
標(biāo)簽： is portable possible extract
上傳時(shí)間： 2014-01-20
上傳用戶：維子哥哥
Client/Server版本 DBISAM compiles directly into your application with no external libraries required. Runtime package support is also PROVIDED if so desired. It has a very small footprint and does not require any forms support in Delphi 6, C++Builder 6, and Kylix 2 and higher, which helps keep the size of non-UI applications like services or web applications to a minimum.
標(biāo)簽： application libraries compiles directly
上傳時(shí)間： 2015-04-04
上傳用戶：sz_hjbf
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ** RELEASE NOTES *** *** *** *** ***** *** *** *** *** *** *** *** *** *** *** *** *** *** 1) RELEASE NOTES: --- --- ---- The release notes are now PROVIDED in PDF format in the file: \SOFTWARE\uCOS-II\DOC\RelV251.PDF 2) FEATURES SINCE V2.00: --- --- --- ----- All the features added since V2.00 are described in the PDF file: \SOFTWARE\uCOS-II\DOC\NewV251.PDF 3) EVENT FLAGS: -------------- Event Flags are discussed in AN-1007 (see www.Micrium.com/app_notes.htm) 4) QUICK REFERENCE CHART: ------------------------ A Quick Reference Chart for all the functions in V2.51 is PROVIDED in the following .PDF files: \SOFTWARE\uCOS-II\DOC\QuickRefChartV251-Color.PDF Once printed, simply FOLD the page in half and if you have a LAMINATION machine, you can protect the chart by laminating it.
上傳時(shí)間： 2015-04-06
上傳用戶：zq70996813
Free C++ toolkit to facilitate Monte-Carlo simulation. This is a library covered under the LGPL. "MCS-libre" stands for "Monte Carlo Simulation - libre". Documentation and examples are PROVIDED. 這是一個(gè)免費(fèi)的用于簡化Monte-Carlo模擬的C++工具包。這是一個(gè)遵守LGPL協(xié)議的庫。"MCS-libre"代表"Monte Carlo Simulation - libre"。提供了文檔和例子。
標(biāo)簽： Monte-Carlo facilitate simulation toolkit
上傳時(shí)間： 2013-12-06
上傳用戶：671145514
This document can be considered as a supplement to the already existing Application note AN10302 “Using the Philips LPC2000 Flash Utility”, which is PROVIDED in the same zip file. The Application note covers the following topics:
標(biāo)簽： Application considered supplement document
上傳時(shí)間： 2015-04-18
上傳用戶：waizhang
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