電壓控制振蕩電路設(shè)計(jì)與仿真學(xué)士學(xué)位論文(已修改)
2025-06-30 15:17 本頁(yè)面
【正文】 密級(jí)： NANCHANG UNIVERSITY GONGQIN COLLEGE學(xué) 士 學(xué) 位 論 文（設(shè) 計(jì)）THESIS OF BACHELOR（2009—2013年）中文題目:電壓控制振蕩電路設(shè)計(jì)與仿真英文題目：Design and Simulation of voltage controlled oscillator circuit學(xué) 院：共青學(xué)院系 別：信息工程系專業(yè)班級(jí)：09電信本學(xué)生姓名：聶志輝學(xué) 號(hào)：8110109023指導(dǎo)教師：劉定軍二 ○ 一 三 年 五 月學(xué)士學(xué)位論文原創(chuàng)性聲明本人鄭重聲明：所呈交的論文是本人在導(dǎo)師的指導(dǎo)下獨(dú)立進(jìn)行研究所取得的研究成果。除了文中特別加以標(biāo)注引用的內(nèi)容外，本論文不包含任何其他個(gè)人或集體已經(jīng)發(fā)表或撰寫的成果作品。對(duì)本文的研究做出重要貢獻(xiàn)的個(gè)人和集體，均已在文中以明確方式標(biāo)明。本人完全意識(shí)到本聲明的法律后果由本人承擔(dān)。本人簽名： 日期： 南昌大學(xué)共青學(xué)院畢業(yè)設(shè)計(jì)（論文） 摘要摘 要近年來，隨著無線通信技術(shù)的飛速發(fā)展，使市場(chǎng)對(duì)射頻集成電路產(chǎn)生了巨大的需求。在射頻電路中，壓控振蕩器(VCO)占有非常重要的地位，它是鎖相環(huán)、時(shí)鐘恢復(fù)電路以及頻率綜合器的重要組成電路，所以設(shè)計(jì)高性能的壓控振蕩器對(duì)通信系統(tǒng)性能的提高具有十分重要的意義。自其誕生以來就一直在通信、電子、航海航空航天及醫(yī)學(xué)等領(lǐng)域扮演重要的角色，具有廣泛的用途。在無線電技術(shù)發(fā)展的初期，它就在發(fā)射機(jī)中用來產(chǎn)生高頻載波電壓，在超外差接收機(jī)中用作本機(jī)振蕩器，成為發(fā)射和接收設(shè)備的基本部件。隨著電子技術(shù)的迅速發(fā)展，振蕩器的用途也越來越廣泛，例如在無線電測(cè)量?jī)x器中，它產(chǎn)生各種頻段的正弦信號(hào)電壓；在熱加工、熱處理、超聲波加工和某些醫(yī)療設(shè)備中，它產(chǎn)生大功率的高頻電能對(duì)負(fù)載加熱；某些電氣設(shè)備用振蕩器做成的無觸點(diǎn)開關(guān)進(jìn)行控制；電子鐘和電子手表中采用頻率穩(wěn)定度很高的振蕩電路作為定時(shí)部件等。尤其在通信系統(tǒng)電路中，壓控振蕩器(VCO)是其關(guān)鍵部件，特別是在鎖相環(huán)電路、時(shí)鐘恢復(fù)電路和頻率綜合器電路等更是重中之重，可以毫不夸張地說在電子通信技術(shù)領(lǐng)域，VCO幾乎與電流源和運(yùn)放具有同等重要地位電壓控制振蕩器是如今使用非常廣泛的一類電子器件，為電一光轉(zhuǎn)換電路、移動(dòng)式手持設(shè)備等提供了很好的解決方案。本設(shè)計(jì)采用運(yùn)算放大器741芯片組成的反向積分電路和滯回電壓比較器，利用三極管2N222相當(dāng)于電子開關(guān)的功能，控制電容的充放電時(shí)間，構(gòu)成的壓控振蕩電路，從而實(shí)現(xiàn)了輸入電壓對(duì)輸出頻率變化的控制。只要改變輸入端的電壓，即可改變輸出端的輸出頻率。從而達(dá)到設(shè)計(jì)的目的和要求。關(guān)鍵詞：壓控振蕩器（VCO）；運(yùn)算放大器741；2N222I 南昌大學(xué)共青學(xué)院畢業(yè)設(shè)計(jì)（論文） ABSTRACTABSTRACTIn recent years, with the rapid development of wireless munication technology, the market has a huge demand on radio frequency integrated circuits. In rf circuit, voltage controlled oscillator (VCO) occupies very important position, it is a phase locked loop, clock recovery circuit and key circuit of frequency synthesizers, so the design of high performance for voltagecontrolled oscillator is of great significance to the improvement of the performance of the munication system.Since its birth has been in munications, electronics, navigation, aerospace, and medical and other fields play an important role, has a wide range of USES. At the beginning of the radio technology development, it is used to generate high frequency carrier wave voltage in the transmitter, used as local oscillator in the superheterodyne receiver, the basic ponents of equipment bee the transmit and receive. With the rapid development of electronic technology, the purpose of the oscillator is being more and more widely, such as in radio measuring instruments, it produces a variety of frequencies of sine signal voltage。 In hot working, heat treatment, ultrasonic processing, and some in the medical equipment, it produces high frequency electric energy of power on heating load。 Some electrical equipment made of contactless switch to control the oscillator。 Electronic clock and electronic watches in using high frequency stability of the oscillating circuit as timing ponents, etc. Especially in the munication system circuit, voltage controlled oscillator (VCO) is the key ponents, especially in the phaselocked loop circuit, clock recovery circuit and circuit of frequency synthesizers is Paramount, it is no exaggeration to say in the field of electronic munications technology, VCO with almost have the same important position and current sourceVoltage controlled oscillator is now very widely used class of electronic devices for electric light conversion circuit, mobile handheld devices, etc. Provide solution. Thi
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