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1、一种LC正弦波振荡电路设计摘要本次的主要内容是一种LC正弦波振荡电路设计,在高频电子线路充分的讲述了正弦波振荡器在通信与电子领域的应用,在通信中手机的发送的核心部分就是正弦振荡电路,也是手机收机设备的主要部分,正弦波振荡器是电脑,app等家用电子的核心部件。LC振荡电路种将噪声转换为可以被识别的波形,在LC正弦振荡电路选频网络的作用是将许多杂波,进行选择和滤掉后,再通过反馈网络反馈回输入端终振荡正弦电流的电路,它是指用Multisim将电阻电感晶体管放在电脑屏幕上仿真出与之对应的电路图,振荡网络通过选频网络、选频网
2、络和反馈网络组成。正弦波振荡电路将直流电源提供的信号转换为按输入信号规律变化的交变能量的电路,反馈振荡器的原理与分析以及电容三点式电路参数的计算,它是利用了与它相关的电路作调试放大运行工作的,由于解决放大电路中,经常出现的自激振荡问题,难以准确的调谐问题,通过仿真软件Multisim最终仿真出正弦波。该课题是研究其中一种振荡网络的特点,并利用其特性设计一个好的振荡电路。进行试验,得出该电路的特点,再根据具体情况设计电路。ThemaincontentofthesinewaveisakindofLCoscillatio
3、ncircuitdesign,inthehighfrequencyelectroniccircuitfulltellsthesinusoidaloscillatorinthefieldofcommunicationsandelectronicsapplications,sendingdeviceisthecorepartofthesinusoidaloscillationcircuit,isthemainpartofthereceiverequipment,sinusoidaloscillatoristhecore
4、componentofmanyelectronicmeasuringequipment.LCoscillationcircuitisconvertedtoasinewaveisanoise,noiseafterfrequencyselectivenetwork,eventuallyproduceoscillationofthesinusoidalcurrentcircuit,itreferstouseMultisiminductanceandcapacitanceofanoscillationcircuitoffr
5、equencyselectivenetworkoscillationnetworkthroughthenetworkconsistsofthreeparts,respectivelyisgivenpriorityto,frequencyselectivenetworkandfeedbacknetwork.Sinewaveoscillatorcircuitconvertsdcpowersupplyprovidesthesignaltochangebyinputsignalpatternofalternatingcir
6、cuitofenergy,throughthecommonMultisimdrawamplitudemodulationcircuitdiagramandcarriesonthesimulation,theprincipleoffeedbackoscillatorwithanalysisandcalculationofthethree-pointcapacitancecircuitparameters,itistousetheitrelatedcircuitdebuggingenlargeoperationwork
7、,duetosolveintheamplifyingcircuit,oftenappearoftheself-excitedoscillationproblem,difficulttoaccuratetuningproblem,throughthesimulationsoftwareMultisimfinallysimulationofsinewave.(http://fanyi.youdao.com/translate"o")(http://fanyi.youdao.com/translate"o")This
8、paperstudiesthecharacteristicsofonetypeofoscillationnetworkandUSESitspropertiestodesignagoodoscillationcircuit.Thecharacteristicsofthecircuitareobtainedandthecircuitisdesignedaccor