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1、个人电子技术经验积累1:whatisthepositivebiasofthediode?ThepositivevoltageisaddedtothePsection,whiletheNsectionplusthenegativevoltage・Positivebias・Thepositivebiasisthatthediffusioncurrentincreasesgreatly,whilethereversebiasincreasesthedriftcurrent・However,thedriftcurrentisformedbythemovementofminoritycarri
2、ers,sothereisreversesaturationcurrent!2:generallowfrequencysignal,thethicknessoftheresistaneelineisinordertoflowhowmuchcurrent,andthethicknessoftheresistance,regardlessofthesizeofthecopperwireitselfisverysmallresistance,ofcourse,exceptionalcircumstancesexception!The3:mostubeisacarrierthatrelies
3、onacarrierofmultipleelectrons.Itisnotthesameasthedaughterandthedaughterofthetransistor・Theutilitymodelisaselfisolatingdevice,andtheisolationislandinthecrystaltriodeisnotneededtosavetheheartsliceareaandissuitablefortheultralargescalecircuit・Itischaracterizedbyvoltagecontrol!Thatis,thecontrolterm
4、inalrequireslittlecurrentandiseasytointegrate・4:howtojudgetheCBEpoleofthetriode?AndhowtodeterminetheGDSoftheMOStube?Adirectlycheckdata,BwithMultimeterdiodefile,Pconnectionispositive,nnegativewhenthereisadigitaldisplay,sothereareafewmeasurements,youcanknowwhetherPNPorNPN,Bendwhichcanbeconcluded・
5、ThenmeasurethemagnificationwiththeHEFmeterofthemeter・Ifyouansweritcorrectly,youcanjudgetheresult・TheMOStubeisnormallyconnectedtotheheatsinkbytheD・OK,theDissimple・AddapowertotheGS,oryoucanusethemultimeterdiodetolookattheGS,andthentoDS,there，sadigitaldisplay.AndiftheshortcircuitDSThereisnonumbert
6、ogo.Youcanconfirmgs.6:DCfeedbackisusedtostabilizethequiescentoperatingpoint,andACfeedbackisusedtoimprovetheperformanceoftheamplifier・7:capacitanceandresistanceofseriesparallelrelationshipisopposite・Theinductanceshouldbethesameastheresistance,butthereisalsotheconceptofmutualinductance,sothereiss
7、tilladifferenceNeedproof!8:oscilloscopedigitaldisplay,onlyinthescreenshowsanumberofcyclestoshow,toomuchdoesnotdisplay!9:commonbaseamplifierisnoninvertingamplifier・Theoutputresistanceislargeandthevoltagegainis1.Itiscalledfreewheeli
