电工电子技术（electrical and electronic technology）

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1、电工电子技术（ElectricalandElectronicTechnology）Thisarticleiscontributedbycaicai040PptdocumentsmayexperiencepoorbrowsingontheWAPside.ItisrecommendedthatyoufirstselectTXT,ordownloadthesourcefiletothelocalview.ElectricalandElectronicTechnologySecondlecturesJuly8,2006OneAnalogElectronics:analoge

2、lectronics:Zenerdiode,principleandtypicalapplicationcircuit;?Diode,Zenerprincipleandtypicalapplicationcircuit;triodestructureprincipleandvoltageamplificationcircuit;?Triodestructureprincipleandvoltageamplificationcircuit;integratedoperationalamplifierprincipleandapplication.Principlean

3、dapplicationofintegratedoperationalamplifier.Digitalelectronictechnology:digitalelectronictechnology:Basicknowledgeofdigitalcircuits;basicknowledgeofdigitalcircuits;basiclogicgatesandcombinationallogiccircuits;basiclogicgatesandcombinationallogiccircuits;flipflopsandsequentiallogiccirc

4、uits.Flipflopsandsequentiallogiccircuits.TwoDiode,seventhsectiondiode,regulatortube1one-wayconductivepropertiesandsemiconductorpnjunctiondiodezenerdiodePNjunction23requirements:1.understandtheone-wayconductivityofPNjunction;unidirectionalunidirectionalconductivityunderstandingofPNjunct

5、iondiodes,voltageregulatortube;2.tounderstandthebasicstructureandworkingprincipleofthezenerdiode,tounderstandthebasicstructureandcharacteristiccurveandunderstandthemainmeaningofparameter;andcharacteristiccurve,understandthemainmeaningofparameter;3.willanalyzecircuitscontainingdiodes.Th

6、ecircuitthatcontainsadiodeisanalyzed.ThreeI.unidirectionalconductivityofPNjunctionandunidirectionalconductivityofPNjunctionPNjunctionforwardbias:Pzonepluspositivevoltage,junctionpositivebias:Zonepluspositivevoltagezonepluspositivevoltage,junctionforwardbias,Nzoneplusnegativevoltagezone

7、plusnegativevoltageTheelectricfieldbecomesthin++++inFourTheinternalelectricfieldisweakened,theinternalelectricfieldisweakened,andthediffusionofthemultimemberisstrengthenedtoformalargerdiffusioncurrent.Diffusioncurrent.+PExternalelectricfield-N_ThereversebiaszoneofthePNjunctionaddsneg