Lesson 05 Transistor 电子技术专业英语教程

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Lesson5TransistorUnit2Semiconductordevice《电子技术专业英语教程》冯新宇主编电子工业出版社《电子技术专业英语教程》2Lesson5Transistor•Backgrounds•Texttour•Languageinuse–VocabularyStructure–Reading/writingtechniques2020/1/30《电子技术专业英语教程》3•Terminology–Bipolarjunctiontransistor–Field-effecttransistor–Transistorcharacteristics•HistoryofthetransistorBackgrounds2020/1/30《电子技术专业英语教程》4Terminology2020/1/30《电子技术专业英语教程》5•半导体材料组成了双极型晶体管的三个区。第一种类型叫做p-n-p晶体管,结构是两个p型材料间夹着一层薄的n型材料,类似于三明治结构。Bipolarjunctiontransistor•Thebipolarjunctiontransistorconsistsofthreeregionsofsemiconductormaterial.Onetypeiscalledap-n-ptransistor,inwhichtworegionsofp-typematerialsandwichaverythinlayerofn-typematerial.2020/1/30《电子技术专业英语教程》6•Thetwop-typematerialregionsofthep-n-ptransistorarecalledtheemitterandcollectorandthen-typematerialiscalledthebase.•在p-n-p晶体管中,两个p型材料区叫做发射区和集电区,n型材料区叫做基区。Bipolarjunctiontransistor2020/1/30《电子技术专业英语教程》7Bipolarjunctiontransistor•Theonlyfunctionaldifferencebetweenap-n-ptransistorandann-p-ntransistoristheproperbiasing(polarity)ofthejunctionswhenoperating.Foranygivenstateofoperation,thecurrentdirectionsandvoltagepolaritiesforeachtypeoftransistorareexactlyoppositeeachother.•p-n-p管和n-p-n管之间唯一的本质区别在于工作时结的偏置(极性)不同。在任意给定的工作模式下,两种晶体管的电流方向和电压极性正好相反。2020/1/30《电子技术专业英语教程》8•AFEThasthreeterminals,asource,adrainandagate.Thesemiconductorregionbetweensourceanddrainiscalledachannelanditsconductivityiscontrolledbythepotentialofthegateterminal.•场效应晶体管有三个端:源、漏、栅。源和漏之间的半导体区域称为沟道,导电性是由栅极电压决定。Field-effecttransistor2020/1/30《电子技术专业英语教程》9•Therearethreewaysofconnectingatransistor,dependingontheusetowhichitisbeingput.Thewaysareclassifiedbytheelectrodethatiscommontoboththeinputandtheoutput.Theyarecalled:(a)common-baseconfiguration(b)common-emitterconfiguration(c)common-collectorconfiguration•晶体管的连接方式有三种,取决于它使用时怎样放置。通常以使用的输入极和输出极分类。它们分别是:(a)共基极(b)共发射极(c)共集电极Transistorcharacteristics2020/1/30《电子技术专业英语教程》10•thefirsttypeofsolid-stateelectronictransistorwasmadebyresearchersJohnBardeenandWalterHouserBrattainatBellLaboratoriesinDecember1947.•Thegrown-junctiontransistorwasthefirsttypeofbipolarjunctiontransistormade,whichwasinventedbyWilliamShockleyatBellLabsonJune23,1948•1950年:威廉·邵克雷开发出双极晶体管(BipolarJunctionTransistor),这是现在通行的标准的晶体管。•1953年:第一个采用晶体管的商业化设备投入市场,即助听器。•1954年10月18日:第一台晶体管收音机RegencyTR1投入市场,仅包含4只锗晶体管。2020/1/30《电子技术专业英语教程》11•Outline–Briefintroduction(para.1)–Bipolarjunctiontransistor(para.2,3,4)–Field-effecttransistor(para.5)–Inductor(para.15)Texttour2020/1/30《电子技术专业英语教程》12•Ameansofcontrollingthecurrentsandvoltagespresentinelectroniccircuits.•AnoppositiontocurrentflowResistor2020/1/30《电子技术专业英语教程》13•Adeviceforstoringelectriccharge•depositeandextractechargeCapacitor2020/1/30《电子技术专业英语教程》14•coilofwire•Aniron-coredinductorisoftencalledachokeInductor2020/1/30《电子技术专业英语教程》15•Vocabularycomponent,coil,amplifier•StructureLanguageinuse2020/1/30《电子技术专业英语教程》16Vocabulary2020/1/30《电子技术专业英语教程》17•aconstituentpartoraspectofsomethingmorecomplex.组成;成分•anyelectricaldevice.元件•formingorfunctioningasapartoraspect;constituent.成分的,分量的componentindictionary2020/1/30《电子技术专业英语教程》18componentintext1.Thissectionintroducesseveralofthemostcommontypesofelectroniccomponent,includingresistors,capacitorsandinductors.本节介绍几种最常用的电子元件类型,包括电阻、电容和电感。2.Theseareoftenreferredtoaspassivecomponentsastheycannot,bythemselves,generatevoltageorcurrent.它们经常被看作是无源元件,因为它们本身不能产生电压或电流。2020/1/30《电子技术专业英语教程》19•componentindex成份指数•reactivecomponent无功分量•activecomponent有功分量componentinuse2020/1/30《电子技术专业英语教程》20•towindorgather(ropes,hair,etc)intoloopsor(ofrope,hair,etc)tobeformedinsuchloops.将…卷[盘]成圈或螺旋形•asingleloopofsuchaseries线圈•anarrangementofpipesinaspiralorloop,asinacondenser旋管coilindictionary2020/1/30《电子技术专业英语教程》21coilintext•Thebasicformofaninductorissimplyacoilofwire..•电感的基本形式是简单的一匝线圈。2020/1/30《电子技术专业英语教程》22•currentthroughprimarycoilinducescurrentinsecondarycoil.通过原线圈在次级线圈中产生电流。•coilspring弹簧•coolingcoil冷却盘管•primarycoil一次线圈coilinuse2020/1/30《电子技术专业英语教程》23•anelectronicdeviceusedtoincreasethestrengthofthesignalfedintoit放大器•suchadeviceusedfortheamplificationofaudiofrequencysignalsinaradio,etc扩音器•apersonorthingthatamplifies扩大的人(物)amplifierindictionary2020/1/30《电子技术专业英语教程》24•Anunderstandingofthecharacteristicsandapplicationofpassivecomponentsisanessentialprerequisitetounderstandingtheoperationofthecircuitsusedinamplifiers,oscillators,filtersandpowersupplies.•理解无源元件的特性和应用是理解放大器、振荡器、滤波器和电源工作原理的首要条件。amplifierintext2020/1/30《电子技术专业英语教程》25•poweramplifier•功率放大器•differentialamplifier•差动放大器•operationalamplifier•运算放大器•magneticamplifier•磁放大器amplifierinuse2020/1/30《电子技术专业英语教程》26Structure2020/1/30《电子技术专业英语教程》27•Conventionalformsofresistorobeyastraightlinelawwhenvoltageisplottedagainstcurrentandthisallowsustouseresistorsasameansofconvertingcurrentintoaorrespondingvoltagedrop,andviceversa.•当电压相对电流标绘时电阻通常遵从线性规律形式,可以把电阻作为电流转换成为相应压降的一种手段,反之亦然。•在这个长句中,由and连接两个句子构成。前一句是一个when引导时间状语从句,主句中resistor是主语,obey是谓语,astraightlinelaw是宾语,在从句中voltage是主语,isplottedagainst是谓语,current是宾语。后句中,this是主语,指代前面的整个句子,allowsustouse是谓语,asameansof…做状语修饰宾语resistors.2020/1/30《

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