Lesson 05 Transistor 电子技术专业英语教程.ppt

1、Lesson 5 Transistor,Unit 2 Semiconductor device,电子技术专业英语教程冯新宇 主编,电子工业出版社 ,2020/8/24,电子技术专业英语教程,2,Lesson 5 Transistor,Backgrounds Text tour Language in use Vocabulary Structure Reading/writing techniques,2020/8/24,电子技术专业英语教程,3,Terminology Bipolar junction transistor Field-effect transistor Transistor

2、 characteristics History of the transistor,Backgrounds,2020/8/24,电子技术专业英语教程,4,Terminology,2020/8/24,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。,Bipolar junction transistor,The bipolar junction transistor consists of three regions of semiconductor material. One type

3、 is called a p-n-p transistor, in which two regions of p-type material sandwich a very thin layer of n-type material.,2020/8/24,电子技术专业英语教程,6,The two p-type material regions of the p-n-p transistor are called the emitter and collector and the n-type material is called the base. 在p-n-p 晶体管中，两个p型材料区叫做发

4、射区和集电区，n型材料区叫做基区。,Bipolar junction transistor,2020/8/24,电子技术专业英语教程,7,Bipolar junction transistor,The only functional difference between a p-n-p transistor and an n-p-n transistor is the proper biasing (polarity) of the junctions when operating. For any given state of operation, the current direction

5、s and voltage polarities for each type of transistor are exactly opposite each other. 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。,2020/8/24,电子技术专业英语教程,8,A FET has three terminals，a source, a drain and a gate. The semiconductor region between source and drain is called a c

6、hannel and its conductivity is controlled by the potential of the gate terminal. 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-effect transistor,2020/8/24,电子技术专业英语教程,9,There are three ways of connecting a transistor, depending on the use to which it is being put. The ways are classified by the

7、 electrode that is common to both the input and the output. They are called: (a) common-base configuration (b) common-emitter configuration (c) common-collector configuration 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,Transistor characteristics,2020/8/24,电子技术专业英语教程,10,the f

8、irst type of solid-state electronic transistor was made by researchers John Bardeen and Walter Houser Brattain at Bell Laboratories in December 1947. The grown-junction transistor was the first type of bipolar junction transistor made,whichwas invented by William Shockley at Bell Labs on June 23, 19

9、48 1950年：威廉邵克雷开发出双极晶体管（Bipolar Junction Transistor），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Regency TR1投入市场，仅包含4只锗晶体管。,2020/8/24,电子技术专业英语教程,11,Outline Brief introduction (para.1) Bipolar junction transistor (para.2, 3, 4) Field-effect transistor (para.5) Inductor (para. 15

10、),Text tour,2020/8/24,电子技术专业英语教程,12,A means of controlling the currents and voltages present in electronic circuits. An opposition to current flow,Resistor,2020/8/24,电子技术专业英语教程,13,A device for storing electric charge deposite and extracte charge,Capacitor,2020/8/24,电子技术专业英语教程,14,coil of wire An iron

11、-cored inductor is often called a choke,Inductor,2020/8/24,电子技术专业英语教程,15,Vocabulary component ，coil ，amplifier Structure,Language in use,2020/8/24,电子技术专业英语教程,16,Vocabulary,2020/8/24,电子技术专业英语教程,17,a constituent part or aspect of something more complex. 组成；成分 any electrical device . 元件 forming or func

12、tioning as a part or aspect; constituent . 成分的， 分量的,component in dictionary,2020/8/24,电子技术专业英语教程,18,component in text,This section introduces several of the most common types of electronic component, including resistors, capacitors and inductors.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。 These are often referred

13、to as passive components as they cannot, by themselves, generate voltage or current.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。,2020/8/24,电子技术专业英语教程,19,component index成份指数 reactive component无功分量 active component有功分量,component in use,2020/8/24,电子技术专业英语教程,20,to wind or gather (ropes, hair, etc) into loops or (of ro

14、pe, hair, etc) to be formed in such loops . 将卷盘成圈或螺旋形 a single loop of such a series线圈 an arrangement of pipes in a spiral or loop, as in a condenser旋管,coil in dictionary,2020/8/24,电子技术专业英语教程,21,coil in text,The basic form of an inductor is simply a coil of wire. 电感的基本形式是简单的一匝线圈。,2020/8/24,电子技术专业英语教

15、程,22,current through primary coil induces current in secondary coil.通过原线圈在次级线圈中产生电流。 coil spring 弹簧 cooling coil 冷却盘管 primary coil 一次线圈,coil in use,2020/8/24,电子技术专业英语教程,23,an electronic device used to increase the strength of the signal fed into it 放大器 such a device used for the amplification of aud

16、io frequency signals in a radio, etc 扩音器 a person or thing that amplifies 扩大的人(物),amplifier in dictionary,2020/8/24,电子技术专业英语教程,24,An understanding of the characteristics and application of passive components is an essential prerequisite to understanding the operation of the circuits used in amplifie

17、rs, oscillators, filters and power supplies. 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。,amplifier in text,2020/8/24,电子技术专业英语教程,25,power amplifier 功率放大器 differential amplifier 差动放大器 operational amplifier 运算放大器 magnetic amplifier 磁放大器,amplifier in use,2020/8/24,电子技术专业英语教程,26,Structure,2020/8/24,电子技术专业英语教

18、程,27,Conventional forms of resistor obey a straight line law when voltage is plotted against current and this allows us to use resistors as a means of converting current into a orresponding voltage drop, and vice versa. 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，a straight line law是宾语，在从句中voltage是主语，is plotted against是谓语，current是宾语。后句中，this是主语，指代前面的整个句子，allows us to use是谓语，as a means of做状语修饰宾语resistors.,2020/8/24,电子技术专业英语教程,28,Reading / Writing techniques