《专业英语》课件(2)-The Operational Amplifier
专业英语课件(会计专业)
A financial statement that shows the inflow and outflow of cash and cash equivalents over a period of time
The process of calculating and interpreting financial ratios to assess a company's performance, financial position, and liquidity
Understand and apply international accounting standards: Learners should gain a through understanding of international accounting standards and be able to apply them in practice
Enhance critical thinking and problem solving skills: Through the study of accounting professional English, learners should develop critical thinking and problem solving skills that are essential for success in the accounting field
The Learning Objectives of Accounting
Professional English
01
02
03
Develop language skills for effective communication: Learners should be able to communicate confidently and effectively in English, both orally and in writing, in accounting related contexts
交通运输专业英语课件 (2)
Lesson 3
Internal Combustion Engine （PartⅡ）
elevate v.抬高，举起，加大仰角 抬高， 抬高 举起， thermostat n.节温器，恒温器 节温器， thermos n.热水瓶 节温器 热水瓶 by-pass n.旁路，分路，迂回 旁路， 旁路 分路， extract vt.取得，得出，获得 取得， 取得 得出， upstroke n.上升冲程 上升冲程 pressurize v.使增压，对…加压 使增压， 使增压 加压 inject vt.注射，喷射 注射， 注射 nozzle n.喷嘴、壶嘴、鼻子 喷嘴、 jet n.喷嘴、喷射 喷嘴、 喷嘴 壶嘴、 喷嘴 occupant n.占有者，乘员 占有者， 占有者 absorb vt.吸收，缓冲 吸收， 吸收
交通运输专业英语
Lesson 3
Internal Combustion Engine （PartⅡ）
When the contact breaker points open, interrupting the flow of current (Fig.3.2b) a rapid voltage change is produced across the primary winding and a high voltage (15,000-20,000V) is induced across the secondary winding. creating… : 表结果 当断电器触点断开，电流被中断（如图3.2b），引起低压线圈中电压的 ），引起低压线圈中电压的 当断电器触点断开，电流被中断（如图 ）， 快速变化，并在高压线圈中感应出15000～20000v的高压。 的高压。 快速变化，并在高压线圈中感应出 ～ 的高压
大学电气专业-专业英语课件-6
①A typical DC generator or motor usually consists of an armature core, an air gap, poles, and a yoke which form the magnetic circuit; an armature winding, a field winding, brushes and a commutator which form the electric circuit; and a frame, end bells, bearings, brush supports and a shaft which provide the mechanical support.
二极管是一种基本的电子元件。它限制电流在一个方向上 流动的能力是实际上每个电子电路生产中所依赖的关键性 质，从最小的电源到最大的工业过程控制器。
专业英语课件
The purpose of this course is to help learners improve their English proficiency and enhance their competitiveness in the workplace
Course objectives
01
To improve English proficiency in listening, speaking, reading, and writing
02
To learn professional knowledge and skills related
to English
04
CATALOGUE
Professional English reading c
Reading Skills for Scientific Texts
1 2
Scientific reading skills
Able to read and understand the main ideas, methods, and results of scientific research articles
Critical thinking
Able to analyze and evaluate the credibility and validity of scientific research articles
3
Language skills
Proficient in English grammar, vocabulary, and presence structure to better understand scientific texts
自动化专业英语全文翻译
《自动化专业英语教程》-王宏文主编-全文翻译PART 1Electrical and Electronic Engineering BasicsUNIT 1A Electrical Networks ————————————3B Three-phase CircuitsUNIT 2A The Operational Amplifier ———————————5B TransistorsUNIT 3A Logical Variables and Flip-flop ——————————8B Binary Number SystemUNIT 4A Power Semiconductor Devices ——————————11B Power Electronic ConvertersUNIT 5A Types of DC Motors —————————————15B Closed-loop Control of DC DriversUNIT 6A AC Machines ———————————————19B Induction Motor DriveUNIT 7A Electric Power System ————————————22B Power System AutomationPART 2Control TheoryUNIT 1A The World of Control ————————————27B The Transfer Function and the Laplace Transformation —————29 UNIT 2A Stability and the Time Response —————————30B Steady State—————————————————31 UNIT 3A The Root Locus —————————————32B The Frequency Response Methods: Nyquist Diagrams —————33 UNIT 4A The Frequency Response Methods: Bode Piots —————34B Nonlinear Control System 37UNIT 5 A Introduction to Modern Control Theory 38B State Equations 40UNIT 6 A Controllability, Observability, and StabilityB Optimum Control SystemsUNIT 7 A Conventional and Intelligent ControlB Artificial Neural NetworkPART 3 Computer Control TechnologyUNIT 1 A Computer Structure and Function 42B Fundamentals of Computer and Networks 43UNIT 2 A Interfaces to External Signals and Devices 44B The Applications of Computers 46UNIT 3 A PLC OverviewB PACs for Industrial Control, the Future of ControlUNIT 4 A Fundamentals of Single-chip Microcomputer 49B Understanding DSP and Its UsesUNIT 5 A A First Look at Embedded SystemsB Embedded Systems DesignPART 4 Process ControlUNIT 1 A A Process Control System 50B Fundamentals of Process Control 52UNIT 2 A Sensors and Transmitters 53B Final Control Elements and ControllersUNIT 3 A P Controllers and PI ControllersB PID Controllers and Other ControllersUNIT 4 A Indicating InstrumentsB Control PanelsPART 5 Control Based on Network and InformationUNIT 1 A Automation Networking Application AreasB Evolution of Control System ArchitectureUNIT 2 A Fundamental Issues in Networked Control SystemsB Stability of NCSs with Network-induced DelayUNIT 3 A Fundamentals of the Database SystemB Virtual Manufacturing—A Growing Trend in AutomationUNIT 4 A Concepts of Computer Integrated ManufacturingB Enterprise Resources Planning and BeyondPART 6 Synthetic Applications of Automatic TechnologyUNIT 1 A Recent Advances and Future Trends in Electrical Machine DriversB System Evolution in Intelligent BuildingsUNIT 2 A Industrial RobotB A General Introduction to Pattern RecognitionUNIT 3 A Renewable EnergyB Electric VehiclesUNIT 1A 电路电路或电网络由以某种方式连接的电阻器、电感器和电容器等元件组成。
006-P1U2A-B-Operational Amplifier
P1U2A The Operational Amplifier
第一部分第二单元课文A
运算放大器
Integrated circuit technology allows construction of many amplifier circuits on a single composite "chip" of semiconductor material. One key to the success of an operational amplifier is the "cascading" of a number of transistor amplifiers to create a very large total gain. That is, the number A in Eq. (1-2A-1) can be on the order of 100,000 or more. (For example, cascading of five transistor amplifiers, each with a gain of 10, would yield this value for A.) A second important factor is that these circuits can be built in such a way that the current flow into each of the inputs is very small. A third important design feature is that the output resistance of the operational amplifier (Ro) is very small. This in turn means that the output of the device acts like an ideal voltage source.
《专业英语》课件(2)-The Operational Amplifier
2
专业英语的词汇特点
二、缩略词多 缩略词或缩写词经常大量出现在科技文章中， 缩略词或缩写词经常大量出现在科技文章中，掌 握一些常见的缩略词对阅读外文资料是十分必要的。 握一些常见的缩略词对阅读外文资料是十分必要的。 除去一些常用的缩略词外， 除去一些常用的缩略词外，有时某一篇论文的作者 还会将仅在该文中使用的术语转换为缩略词。 还会将仅在该文中使用的术语转换为缩略词。 AC(alternate current)交流电路 交流电路 IC(integrated circuit)集成电路 集成电路 Eq.(equation)等式 等式 Fig.(figure) 图
授课教师： 授课教师：吴玲
3
专业英语的词汇特点
三、组合词和派生词多 大量使用复合词和派生词也是科技文章的一个特点。 大量使用复合词和派生词也是科技文章的一个特点。 随着技术发展的需要， 随着技术发展的需要，经常会组合或派生出一些新的词 汇，而有些词汇可能无法在字典中查到。 而有些词汇可能无法在字典中查到。 1. 组合词 例如： open-loop 开环 例如：feedback 反馈 forward-gain 前向增益 bandwidth 带宽 2. 派生词，一般组成为：前缀+词根 后缀=新词 派生词，一般组成为：前缀 词根+后缀 新词 词根 后缀 例如： 例如：conduct 传导
授课教师： 授课教师：吴玲
9
(2) with + 抽象 抽象n.=adv. with care =carefully with accuracy=accurately with precision=precisely with ease = easefully with efficiency = efficiently with skill = skillfully with difficulty=difficultly e.g: This experiment should be done with care. 这个实验应该仔细地做。 这个实验应该仔细地做。
专业英语王立琦版课文翻译
ResistorA resistor is a two-terminal electronic component that opposes an electric current by producing a voltage drop between its terminals in proportion to the current, that is ,in accordance with Ohm’s law :V=IR .The electrical resistance R is equal to the voltage drop V across the resistor divided by the current I through the resistor. Resistors are used as part of electrical networks and electronic circuits.译：电阻器是一个二端口电子元件,电阻是阻止电流流动，通过按比例产生其端子之间的电压降的电流,也就是说,根据欧姆定律:V = IR。
电阻R等于电压降V除以通过电阻的电流I。
电阻作为电子网络和电子电路的一部分。
TransistorIn electronics, a transistor is a semiconductor device commonly used to amplify or switch electronic signals . A transistor is made of a solid piece of a semiconductor material , with at least three terminals for connection to anext ernal circuit. A voltage or current applied to one pair of the transistor’s terminals changes the current flowing through another pair of terminals. Because the controlled current can be much larger than the controlling current, the transistor provides amplification of a signal. The transistor is the fundamental building block of modern electronic devices, and is used in radio, telephone, computer and other electronic systems. Some transistors are packaged individually but most are found in integrated circuits.译：在电子技术中，晶体管是一种，常用来放大或进行开关控制电子信号的半导体器。
《专业英语》课件(2)-The Operational Amplifier
16
P1U2A
The Operational Amplifier
[2] Not shown are other connections necessary to run
the Op-Amp such as its attachments to power supplies
and to ground potential.
(5) 作插入语
如：in fact; of course; for example… e.g: For example, we can make an electric bell with this kind of magnet. 例如，我们可以用这种磁铁来制作电铃。
专业英语
5
2. 介词的一些特殊用法 (1) of + 抽象n.=adj. of interest=interesting of use =useful of value =valuable of importance=important of help =helpful
因此可以方便地构成各种电子线路。
专业英语
12
P1U2A
The Operational Amplifier
阅读文章回答问题： 1. What problem is usually concerned with electrical
devices as amplifiers?
2. What are the advantages of operational amplifier? 3. How many characteristics are of operational amplifier? And what are they? 4. What is one of the key features of Op-Amp design?
自动化专业英语教程
PART 1Electrical and Electronic Engineering BasicsUNIT 1A Electrical Networks ————————————3B Three-phase CircuitsUNIT 2A The Operational Amplifier ———————————5B TransistorsUNIT 3A Logical Variables and Flip-flop ——————————8B Binary Number SystemUNIT 4A Power Semiconductor Devices ——————————11B Power Electronic ConvertersUNIT 5A Types of DC Motors —————————————15B Closed-loop Control of DC DriversUNIT 6A AC Machines ———————————————19B Induction Motor DriveUNIT 7A Electric Power System ————————————22B Power System AutomationPART 2Control TheoryUNIT 1A The World of Control ————————————27B The Transfer Function and the Laplace Transformation —————29 UNIT 2A Stability and the Time Response —————————30B Steady State—————————————————31 UNIT 3A The Root Locus —————————————32B The Frequency Response Methods: Nyquist Diagrams —————33 UNIT 4A The Frequency Response Methods: Bode Piots —————34B Nonlinear Control System 37UNIT 5 A Introduction to Modern Control Theory 38B State Equations 40UNIT 6 A Controllability, Observability, and StabilityB Optimum Control SystemsUNIT 7 A Conventional and Intelligent ControlB Artificial Neural NetworkPART 3 Computer Control TechnologyUNIT 1 A Computer Structure and Function 42B Fundamentals of Computer and Networks 43UNIT 2 A Interfaces to External Signals and Devices 44B The Applications of Computers 46UNIT 3 A PLC OverviewB PACs for Industrial Control, the Future of ControlUNIT 4 A Fundamentals of Single-chip Microcomputer 49B Understanding DSP and Its UsesUNIT 5 A A First Look at Embedded SystemsB Embedded Systems DesignPART 4 Process ControlUNIT 1 A A Process Control System 50B Fundamentals of Process Control 52UNIT 2 A Sensors and Transmitters 53B Final Control Elements and ControllersUNIT 3 A P Controllers and PI ControllersB PID Controllers and Other ControllersUNIT 4 A Indicating InstrumentsB Control PanelsPART 5 Control Based on Network and InformationUNIT 1 A Automation Networking Application AreasB Evolution of Control System ArchitectureUNIT 2 A Fundamental Issues in Networked Control SystemsB Stability of NCSs with Network-induced DelayUNIT 3 A Fundamentals of the Database SystemB Virtual Manufacturing—A Growing Trend in AutomationUNIT 4 A Concepts of Computer Integrated ManufacturingB Enterprise Resources Planning and BeyondPART 6 Synthetic Applications of Automatic TechnologyUNIT 1 A Recent Advances and Future Trends in Electrical Machine DriversB System Evolution in Intelligent BuildingsUNIT 2 A Industrial RobotB A General Introduction to Pattern RecognitionUNIT 3 A Renewable EnergyB Electric VehiclesUNIT 1A 电路电路或电网络由以某种方式连接的电阻器、电感器和电容器等元件组成。
英语学习专业英语讲义PPT课件
2、从句在说明主句时有三种可能位置-前、后、中
第13页/共17页
中间-嵌入句将主句分成两部分，造成阅读理解的困难。
This is not, of course, the case in human affairs, and the most that can be done is to seek for mathematical models which describe, however imperfectly as yet they are, the presumed behavior of the system or situation under investigation.
D: 缩略词 Laboratory: lab unidentified flying object: UFO Radio detection and ranging: radar Transistor 和receiver合成transceiver：收发机 Telecommunications satelite: TELESAT通信卫星 练习1：写出下列缩略词的中英文全称：PID、PLC、PLD、MOS、TTL、TS、
总结：
语法分析时：
1、找谓语，再找主语。汉语常略主语，而英语中是由主、谓
第14页/共17页
科技英语翻译技巧（translating skills of scientific and technical English)
自动化专业英语教程(王宏文)第二版全文翻译
《自动化专业英语教程》-王宏文-全文翻译PART 1Electrical and Electronic Engineering BasicsUNIT 1A Electrical Networks ————————————3B Three-phase CircuitsUNIT 2A The Operational Amplifier ———————————5B TransistorsUNIT 3A Logical Variables and Flip-flop ——————————8B Binary Number SystemUNIT 4A Power Semiconductor Devices ——————————11B Power Electronic ConvertersUNIT 5A Types of DC Motors —————————————15B Closed-loop Control of DC DriversUNIT 6A AC Machines ———————————————19B Induction Motor DriveUNIT 7A Electric Power System ————————————22B Power System AutomationPART 2Control TheoryUNIT 1A The World of Control ————————————27B The Transfer Function and the Laplace Transformation —————29 UNIT 2A Stability and the Time Response —————————30B Steady State—————————————————31 UNIT 3A The Root Locus —————————————32B The Frequency Response Methods: Nyquist Diagrams —————33 UNIT 4A The Frequency Response Methods: Bode Piots —————34B Nonlinear Control System 37UNIT 5 A Introduction to Modern Control Theory 38B State Equations 40UNIT 6 A Controllability, Observability, and StabilityB Optimum Control SystemsUNIT 7 A Conventional and Intelligent ControlB Artificial Neural NetworkPART 3 Computer Control TechnologyUNIT 1 A Computer Structure and Function 42B Fundamentals of Computer and Networks 43UNIT 2 A Interfaces to External Signals and Devices 44B The Applications of Computers 46UNIT 3 A PLC OverviewB PACs for Industrial Control, the Future of ControlUNIT 4 A Fundamentals of Single-chip Microcomputer 49B Understanding DSP and Its UsesUNIT 5 A A First Look at Embedded SystemsB Embedded Systems DesignPART 4 Process ControlUNIT 1 A A Process Control System 50B Fundamentals of Process Control 52UNIT 2 A Sensors and Transmitters 53B Final Control Elements and ControllersUNIT 3 A P Controllers and PI ControllersB PID Controllers and Other ControllersUNIT 4 A Indicating InstrumentsB Control PanelsPART 5 Control Based on Network and InformationUNIT 1 A Automation Networking Application AreasB Evolution of Control System ArchitectureUNIT 2 A Fundamental Issues in Networked Control SystemsB Stability of NCSs with Network-induced DelayUNIT 3 A Fundamentals of the Database SystemB Virtual Manufacturing—A Growing Trend in AutomationUNIT 4 A Concepts of Computer Integrated ManufacturingB Enterprise Resources Planning and BeyondPART 6 Synthetic Applications of Automatic TechnologyUNIT 1 A Recent Advances and Future Trends in Electrical Machine DriversB System Evolution in Intelligent BuildingsUNIT 2 A Industrial RobotB A General Introduction to Pattern RecognitionUNIT 3 A Renewable EnergyB Electric VehiclesUNIT 1A 电路电路或电网络由以某种方式连接的电阻器、电感器和电容器等元件组成。
1.Operational Amplifiers and Applications
Operational Amplifiers and Applications
Application
2
Comparator:
An operational amplifier has a well balanced difference input and a very high gain. This parallels the characteristics of comparators and can be substituted in applications with low-performance requirements. Its transfer function is typically written as:
Operational Amplifiers and Applications
Acknowledgment
In this semester, I learned a lot of knowledge. Thanks for our team members, we improved a lot together. Specially thanks for professor Wang. Thank you very much!
1.Abstract 2.Introduction 3.Classification 4.Application 5.Conclusion
Operational Amplifiers and Applications
Abstract
Operational Amplifiers are among the most widely used electronic devices today. Many standard IC op-amps cost only a few cents in moderate production volume, however some integrated or hybrid operational amplifiers with special performance specifications may cost over $100 in small quantities. The report shows the basic knowledge of operational amplifier, ranging from the development history to the application in daily life and helps you to have a deeper understanding of operational amplifier for further design and use.
Operational_Amplifiers(运放电路的生动介绍)
ME 6405 Introduction to Mechatronics
Basic Circuits Review
• Capacitance (Farad – F)
– Series
– Parallel
• Inductance (Henry – H)
– Series
– Parallel
ME 6405 Introduction to Mechatronics
ME 6405 Introduction to Mechatronics
High pass filter (active)
Band-pass filter cascades both high-pass and low-pass!
ME 6405 Introduction to Mechatronics
ME 6405 Introduction to Mechatronics
Filters
• Decouple the low-pass RC filter from the load.
Uses: Simple audio. Remove frequencies over 20kHz (audible)
Difference
Vout
V 2 R3 R1 R4 V1R3 ( R4 R2 ) R1 R1
If all resistors are equal:
Vout V2 V1
ME 6405 Introduction to Mechatronics
Integrating Op-Amp
ME 6405 Introduction to Mechatronics
Low-pass Filter (active)
The Operational Amplifier
Figure 6.3 Operational amplifier
Integrated circuit technology allows construction of many amplifier circuits on a single composite “chip” of semiconductor material．One key to the success of an operational amplifier is The “cascading” of a number of transistor amplifiers to create a very large total gain．That is, the number A in eq (6.1) can be on the order of 100 000 or more．(For example，cascading of five transistor amplifiers，each with a gain of 10，would yield this Value for A.) A second important factor is that these circuits can be built in such a way that the current flow into each of the inputs is very small．A third important design feature is that the output resistance of the operational amplifier (R0) is very small．This in turn means that the output of the device acts like an ideal voltage source． We now can analyze the particular amplifier circuit given in Figure.6.4 using these characteristics．First，we note that the voltage at the positive input，U +，is equal to the source voltage, U U s ．Various currents are defined in part b of the fig．Applying KVL around the outer loop in Figure 6.4 and remembering that the output voltage， U0 ， is measured with respect to ground，we have
Chapter 4 The Operational Amplifier
V+
ip
+
io
+ in VCC
VVCC iC-
-
+
Figure 4.5 Terminal current variables.
4.2 Terminal Voltage and Current
The terminal behavior of the op amp as a linear circuit element is characterized by constraints on the input voltages and the input currents. The voltage constraint is derived from the voltage transfer characteristic of the op amp integrated circuit and is pictured in Fig.4.6. The voltage transfer characteristic describes how the output voltage varies as a function of the input voltages- that is, how voltages is transferred from the input to the output. The equation for the voltage transfer characteristic is
VCC A(v p vn ) VCC vo A(v p vn ) VCC A(v p vn ) VCC A(v p vn ) VCC VCC
(4.1)
4.2 Terminal Voltage and Current
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Not shown： 名词，作为主语
专业英语
17
P1U2A
The Operational Amplifier
[3] This is one of the key features of Op-Amp design— the action of the circuit on signals depends only upon the external elements which can be easily varied by the designer and which do not depend upon the detailed character of the Op-Amp itself. 这是运算放大器设计的重要特征之一——在信号 作用下，电路的动作仅取决于能够容易被设计者改变 的外部元件，而不取决于运算放大器本身的细节特性。 Which 作关系代词用，用于限制性定语从句中， 专指事物而言。
with efficiency = efficiently
with skill = skillfully with difficulty=difficultly e.g: This experiment should be done with care.
这个实验应该仔细地做。
专业英语
7
三、数词 1. 分数的表示法 分子（用基数词表示）：one, two, three, … , ten
专业英语
3
(2) 作定语（后置定语） e.g1: There are batteries for mobile phone. 这是供手机用的电池。 e.g2: An electric switch is often on a wall near the door of a room. 开关常装在房间门旁的墙上。 (3) 作表语（置于系动词之后） e.g1: The supply currents specified in the data sheet are for static DC conditions only. 数据单上标明的电源电流只适用于静态直流条件。
专业英语
11
P1U2A
The Operational Amplifier
背景知识：运算放大器是一种常用的电子器件。具
有输入阻抗高、输出阻抗低、放大倍数大、性能稳 定的特点。在利用运算放大器设计电路时，由于其 放大倍数很大，电路的特性主要是由外部输入输出 网络的特性决定，与放大器本身的特性关系不大，
专业英语
16
P1U2A
The Operational Amplifier
[2] Not shown are other connections necessary to run
the Op-Amp such as its attachments to power supplies
and to ground potential.
E.g: This wire is four times longer than that one.
=This wire is four times as long as that one.
(2) by a factor of ―n‖ 与表示“增加”、“减少”等词 连用时应译为“n-1‖倍。
E.g: In this case, its gain will be increased by a factor of 5. 在这种情况下，其增益将提高4倍。
e.g1: Laboratory work is considered of great importance to students of engineering. 实验对工科学生来说及其重要。
专业英语
6
(2) with + 抽象n.=adv. with care =carefully with ease = easefully
专业英语
2
科技英语语法——词类
二、介词
1. 介词短语在句中的主要语法功能
(1) 作状语（句中位置灵活）
e.g1: In nature there are many substances.
自然界中有许多物质。 e.g2: Their channel resistances will be relatively low, on the order of 500 Ohms. 它们的沟道电阻相当低，大约为500欧姆。
专业英语
18
P1U2A
The Operational Amplifier
翻译示例：
One problem with electronic devices corresponding
to the…….At this point we will make no attempt to
1
翻译下面一段英文 A common method of analyzing an electrical network is mesh or loop analysis. The fundamental law that is applied in this method is Kirchhoff’s first law, which states that the algebraic sum of the voltage around a closed loop is 0, or, in any closed loop, the sum of the voltage rises must equal the sum of the voltage drop. Mesh analysis consists of assuming that currents—termed loop currents— flow in each loop of a network, algebraically summing the voltage drops around each loop, and setting each sum equal to 0.
5. What are the important laws of operational
amplifier?
专业英语
13
P1U2A
The Operational Amplifier
生词与短语：
operational amplifier 运算放大器
electronic device 电子器件
depend upon internal property 依赖于，取决于 内部特性
这个电压是加给放大器信号的100倍。（相当于在 倍数词后省略了as large as）
E.g2: The force provided by two parallel rubber bands is twice that provided by one rubber band. 两根平行的橡皮筋所提供的力为一根橡皮筋的两倍。
分母（用序数词表示）：first, second, third, …
注：当分子=1时，分母用单数形式； 当分子>1时，分母用复数形式。 e.g: 1/3 2/5 one third two fifths
专业英语
8
零点几的表示法：转化为分数表示 E.g: 0.3 → 3/10 three tenths 若是数值带有单位，在分数表示后+―of a(an) +单位 名称”
parameter n. 参数
vary v. 不同于
component n.
inner working
专业英语
元件，成分
内部工作原理
14
transistor n. 晶体管
P1U2A
The Operational Amplifier
beyond the scope of… 超出…的范围 a variety of 多种的，各种的 filter circuit 滤波电路 with respect to 相对于 differential device 差分装置 KVL Kirchhoff Voltage Law 基尔霍夫电压定律 gain factor 增益因子 denominator n. 分母 fraction n. 分数 numerator n. 分子 independent of 与…无关
回顾与复习——Electrical Networks 单词及短语中英文对译： 电网络 无源网络 有源网络 回路电流 电压降 等效电路 微分方程 回路分析法
专业英语
rate of change of current voltage/current source in series algebraic sum amplifying device current flow differentiation with respect to time second-order
E.g: 0.3g 2. 特殊表示法 倍数
分数 百分数
专业英语
three tenths of a gram the +n.+后置定语
+ that +后置定语 what – 从句
9
E.g1: The voltage is 100 times the signal applied to the amplifier.
因此可以方便地构成各种电子线路。
专业英语
12
P1U2A
The Operationaቤተ መጻሕፍቲ ባይዱ Amplifier
阅读文章回答问题： 1. What problem is usually concerned with electrical
devices as amplifiers?
2. What are the advantages of operational amplifier? 3. How many characteristics are of operational amplifier? And what are they? 4. What is one of the key features of Op-Amp design?