数字电路英文PPT课件 •“alwaysatwork,•alwaysinadvance,•alwaysaccumulating”第1页/共85页 •Passion(激情)Work(工作)Focus(专注)• Good(精通)Push(鞭策)•Service(服务)Ideas(点子)Persist(坚持)第2页/共85页 CHAPTER1INTRODUCTORYDIGITAL CONCEPTS 第3页/共85页 “MoonWalk,InJulyof1969.240,000...
An analog quantity, having continuous values, takes on all the infinite values in between, say, [a, b]. * What’ s Digital Quantity? A digital quantity has a set of discrete values. * Analog Example A public address system, used to amplify sound so that it can be heard by large ...
Floating-pointnumber:Anumber representationbasedonscientificnotationinwhichthenumberconsistsofanexponentandamantissa.Graycode:Anunweighteddigitalcodecharacterizedbyasinglebitchangebetweenadjacentcodenumberinasequence.Hexadecimal:Describesanumber systemwithabaseof16.Integer:Awholenumber.Leastsignificantbit...
These states are represented by two different voltage levels: A HIGH and A LOW.11.第19页/共85页 The two states can also be represented by current levels, open and closed switches, or lamps turned on and off. In digital systems, co 9、mbinations of the two states, called codes, are ...
主干:digital circuits have made it possible to construct digital systems that引导的定语从句修饰digital systems which引导的定语从句修饰functions and tasks 2021/3/17 * 0.1.2 词汇 Vocabularies or words 普通词汇 Common vocabularies 0.1 科技英语的特点 features 专业词汇 Speciality vocabularies 大部分是名词、...
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EKT 121 / 4 DIGITAL ELECTRONICS I Chapter 3: Sequential Logic Circuits “Combinational” vs “Sequential” Combinational – outputs depend only on the inputs. Do not have memory. Cannot store state. Sequential – outputs depend on inputs and past behavior. Require use of storage elements. Conte...
A transistor is a device that conducts a variable amount of electricity through it, depending on how much electricity is input to it. In other words, it is a digital switch. However, unlike the vacuum tube , it is solid state . 晶体管是一种依据输入电量大小而传导可变电量的器件。换言之,...
为避免功率损耗过大,总在开关状态——电力电子技术的一个重要特征Toavoidexcessivepowerloss,alwaysintheon-offstate---isanimportantfeatureofpowerelectronicstechnology电子技术ElectronicTechnology既可放大,也可开关YoucaneitherzoominoryoucanturnitonandoffTherelationshipbetweenpowerelectronictechnologyandelectronictechnology电力...
Part1Electronics Unit1TheDevelopmentofElectronicsUnit2Resistor,CapacitorandInductorUnit3CircuitsUnit4AmplifierUnit6PulseDigitalCircuitEXERCISE 第1页/共64页 Unit1TheDevelopmentofElectronics 电子学的发展 第2页/共64页 经典物理学的一个分支 计算机 computer 电学 electricity 基于电学中的电磁学与电工学发展起来 电子...