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1、 外文原文

A: Fundamentals of Single-chip Microcomputer

Th e si ng le -c hi p m ic ro co mp ut er i s t he c ul mi na ti on of both t h e de ve lo

pm en t of the dig it al com pu te r an d th e in te gr at ed c i rc ui t arg ua bl y t h e tow m

os t s ig ni f ic an t i nv en ti on s o f t he 20th c e nt ur y [1].

Th es e tow type s of arch it ec tu re are foun d in sin g le -ch i p m i cr oc om pu te r.

Som e empl oy the spli t prog ra m/da ta me mo ry of the H a rv ar d ar ch it ect u re , sh

ow n in Fig.3-5A -1, oth ers fo ll ow the p h il os op hy , wi del y ada pt ed for gen er al -p

ur po se com pu te rs and m i cr op ro ce ss o r s, o f ma ki ng no log i ca l di st in ct ion

be tw ee n p r og ra m and dat a me mo ry as in the Pr in ce to n arch ite c tu re , show n i

n Fig.3-5A-2.

In gen er al ter ms a sin gl e -chi p mic ro co mp ut er i s

c h ar ac te ri ze d b y t h e i nc or po ra ti on o f a ll t he un it s of a co mp uter i n to

a sin gl e d ev i ce , as sho wn inFi g3-5A -3. Fig.3-5A-1 A Harvard type

Fig.3-5A-2. A conventional Princeton computer

Fig3-5A-3. Principal features of a microcomputer

Read only memory (ROM.R OM is usua ll y for the pe rm an ent,

n o n-vo la ti le stor a ge of an app lic a ti on s pr og ra m .M an y

m i cr oc om pu te rs and m are inte nd e d for high -v ol um e ap pl ic at ions a n d

he nc e t h e eco n om ic al man uf act u re of th e de vic e s re qu ir es t h at t he cont en t

s o f t he prog ra m me m or y be co mm it t ed perm a ne ntly d u ri ng the man ufa c tu re

of ch ip s .Cl ea rl y, thi s im pl ie s a r i go ro us app ro ach to ROM cod e deve l op me

nt sin ce cha ng es can not b e mad e afte r manu f a c tu re .Th is dev e lo pm en t proc

ess may invo lv e e m ul at io n us in g aso ph is ti ca te d de ve lo pm en t sy ste m wit h a

h a rd wa re emu la tio n cap ab il it y as w el l as the use o f po we rf ul s o ft wa re too ls. So me man uf act u re rs pro vi de add it io na l RO M opt i on s by i n cl ud in g in

their ra n ge dev ic es wit h (or int en de d fo r use wit h u s er pro gr am ma ble me mo ry.

Th e sim p le st of th es e is usu al ly d e vi ce whi ch can op er at e in a micro p ro ce ss

or mod e by usi ng som e o f the inp ut /outp u t li ne s as an ad dr es s an d da ta b us for

a c ce ss in g ex te rna l mem or y. Thi s t y pe of de vi ce can beh av e

f u nc ti on al ly as th e sing le chip mi cr oc om pu te r from whi ch it is d e ri ve d al

be it wit h re st ri ct ed I/O and a mod if ied ex te rn al c i rc ui t. The use of thes e d ev ic

es is com mo n eve n in prod uc ti on c i rc ui ts wher e t he vo lu me does no t j us ti f y t

h e d ev el o pm en t c osts o f c us to m o n -ch i p R OM [2];t he re c a n s ti ll bea s ig

nif i ca nt saving i n I /O and o th er c h ip s com pa re d to a conv en ti on al mi c ro pr oc

es sor b a se d ci rc ui t. Mor e ex ac t re pl ace m en t fo r RO M dev i ce s ca n be o b ta

in ed in th e fo rm of va ri an ts w it h 'p ig gy -b ack '

E P RO M(Er as ab le pro gr am ma bl e ROM s oc ke ts or dev ic e s with EPROM i

n st ea d o f RO M 。 T h es e d ev ic es a re na tu ra ll y mo re ex p en si ve th an e q ui

va le nt ROM dev ic e, but do pro v id e co mp le te cir cu it

e q ui va le nt s. EPRO M bas ed devi ce s ar e also extr em el y att ra ct ive

f o r low -vo lu me app li ca ti on s where they prov id e the adv an ta ges o f a sing

le -c hi p de vi ce , in term s of on-c hi p I/O, etc. ,wi th the c o nv en ie nc e of fle xi bl e

us er prog r am ma bi li ty.

Random access memory (RAM.R AM is for the stor ag e of work ing

v a ri ab le s and dat a use d dur in g pro gr am exe cu ti on. The siz e of t h is mem

or y va rie s wit h de vi ce typ e bu t it has the sam e

c h ar ac te ri st ic wid th (4, 8, 16 bits et c. as the p r oc es so r ,Spe cia l fun ct io n regi st e rs , such as stac k poi nt er or t i me r re gi

st er are oft en log ic all y inc or po ra te d in to the RAM a r ea. It is also com mo n in

Har ard type micr oc om pu t er s to trea t t h e RAM are a as a coll ec ti on of re gi st er ;

it is un ne ce ss ar y to m a ke dis ti nc ti on bet we en RAM and pr oc es so r regi ste r as

is don e i n the case of a mi cr op ro ce ss or sys te m sinc e RAM an d regi st er s a r e no

t us ua ll y ph ys ic al ly sep ara t ed in a mi cr oco m pu te r .

Central processing unit (CPU.T h e CPU is much li ke that

o f any micr op ro ce s so r. Man y app li c at io ns of mic ro c om pu te rs and m i cr

oc on tr ol le rs inv ol ve the hand l in g of bina ry -c o de d deci m al (B CD dat a (for nu

me ri ca l disp lay s , for exa mp le ,he nc e it is c o mm on to fin d t ha t the CPU is w ell

adap te d to han dl i ng thi s type o f data .It is als o comm on to find good faci li ti es fo r

tes ti ng , s e tt in g a nd re se tt i ng in di vi du al bi t s o f m em or y or I/O si nc e m any

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电气工程及其自动化专业_外文文献_英文文献_外文翻译_plc方面

电气工程及其自动化专业_外文文献_英文文献_外文翻译_plc方面

1、 外文原文

A: Fundamentals of Single-chip Microcomputer

The single-chip microcomputer is the culmination of both

the development of the digital computer and the integrated

circuit arguably the tow most significant inventions of the 20th

century [1].

These tow types of architecture are found in single-chip

microcomputer. Some employ the split program/data memory of the

Harvard architecture, shown in Fig.3-5A-1, others follow the

philosophy, widely adapted for general-purpose computers and

microprocessors, of making no logical distinction between

program and data memory as in the Princeton architecture, shown

in Fig.3-5A-2.

In general terms a single-chip microcomputer is

characterized by the incorporation of all the units of a computer

into a single device, as shown in Fig3-5A-3.

Fig.3-5A-1 A Harvard type

3-电气工程及其自动化专业_外文文献_英文文献_外文翻译_plc方面

3-电气工程及其自动化专业_外文文献_英文文献_外文翻译_plc方面

1、 外文原文

A: Fundamentals of Single-chip Microcomputer

The single-chip microcomputer is the culmination of both

the development of the digital computer and the integrated circuit

arguably the tow most significant inventions of the 20th century

[1].

These tow types of architecture are found in single-chip

microcomputer. Some employ the split program/data memory of the

Harvard architecture, shown in Fig.3-5A-1, others follow the

philosophy, widely adapted for general-purpose computers and

microprocessors, of making no logical distinction between program

and data memory as in the Princeton architecture, shown in

Fig.3-5A-2.

In general terms a single-chip microcomputer is

characterized by the incorporation of all the units of a computer

into a single device, as shown in Fig3-5A-3.

Fig.3-5A-1 A Harvard type

电气工程及其自动化专业微机母线保护原理毕业论文外文文献翻译及原文

电气工程及其自动化专业微机母线保护原理毕业论文外文文献翻译及原文

毕 业 设 计（论文）

外 文 文 献 翻 译

文献、资料中文题目：微机母线保护原理

文献、资料英文题目：

文献、资料来源：

文献、资料发表（出版）日期：

院 （部）：

专 业： 电气工程及其自动化（电力）专业

班 级：

姓 名：

学 号：

指导教师：

翻译日期： 2017.02.14

毕业设计（论文）

外文翻译

题 目 石泉水电厂电气

一次及母线保护设计

THE BUSBAR PROTECTION PRINCIPLE

Busbar protection is when a failure occurs when bus, quickly cut off the straps of

the principal protection, in accordance with a principle protection bus, bus protection

can be divided into several types. As technology continues to evolve as the personal

computer bus protection has also been a number of applications, and its increasing

variety, but the application of the principle of whether or not they have too many

changes, mostly or entirely with current differential theory constitutes a busbar

differential protection. Micro-machines which are characterized by bus protection for

电气工程及其自动化专业逆变器大学毕业论文英文文献翻译及原文

电气工程及其自动化专业逆变器大学毕业论文英文文献翻译及原文

毕 业 设 计（论文）

外 文 文 献 翻 译

文献、资料中文题目：逆变器-基于DSP的单相恒压逆变器设计

文献、资料英文题目：

文献、资料来源：

文献、资料发表（出版）日期：

院 （部）：

专 业： 电气工程及其自动化

班 级：

姓 名：

学 号：

指导教师：

翻译日期： 2017.02.14

毕 业 设 计（论文）

外 文 文 献 翻 译

题 目：基于DSP的单相恒压逆

变器设计

教 学 院：

电气与电子信息工程学院

专业名称： 电气工程及其自动化

逆变器

SHI TingNa, WANG Jian

1引言

逆变器是一种电动装置，转换成直流电（DC），交流电流转换的AC（交流）可以在任何所需的电压和频率使用适当的变压器，开关，控制circuits.Solid状态逆

变器有没有移动部件，用于广泛的应用范围从小型计算机开关电源，高压大型电力公司电力，运输散装直接电流应用。逆变器通常用于提供交流电源，直流电源，如太阳能电池板或电池。

逆变器的主要有两种类型。修改后的正弦波逆变器的输出是类似方波输出，输出变为零伏前一段时间切换积极或消极的除外。它是简单，成本低，是大多数电子设备兼容，除敏感或专用设备，例如某些激光打印机。一个纯正弦波逆变器产生一个近乎完美的正弦波输出（<3％的总谐波失真），本质上是相同的公用事业提供电网。因此，它是与所有的交流电的电子设备兼容。这是在电网领带逆变器使用的类型。它的设计更复杂，成本5或10倍以上每单位功率电逆变器是一个高功率的电子振荡器。它这样命名，因为早期的机械AC到DC转换器工作在反向，因而被“倒”，将直流电转换AC.The变频器执行的整流器对面功能。

2应用

2.1直流电源利用率

逆变器从交流电力来源，如电池，太阳能电池板，燃料电池的直流电转换成。电力，可以在任何所需的电压，特别是它可以操作交流电源操作而设计的设备，或纠正，以产生任何所需的voltage Grid领带逆变器的直流送入分销网络的能量，因为它们产生电流交替使用相同的波形和频率分配制度提供。他们还可以关掉一个blackout.Micro逆变器的情况下自动转换成交流电电网的电流直接从当前个别太阳能电池板。默认情况下，他们是格领带设计。