电子技术专业英语教程课件
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电子信息专业英语课件
02
Understand email etiquette, master common expressions and sentence structures in English emails, and improve the writing quality of English emails.
03
The integration of traditional electronics and information technology: with the continuous development of technology, more and more traditional electronic products need to be required with information technology to improve their competitiveness
01
Overview of Electronic Information Major
Chapter
including embedded software, mobile application development, web development, etc
Software development
Master the translation skills of English technical documents, including vocabulary selection, sentence structure conversion, grammar processing, etc.
04
Electronic Information Professional English Listening and Speaking Training
数字电子技术基础英文版课件
Slide 16
Logic Levels
Binary values are also represented by voltage levels
They can also be called LOW and HIGH, where LOW = 0 and HIGH = 1 In positive logic rules:
Slide 14
1-2 Binary Digits, Logic Levels, and Digital Waveforms 二进制数，逻辑电平和数字波形
Slide 15
Binary Digits
• The conventional numbering system uses ten digits: 0,1,2,3,4,5,6,7,8, and 9. • The binary numbering system uses just two digits: 0 and 1. • Each of the two digits is called bit, which is a contraction of the words binary digit. • Groups of bits (combinations of 1s and 0s)is called code.
1 f T
Slide 21
An important characteristic of a digital waveform is its duty cycle. The duty cycle（占空比） of a binary waveform is defined as:
tw Duty cycle 100% T
Slide 17
Slide 18
Logic Levels
Binary values are also represented by voltage levels
They can also be called LOW and HIGH, where LOW = 0 and HIGH = 1 In positive logic rules:
Slide 14
1-2 Binary Digits, Logic Levels, and Digital Waveforms 二进制数，逻辑电平和数字波形
Slide 15
Binary Digits
• The conventional numbering system uses ten digits: 0,1,2,3,4,5,6,7,8, and 9. • The binary numbering system uses just two digits: 0 and 1. • Each of the two digits is called bit, which is a contraction of the words binary digit. • Groups of bits (combinations of 1s and 0s)is called code.
1 f T
Slide 21
An important characteristic of a digital waveform is its duty cycle. The duty cycle（占空比） of a binary waveform is defined as:
tw Duty cycle 100% T
Slide 17
Slide 18
电子信息专业英语(第二版)课件：Laser
Lasers
When real lasers finally arrived—in 1960—writers and moviemakers immediately leaped upon their destructive power and substituted the word “laser” for ray gun. A laser was one of the leading pieces of machinery in the James Bond techno-spy thriller Goldfinger in the early 1960s. As you may recall, Bond (Sean Connery played the role at the time) was tied down to a metal table by the villain Goldfinger, his legs spread apart, while a laser made its way directly toward his genitals. The laser’s bright, red, thick beam easily cut a swath through the table. It obviously had the power to tear him asunder, lengthwise.
Lasers
· Lasers produce light of only one color. Or, to say it in a more technical way, the light is monochromatic. Ordinary light combines all the colors of visible light (i.e., the spectrum). Mixed together, they come out white. Laser beams have been produced in every color of the rainbow (red is the most common laser color), as well as in many kinds of invisible light, but each laser can emit one color and one color only. There are such things as tunable lasers, which can be adjusted to produce several different colors, but even they can emit only one color at a time.[2] A few lasers can emit several monochromatic wavelengths at once—but not a continuous spectrum containing all the colors of visible light as a light bulb does. And then there are many lasers that project invisible light, such as infrared and ultraviolet light.
微电子专业英语课件
Principles and Design of Integrated Circuits
Integrated Circuit (IC) Basics
An IC is a miniaturized electronic circuit consisting of transistors, resistors, capacitors, and other components integrated onto a single silicon chip.
of microelectronics.
02
To develop students' ability to read, write, and communicate effectively in English within the context of
microelectronics.
03
To prepare students for future careers in the global microelectronics industry, where English is the lingua
Coverage of analog and digital circuit design principles, including circuit analysis techniques and design methodologies.
Course content and structure
Students should be able to communicate effectively in English during oral presentations, seminars, and discussions related to microelectronics.
电子信息工程专业英语课件4
• 开关电源中的功率器件工作在全开和截断状态。这样， 要么在大电流流经功率器件时，导通电压很低；要么 在大电压时，没有电流通过器件。
2019年1月20日
《电子信息工程专业英语教程》
20
Cutoff in use
• • • • • • current-gain cutoff 电流增益截止 grid-current cutoff 栅流截止 grid-voltage cutoff 栅压截止
2019年1月20日 《电子信息工程专业英语教程》 11
Topologies
• A topology is … • Each topology has its own merits within certain applications. • Some of the factors which determine the suitability of a particular topology to a certain application …
• Switching regulator
– operates the power devices in the full-on and cutoff states – efficiencies of between 70 to 90 percent – an attractive choice for output powers greater than 10 watts or where multiple outputs are desired
2019年1月20日 《电子信息工程专业英语教程》 16
Load in text
• Historically, the linear regulator was the primary method of creating a regulated output voltage. It operates by reducing a higher input voltage down to the lower output voltage by linearly controlling the conductivity of a series pass power device in response to changes in its load. This results in a large voltage being placed across the pass unit with the load current flowing through it. • 在历史上，线性稳压器曾是产生稳压输出电压的主要 方法。通过对级联功率通过器件导电性线性控制以响 应负载变化，线性稳压器将输入高电压降为输出低电 压。这种方法导致在负载电流流经的通过单元两端出 现一个大电压。
2019年1月20日
《电子信息工程专业英语教程》
20
Cutoff in use
• • • • • • current-gain cutoff 电流增益截止 grid-current cutoff 栅流截止 grid-voltage cutoff 栅压截止
2019年1月20日 《电子信息工程专业英语教程》 11
Topologies
• A topology is … • Each topology has its own merits within certain applications. • Some of the factors which determine the suitability of a particular topology to a certain application …
• Switching regulator
– operates the power devices in the full-on and cutoff states – efficiencies of between 70 to 90 percent – an attractive choice for output powers greater than 10 watts or where multiple outputs are desired
2019年1月20日 《电子信息工程专业英语教程》 16
Load in text
• Historically, the linear regulator was the primary method of creating a regulated output voltage. It operates by reducing a higher input voltage down to the lower output voltage by linearly controlling the conductivity of a series pass power device in response to changes in its load. This results in a large voltage being placed across the pass unit with the load current flowing through it. • 在历史上，线性稳压器曾是产生稳压输出电压的主要 方法。通过对级联功率通过器件导电性线性控制以响 应负载变化，线性稳压器将输入高电压降为输出低电 压。这种方法导致在负载电流流经的通过单元两端出 现一个大电压。
《电子与通信工程专业英语》课件第11章
Processing the signal using a filter circuit can remove or at least reduce the unwanted part of the signal. Increasingly nowadays, the filtering of signals to improve signal quality or to extract important information is done by DSP techniques rather than by analog electronics [2].
This generates a digital output as a stream of binary numbers whose values represent the electrical voltage input to the device at each sampling instant[1].
Unit 11 Introduction to Digital Signal Processing
NEW WORDS AND PHRASES NOTES EXERCISES 参考译文 EXTENSIVE TEXT
1．What is DSP? DSP, or Digital Signal Processing, as the term suggests, is the processing or signals by digital means. A signal in this context can mean a number of different things. Historically the origins of signal processing are in electrical engineering, and a signal here means an electrical signal carried by a wire or telephone line, or perhaps by a radio wave. More generally, however, a signal is a stream of information representing anything from stock prices to data from a remote-sensing satellite.