电子教案-电子信息类专业英语(第2版_冉利波)课件PPT-第十六课-电子课件
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《电子信息专业英语》电子教案详解
Chapter 1 Introduction to Electronic Technology
7
1.1. Lesson 1 Development of Electronics 电子技术发展史
Notes to the Text
[9] Radar measures the distance and direction to an object：雷达测量一个物体的距离和方向. [10] Bell Laboratories：美国贝尔实验室，创建于1925年，负责改进电信设备和从事与军事有关 的研究工作， 有大量技术发明和科学发现，如有声电影系统、数字计算机、晶体管等. [11] Nobel Prize：诺贝尔奖，是以瑞典著名化学家、炸药发明人诺贝尔的遗产作为基金创立的 。授予世界各国在物理、化学、生理或医学、文学、和平及经济奖领域对人类作出重大贡献的 学者。 [12] it is tiny by comparison：相比之下，它（晶体管）很小。 [13] Texas Instrument：美国德州仪器公司，简称TI，是全球领先的数字信号处理与模拟技术的 半导体集成电路公司，总部位于美国得克萨斯州。
[15] hundreds of thousands of：几十万，成千上万的 Chapter 1 Introduction to Electronic Technology
8
1.2.
Lesson 2 Singapore Polytechnic 新加坡理工学院
associate commit vision hectare equip state-of-the-art facility hall workshop supportive collaborate strategic partnership adj. 副的；联合的； vi. 交往 vt. 致力于，承诺，从事 n. 视力；幻象； vt. 想象 n. 公顷 vt. 装备，配备 adj. 最先进的；最高水准的 n. 设备，设施；灵巧；容易 n. 礼堂；大厅 n. 车间；工场；研讨会 adj. 支持的；支援的；赞助的 vi. 合作 adj. 战略上的，战略的 n. 合伙企业；合伙；合作关系
电子信息专业英语(第二版)(李白萍)章 (16)
Unit 16 3rd Generation Mobile Communications · Outstanding Spectrum Efficiency increases
capacity. As already stated, with asymmetric traffic applications, TD-SCDMA utilizes the available spectrum more efficiently than other 3G standards since it employs only one band for both uplink and downlink traffic (TDD unpaired band) instead of two separate bands for uplink and downlink (FDD paired bands).［4］ Moreover, highly effective technologies like smart antennas, joint detection and dynamic channel allocation -which are integral features of the TDSCDMA radio standard-contribute to minimize intra-cell interference (typical of every CDMA technology) and inter-cell interference leading to an outstanding spectrum efficiency (3-5 times GSM). This is especially helpful in densely populated urban areas, which are
电子信息专业英语整套课件完整版电子教案最全ppt整本书课件全套教学教程(最新)
二极管)去检测一个二极管的导通方向。灯可以用来测试一个整流二 极管，但是不能用来测试一个信号二极管，因为流过灯的大电流会损 坏二极管!
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第三课 晶体管及其基本电路
现在，晶体管是电子技术中最重要的器件。它们不仅作为独立元件， 而且在集成电路微薄的硅片上可包含成千上万个晶体管
晶体管由3层半导体材料构成:一种类型的薄层在中间，两边分别是另 两种类型。可以有两种排列方式:N型在中间，P型在两边(PNP); P型在 中间，N型在两边(NPN )。中间层称为基极，两边外层分别称为发射 极和集电极(如图1-17所示)
电子信息是当今国内外发展最迅速、技术更新最快的工程领域之一， 电子信息专业英语对学习电子信息新知识和新技术起着非常重要的作 用。
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前言
本书是一本突出高等教育实用特点的电子信息专业英语教材，内容涉 及电工电子基础、仪器仪表使用、传感器技术、通信技术等方面，基 本覆盖了现代电子信息的各个领域，同时收录了一些电子信息新技术 领域发展前沿方面的文章(如太阳能、电子纸、蓝牙技术和3G等)。课 文内容丰富，题材广泛，通俗易懂，选择的文章实用性强并尽量保证 学生能利用已有专业知识理解课文内容。每课课后有词汇、注释、练 习及阅读等。在本书书后附有课文参考译文及部分练习参考答案，供 读者参考对照。另外，书后还附有电子专业词汇和科技英语阅读与翻 译技巧相关知识，供相关专业读者参考。
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前言
本书由王菲、施亚齐担任主编，并编写了第四、第五篇，董小琼编写 了第一篇，王俊清编写了第二篇，邹淑云编写了第三篇。
由于编者水平有限，时间仓促，书中难免有纰漏和不足之处，请尊敬 的教师、同学和广大学者批评指正。
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目录
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第三课 晶体管及其基本电路
现在，晶体管是电子技术中最重要的器件。它们不仅作为独立元件， 而且在集成电路微薄的硅片上可包含成千上万个晶体管
晶体管由3层半导体材料构成:一种类型的薄层在中间，两边分别是另 两种类型。可以有两种排列方式:N型在中间，P型在两边(PNP); P型在 中间，N型在两边(NPN )。中间层称为基极，两边外层分别称为发射 极和集电极(如图1-17所示)
电子信息是当今国内外发展最迅速、技术更新最快的工程领域之一， 电子信息专业英语对学习电子信息新知识和新技术起着非常重要的作 用。
下一页 返回
前言
本书是一本突出高等教育实用特点的电子信息专业英语教材，内容涉 及电工电子基础、仪器仪表使用、传感器技术、通信技术等方面，基 本覆盖了现代电子信息的各个领域，同时收录了一些电子信息新技术 领域发展前沿方面的文章(如太阳能、电子纸、蓝牙技术和3G等)。课 文内容丰富，题材广泛，通俗易懂，选择的文章实用性强并尽量保证 学生能利用已有专业知识理解课文内容。每课课后有词汇、注释、练 习及阅读等。在本书书后附有课文参考译文及部分练习参考答案，供 读者参考对照。另外，书后还附有电子专业词汇和科技英语阅读与翻 译技巧相关知识，供相关专业读者参考。
上一页 下一页 返回
前言
本书由王菲、施亚齐担任主编，并编写了第四、第五篇，董小琼编写 了第一篇，王俊清编写了第二篇，邹淑云编写了第三篇。
由于编者水平有限，时间仓促，书中难免有纰漏和不足之处，请尊敬 的教师、同学和广大学者批评指正。
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《电子信息专业英语》电子教案ppt课件
2
4.1. Lesson 10 Multimeter 万用表
New Words and Technical Terms
multimeter
n. 万用表
meter
n. 仪表；米； v. 用表计量
measuring
n. 测量adj. 测量用的
needle
n. 针；指针； vt. 用针缝
scale
n. 刻度；天平；规模
Chapter 4 Electronic Instrument & Measurement
4
4.1. Lesson 10 Multimeter 万用表
Figures in the Text
Figure 4-3 Measure voltage Figure 4-4 Measure voltage in a light sensor circuit
[5] The multimeter is connected in parallel between the two points where the measurement is to be made：where the measurement is to be made从句修饰the two points。句子可以翻译为：万 用表并行连接到要测量的两点之间。
[3] The central knob has fewer positions and all you need to do is to switch it to the quantity you want to measure：all you need to do主语从句。you want to measure定语从句修饰quantity。句 子可以翻译为：中央旋钮有几个位置，所有你需要做的是，切换旋钮到你想要测量值）的位置 。 [4] The four resistors are connected in series：四个电阻串联连接。
《电子信息专业英语》电子教案2
Chapter 2 Electronic Parts
2
2.1. Lesson 4 Electronic Component 电子元件
New Words and Technical Terms
resistor terminal electric current proportional represent unit symbol resistance color band numerical specify multiplier tolerance gap violet gold signify n. 电阻（器） 电阻（ n. 末端；终点 adj. 末端的 末端； n. 电流 adj. 比例的，成比例的 比例的， vt. 表示；表现；代表 表示；表现； n. 单位；单元；部件 单位；单元； n. 符号；象征；标志 符号；象征； n. 阻力；电阻 阻力； 色带， 色带，色环 adj. 数字的；数值的 数字的； vt. 指定；规定 指定； n. 乘数；乘法器 乘数； n. 公差；容忍；宽容 公差；容忍； n. 缺口；间隙 缺口； adj. 紫色的；n. 紫罗兰 紫色的； n. 金，黄金；金色；adj. 金的 黄金；金色； vt. 表示；意味；预示 表示；意味； lie capacitor consist conductor separated dielectric charge electrical field block direct current filter smooth resonant tune frequency farad vi. 说谎；位于；躺；展现 说谎；位于； n. 电容（器） 电容（ vi. 组成 n. 导体；售票员；管理人 导体；售票员； adj. 分开的 n. 电介质 n. 电荷；费用 v. 充电；控告 电荷； 充电； n. 电场 vt. 阻塞；阻止 n. 块；障碍 阻塞； 直流电（ 直流电（流）
第1章电子信息类专业英语(李白萍).ppt
Information source
Transmitter (modulator)
Transmission medium C ommunication system
R eceiver (demodulator)
Destination (a)
In fo rm at i o n s o u rce
E l ect ri cal t ran s m i t er
digital information signal. In the system shown in Figure1.1(b) analog modulation involves the variation of the light emitted from the optical source in a continuous manner. With digital modulation, however, discrete changes in the light intensity are obtained (i.e. on-off pulses). Although often simpler to implement, analog modulation with an optical fiber communication system is less efficient, requiring a far higher signal to noise ratio at the receiver than digital modulation.
D es t i n at i o n (b)
Figure 1.1 (a) The general communication system; (b) The optical fiber communication system
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.
电子信息类专业英语(第二版)(李白萍)
10.相反，TD-SCDMA根据数据负荷在单一而非对的载频内调整上下行的（时隙）比率，因此能够有效的利用频谱，并提供1.2kbps-2Mbps数据传输频率。
On the contrary,TS-SCDMA adapts the uplink/downlink radio according ro the data load within a single unpaired frequency thus utilizing the spectrum more efficiently,and provides dara rates ranging form 12kbps to 2Mbps.
6.作为一种以同步模式运行的结合CDMA自适应技术的高级TDMA、TDD系统，TD-SCDMA具有对称电路交换服务业务（如语音和视频）和非对称组交换服务业务（如手机上网）。
Designed as an advanced TDMA,TDD system with an adaptive CDMA component operating in synchronous mode,TD-SCDMA masters both symmetric circuits switched services (such as speech or video)as well as asymmetric packet switched services(such mobile internet access).
The signal-processing block at the transmitter conditions the source for more efficient transmission.
5.此外信号处理器还可以给数码子加入奇偶校验位，即提供信道编码 ，使的接收机的信号处理器可以进行误码检测和纠错，以减少或消除由信道噪声所引起的误码。
On the contrary,TS-SCDMA adapts the uplink/downlink radio according ro the data load within a single unpaired frequency thus utilizing the spectrum more efficiently,and provides dara rates ranging form 12kbps to 2Mbps.
6.作为一种以同步模式运行的结合CDMA自适应技术的高级TDMA、TDD系统，TD-SCDMA具有对称电路交换服务业务（如语音和视频）和非对称组交换服务业务（如手机上网）。
Designed as an advanced TDMA,TDD system with an adaptive CDMA component operating in synchronous mode,TD-SCDMA masters both symmetric circuits switched services (such as speech or video)as well as asymmetric packet switched services(such mobile internet access).
The signal-processing block at the transmitter conditions the source for more efficient transmission.
5.此外信号处理器还可以给数码子加入奇偶校验位，即提供信道编码 ，使的接收机的信号处理器可以进行误码检测和纠错，以减少或消除由信道噪声所引起的误码。
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翻译br：e（a1k）d功o率w二n极v管ol，ta功g率e三. 极管和功率场效应晶体管
功率二极管，功率三极管和功率场效应晶体管工作原理相似，它们的功耗低， 但能够携带大量的电流，通常在截止状态，能够支持更大的反向偏置电压。功率器件 的结构通常是改变以适应更高的电流密度，更高的功耗，和/或更高的反向击穿电压。
16 Power Electronics
• 学习重点： • （1）掌握有关电力电子及其相关器件的基
本单词、词组和缩略语的基本含义及用法 • （2）培养阅读翻译有关电子及其相关器件
的科技文献和产品说明书的能力，主要是 英译汉的能力
Passage A
Power Electronics
1.生词
• commutation [ˌkɒmju'teɪʃn] n. 转换 • counterpart ['kaʊntəpɑːt] n. 对应物；相似之物；副
翻译：在正向偏压下，当没有加载门极电流时（也就是在未触发的状态），器件存在 漏电流。但是，如果同时施加一个选通脉冲，晶闸管导通，正向偏置电阻较小，在正 向导通时，允许非常大（几安培）的电流流入。如果超过正向击穿电压，晶闸管仍然 导通，但这是不可取的，这时该器件不能用于控制传导。
翻译：电力电子系统的性能和经济性都是由可用的器件来确定的，现今主要是半 导体器件。这些器件可用作为开关，或作为放大器。一个理想的开关仅是打开或 关闭，所以不消耗任何功率。半导体器件作为开关可以接近于这个理想特性，所 以大多数电力电子应用依赖于开关器件的开启和关闭，从而使系统效率很高、能 耗低。
• By contrast, in the case of the amplifier, the current through the device varies continuously according to a controlled input. The voltage and current at the device terminals follow a load line, and the power dissipation inside the device is large compared with the power delivered to the load.
• In the forward biased mode, with no gate current present (i.e. in the untriggered state), the device exhibits a leakage current. If a gating pulse is applied at the same time however, the thyristor fires and the forward resistance of the device fall to a very low value, allowing very large (several amperes) currents to flow in the forward conducting mode. If the forward breakover voltage (Vfbo) is exceeded, thyristors can also be made to fire, but this is not desirable as the device is not then being used to CONTROL conduction.
2. 课文翻译讲解
• Power electronics is power conversion and control from one of power (energy) source to a desired form by using new technologies such as power transistors, IGBTs (Insulated Gate Bipolar Transistors), and microprocessors. The basic functions of power electronics include the use of electronics to control and transform electric energy in terms of voltage, current, frequency, and waveform,
翻译：电力电子是对电（能）源进行转换和控制的技术，它是使用诸如功率晶体管， IGBT（绝缘栅双极型晶体管）和微处理器等新技术来实现的。电力电子的基本功能是 根据电压、电流、频率、波型、
• and type (ac or dc) needed by today’s machines, motors, and electronic equipment, and also include the use of electronic control for conversion to other forms of energy such as solar energy, wind energy, electromagnetic energy, actuators, and highfrequency heating. The difference of the power electronics and the classical electronics is that the electrical currents and voltages are used to carry information with classical electronics, whereas with power electronics, they carry power.
翻译： （2）晶闸管 晶闸管，也称为可控硅整流器（SCR），是一个四层三结的PNPN器件，它有三个 极：阳极、阴极和门极，晶闸管的符号如图16-A1所示，图16-A2所示为晶闸管的典 型特性曲线。在反向偏置区，其特性相似于是一个二极管。所有的电流，除很小的 漏电流外，都被阻断（反向阻断区），直到反向击穿区。
• (2) Thyristor
• The thyristor, also called a silicon-controlled rectifier (SCR), is basically a four-layer threejunction pnpn device. It has three terminals: anode, cathode, and gate，the symbol of thyristor is shown in figure 16-A1 and the figure 16-A2 shows a typical characteristic curve of a thyristor. In the reverse biased region it behaves in a similar way to a diode. All current, apart from a small leakage current is blocked (reverse blocking region) until the reverse breakdown region is reached.
现今，功率半导体器件几乎都是基于硅材料的，分类如下：
• (1) Power diode, Power transistor and Power MOSFET
• The power diode, power transistor and power MOSFET operate on similar principles to their lowpower counterparts, but are able to carry a larger amount of current and are typically able to support a larger reverse-bias voltage in the off-state. The structures of the power devices are often changed in order to accommodate the higher current density, higher power dissipation, and/or higher reverse
本 • conv dissipate ['dɪsɪpeɪt] v. 耗散；浪费
• induction [ɪn'dʌkʃn] n. 感应 • metric ['metrɪk] n. 标准；度量 • thyristor [ θai'ristə ] n. 闸流晶体管 • topology [tə'pɒlədʒi] n. 拓扑；拓扑学 • traction ['trækʃn] n. 拽；牵引 • SCR=silicon controlled rectifier 可控硅整流器
翻译：和类型（交流或直流）这些参数进行电控制和电能转换，这些参数是如今 的机械、汽车和电子设备、还有用电控制和转换为其它形式的能量，如太阳能， 风能，电磁能、驱动器和高频率加热等所需要的。电力电子和传统电子的不同之 处在于，传统电子是利用电压和电流携带信息，而电力电子是携带能量。
• Thus, the main metric of power electronics is the efficiency, and therefore it can be expected that power electrics to play an increasingly important role in accurate management and control of electric energy at high speed in the age of information.
功率二极管，功率三极管和功率场效应晶体管工作原理相似，它们的功耗低， 但能够携带大量的电流，通常在截止状态，能够支持更大的反向偏置电压。功率器件 的结构通常是改变以适应更高的电流密度，更高的功耗，和/或更高的反向击穿电压。
16 Power Electronics
• 学习重点： • （1）掌握有关电力电子及其相关器件的基
本单词、词组和缩略语的基本含义及用法 • （2）培养阅读翻译有关电子及其相关器件
的科技文献和产品说明书的能力，主要是 英译汉的能力
Passage A
Power Electronics
1.生词
• commutation [ˌkɒmju'teɪʃn] n. 转换 • counterpart ['kaʊntəpɑːt] n. 对应物；相似之物；副
翻译：在正向偏压下，当没有加载门极电流时（也就是在未触发的状态），器件存在 漏电流。但是，如果同时施加一个选通脉冲，晶闸管导通，正向偏置电阻较小，在正 向导通时，允许非常大（几安培）的电流流入。如果超过正向击穿电压，晶闸管仍然 导通，但这是不可取的，这时该器件不能用于控制传导。
翻译：电力电子系统的性能和经济性都是由可用的器件来确定的，现今主要是半 导体器件。这些器件可用作为开关，或作为放大器。一个理想的开关仅是打开或 关闭，所以不消耗任何功率。半导体器件作为开关可以接近于这个理想特性，所 以大多数电力电子应用依赖于开关器件的开启和关闭，从而使系统效率很高、能 耗低。
• By contrast, in the case of the amplifier, the current through the device varies continuously according to a controlled input. The voltage and current at the device terminals follow a load line, and the power dissipation inside the device is large compared with the power delivered to the load.
• In the forward biased mode, with no gate current present (i.e. in the untriggered state), the device exhibits a leakage current. If a gating pulse is applied at the same time however, the thyristor fires and the forward resistance of the device fall to a very low value, allowing very large (several amperes) currents to flow in the forward conducting mode. If the forward breakover voltage (Vfbo) is exceeded, thyristors can also be made to fire, but this is not desirable as the device is not then being used to CONTROL conduction.
2. 课文翻译讲解
• Power electronics is power conversion and control from one of power (energy) source to a desired form by using new technologies such as power transistors, IGBTs (Insulated Gate Bipolar Transistors), and microprocessors. The basic functions of power electronics include the use of electronics to control and transform electric energy in terms of voltage, current, frequency, and waveform,
翻译：电力电子是对电（能）源进行转换和控制的技术，它是使用诸如功率晶体管， IGBT（绝缘栅双极型晶体管）和微处理器等新技术来实现的。电力电子的基本功能是 根据电压、电流、频率、波型、
• and type (ac or dc) needed by today’s machines, motors, and electronic equipment, and also include the use of electronic control for conversion to other forms of energy such as solar energy, wind energy, electromagnetic energy, actuators, and highfrequency heating. The difference of the power electronics and the classical electronics is that the electrical currents and voltages are used to carry information with classical electronics, whereas with power electronics, they carry power.
翻译： （2）晶闸管 晶闸管，也称为可控硅整流器（SCR），是一个四层三结的PNPN器件，它有三个 极：阳极、阴极和门极，晶闸管的符号如图16-A1所示，图16-A2所示为晶闸管的典 型特性曲线。在反向偏置区，其特性相似于是一个二极管。所有的电流，除很小的 漏电流外，都被阻断（反向阻断区），直到反向击穿区。
• (2) Thyristor
• The thyristor, also called a silicon-controlled rectifier (SCR), is basically a four-layer threejunction pnpn device. It has three terminals: anode, cathode, and gate，the symbol of thyristor is shown in figure 16-A1 and the figure 16-A2 shows a typical characteristic curve of a thyristor. In the reverse biased region it behaves in a similar way to a diode. All current, apart from a small leakage current is blocked (reverse blocking region) until the reverse breakdown region is reached.
现今，功率半导体器件几乎都是基于硅材料的，分类如下：
• (1) Power diode, Power transistor and Power MOSFET
• The power diode, power transistor and power MOSFET operate on similar principles to their lowpower counterparts, but are able to carry a larger amount of current and are typically able to support a larger reverse-bias voltage in the off-state. The structures of the power devices are often changed in order to accommodate the higher current density, higher power dissipation, and/or higher reverse
本 • conv dissipate ['dɪsɪpeɪt] v. 耗散；浪费
• induction [ɪn'dʌkʃn] n. 感应 • metric ['metrɪk] n. 标准；度量 • thyristor [ θai'ristə ] n. 闸流晶体管 • topology [tə'pɒlədʒi] n. 拓扑；拓扑学 • traction ['trækʃn] n. 拽；牵引 • SCR=silicon controlled rectifier 可控硅整流器
翻译：和类型（交流或直流）这些参数进行电控制和电能转换，这些参数是如今 的机械、汽车和电子设备、还有用电控制和转换为其它形式的能量，如太阳能， 风能，电磁能、驱动器和高频率加热等所需要的。电力电子和传统电子的不同之 处在于，传统电子是利用电压和电流携带信息，而电力电子是携带能量。
• Thus, the main metric of power electronics is the efficiency, and therefore it can be expected that power electrics to play an increasingly important role in accurate management and control of electric energy at high speed in the age of information.