电路英文课件 (99)
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三极管及三极管放大电路英文ppt课件
uBE
(a )
Effect on input characteristics
为了规范事业单位聘用关系，建立和 完善适 应社会 主义市 场经济 体制的 事业单 位工作 人员聘 用制度 ，保障 用人单 位和职 工的合 法权益
半导体三极管2.1及.2 B其JT放的大特电性路
iC
200 A
IC ′
150 A
半导体三极管2.1及.2 B其JT放的大特电性路
2． The Output Characteristics(输出特性曲线)
iC / m A
饱和区
100
80
放
60
大
40
区
20
iB＝ 0A
0
2
4
6
8
截止区
(b)
Saturation region: b-e and b-c junctions are both forward-biased
2.4.2 The gain、input and output resistance of multistage amplifiers
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2.1 双极型三半极管导体2三.1.极1 B管JT及的其结构放和大符电号路
2.1 Bipolar Junction Transistor
2.1.1 The Structure and Symbol of BJT
2.2 Basic BJT Amplifiers
2.2.1 Amplification
Amplifier
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模拟集成电路设计英文课件：feedback
IG GmVF
2020/9/12
12
• 2.2 Current－Voltage Feedback (cont)
– Effect on input impedance
Qualitative analysis: Only a fraction of Vin is sustained by input impedance of Amp.→increased input impedance
– Effect on output impedance
Qualitative analysis:
Make a output current a faithful replica of
IG
the input signal（G）→high output
impedance current source
Quantitative analysis:
– Terminal Impedance Modification
2020/9/12
4
• 1.1 Properties of Feedback Circuits (cont.)
– Bandwidth Modification
Suppose the feedforward amplifier has a one-pole TF
2020/9/12
9
• 2.1 Voltage－Voltage Feedback (cont.)
– Effect on input impedance
Qualitative analysis: Only a fraction of Vin is sustained by input impedance of Amp.→increased input impedance
电路基础理论英文版课件第一章
Measurement
Resistance is measured in ohms (Ω) using a ohmmeter.
Definition
Definition
Capacitance is the ability of a capacitor to store electrical energy. It is measured by the capacity of the capacitor to hold a charge.
详细描述
04
Analysis methods for circuits
单击此处添加正文，文字是您思想的提炼，为了最终呈现发布的良好效果，请尽量言简意赅的阐述观点；单击此处添加正文，文字是您思想的提炼，为了最终呈现发布的良好效果，请尽量言简意赅的阐述观点；单击此处添加正文，文字是您思想的提炼，为了最终呈现发布的良好效果，请尽量言简意赅的阐述观点；单击此处添加正文 10*16
A circuit that allows the flow of AC current, typically used in household and industrial applications.
பைடு நூலகம்
Definition of Circuit
Components
01
Circuit components include resistors, capacitors, inductors, diodes, transistors, and power sources. These components are connected to form a complete circuit.
contents
目 录
Resistance is measured in ohms (Ω) using a ohmmeter.
Definition
Definition
Capacitance is the ability of a capacitor to store electrical energy. It is measured by the capacity of the capacitor to hold a charge.
详细描述
04
Analysis methods for circuits
单击此处添加正文，文字是您思想的提炼，为了最终呈现发布的良好效果，请尽量言简意赅的阐述观点；单击此处添加正文，文字是您思想的提炼，为了最终呈现发布的良好效果，请尽量言简意赅的阐述观点；单击此处添加正文，文字是您思想的提炼，为了最终呈现发布的良好效果，请尽量言简意赅的阐述观点；单击此处添加正文 10*16
A circuit that allows the flow of AC current, typically used in household and industrial applications.
பைடு நூலகம்
Definition of Circuit
Components
01
Circuit components include resistors, capacitors, inductors, diodes, transistors, and power sources. These components are connected to form a complete circuit.
contents
目 录
电路与电子技术课件(英文版)-第一章 电路的基本概念
Topics Covered
Week 1
Week 2
Monday Nov. 25, 2019
Tuesday Nov. 26, 2019
Friday Nov. 29, 2019
Monday Dec. 2, 2019
Tuesday Dec. 3, 2019
Friday Dec. 6, 2019
Fundamentals of Electric Circuits: Elements of electric circuits; Kirchhoff’s law; Voltage/Current divider laws; Series and parallel circuits
10
Alessandra Volta (1745 – 1827)
Kirchhoff’s Voltage Law(KVL)
▪ The voltage, or potential difference, btw two points in a circuit indicates the energy required to move charge from one point to the other.
13
Kirchhoff’s Voltage Law(KVL)
▪ The principle underlying KVL is that no energy is lost or created in an electric circuit; in circuit terms, the sum of all voltages associated with source must equal the sum of the load voltages, so that the net voltage around a closed circuit is _________?.
电路原理课件讲义英文版 Chapter_4
2. 3.
Assignment
1. Solve the problems 4.7, 4.19, 4.34 in pages 155-158
2.
Steps to Apply Superposition Principle:
1. Turn off all independent sources except one source. Find the output (voltage or current) due to that active source using nodal or mesh analysis. Repeat step 1 for each of the other independent sources. Find the total contribution by adding algebraically all the contributions due to the independent sources.
4.3 Superposition (迭加)
Superposition is based on linearity
The superposition principle states that the voltage across (or current through) an element in a linear circuit is the algebraic sum of the voltages across (or currents through) that element due to each independent source acting alone
电路原理课件讲义英文版chapter4
Chapter 4 Circuit Theorems
电路原理课件讲义英文版 Chapter_2汇总
Alternative form of KCL:
The sum of the currents entering a node is equal to the sum of the currents leaving the node.
Case 2 (closed boundary)
Generalized: a node may be regarded as a closed surface shrunk to a point. Two dimension: a closed boundary is the same as a closed path.
In general
Potentiometer
Linear resistor: obey Ohm’s Law.
Slope R
Nonlinear resistor: does not obey Ohm’s Law.
Slope R
Conductance is the ability of an element to conduct
2.1 Introduction
To actually determine the values of these variables in a given circuit requires that we understand some fundamental laws that govern electric circuits. Basic Laws: Ohm’s Law Kirchhoff’s Law
KCL:
KCL states that the algebraic sum of currents entering a node (or a closed boundary) is zero.
The sum of the currents entering a node is equal to the sum of the currents leaving the node.
Case 2 (closed boundary)
Generalized: a node may be regarded as a closed surface shrunk to a point. Two dimension: a closed boundary is the same as a closed path.
In general
Potentiometer
Linear resistor: obey Ohm’s Law.
Slope R
Nonlinear resistor: does not obey Ohm’s Law.
Slope R
Conductance is the ability of an element to conduct
2.1 Introduction
To actually determine the values of these variables in a given circuit requires that we understand some fundamental laws that govern electric circuits. Basic Laws: Ohm’s Law Kirchhoff’s Law
KCL:
KCL states that the algebraic sum of currents entering a node (or a closed boundary) is zero.
电路——邱关源PPT课件
1
2
3
4
D
24K
KD
R30
HEAD
C20 2n2(M)
KC
C
R29 12K
C39 103(M)
C33 22uF
R28 220
REC
KA
330K
D3
C40
1N4148
1uF
R23
1N4148 D2
R22 4.7K
C23
C24 47uF
B
1uF
C22
203
C2
1uF
R8 1.2K
BAT
6V
DC
POWSKT D1
DVC
C18 220uF
R6 CHANG
1K
BATTT3 8050 D
R7 24(0.5W)
C
C30 470uF
9
16 1
15 2
14 3
13 4
12 5
11 6
10 7
U4 TA7738
L4 47uH
C11 4.7uF
R37 2.2k
SPKSKT
C29 100uF
R42 68
C32 470uF
11
写在最后
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You Know, The More Powerful You Will Be
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在别人的演说中思考，在自己的故事里成长
1 2 3 4 5 6 7 8 9 10 11 12
R3
1UF
数字逻辑电路大全PPT课件(2024版)
第6页/共48页
Rb1 4kΩ
Rc 2 1.6kΩ
Vc 2
1
+VCC（ +5V） Rc4 130Ω
3
T2 4
1
3
A
31
2T2
D Vo
B
T1
C
Ve 2
1
3
2T 3
Re2
1kΩ
输入级
中间级
输出级
第7页/共48页
2．TTL与非门的逻辑关系
（1）输入全为高电平3.6V时。
T2、T3导通，VB1=0.7×3=2.1（V ），
列。 6 ． 74AS 系 列 —— 为 先 进 肖 特 基 系
列， 它是74S系列的后继产品。 7．74ALS系列——为先进低 功耗肖特基系列， 是74LS系列的后继产品。
第30页/共48页
2.3
一、 NMOS门电路 1．NMOS非门
MOS逻辑门电路
VDD (+12V)
VDD (+12V)
VDD (+12V)
0.4V
高 电 平 噪 声 容 限 第1V5页NH/共＝48V页OH （ min ） - VON ＝ 2.4V-2.0V ＝
四、TTL与非门的带负载能力
1．输入低电平电流IIL与输入高电平电流IIH （1）输入低电平电流IIL——是指当门电路的输入端
接低电平时，从门电路输入端流出的电流。
& Vo G0
呈 现 高 阻 ， 称 为 高 阻 态 ， 或 禁 止 态+V。CC
Rc2
Rc4
Rb1
Vc2 1
3
T2 4
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&
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