Lecture Electric circuit theory - Two-port networks presents the following content: Parameters, relationships between parameters, two-port network analysis, interconnection of networks, equivalent two-port networks of magnetically coupled circuits,...
Trang 1Electric Circuit Theory
Two-port Networks
Nguy ễ n Công Ph ươ ng
Trang 2I Basic Elements Of Electrical Circuits
II Basic Laws
III Electrical Circuit Analysis
IV Circuit Theorems
V Active Circuits
VI Capacitor And Inductor
VII First Order Circuits
VIII.Second Order Circuits
IX Sinusoidal Steady State Analysis
X AC Power Analysis
XI Three-phase Circuits
XII Magnetically Coupled Circuits
XIII.Frequency Response
XIV.The Laplace Transform
XV Two-port Networks
Trang 3Two-port Network
1 Introduction
2 Parameters
3 Relationships between Parameters
4 Two-port Network Analysis
Trang 53 Relationships between Parameters
4 Two-port Network Analysis
Trang 72 21
I
V z
Trang 82 22
I
V z
Trang 101 =0
=
I
V z
Trang 111 =0
=
I
V z
Trang 122 =0
=
I
V z
Trang 132 =0
=
I
V z
Trang 173 Relationships between Parameters
4 Two-port Network Analysis
Trang 192 21
V
I y
V
Linear Network V 2 = 0
Trang 202 22
V
I y
Trang 221 =0
=
V
I y
V
1 2 (1// 2) 0.67
1
1.5S 0.67
→ y = I =
I
Trang 231 =0
=
V
I y
I
Trang 242 =0
=
V
I y
V
2 = 3Ω = 2Ω = − 2 1
112
1
0.5S 2
−
I y
I
Trang 252 =0
=
V
I y
V
2 3 (2 // 3) 1.2
Trang 273 Relationships between Parameters
4 Two-port Network Analysis
Trang 29Inverse Hybrid Parameters
Trang 31Inverse Transmission Parameters
Trang 33Two-port Network
1 Introduction
2 Parameters
3 Relationships between Parameters
4 Two-port Network Analysis
Trang 34Relationships between Parameters (1)
Trang 35Relationships between Parameters (2)
Trang 36Relationships between Parameters (3)
Trang 37Two-port Network
1 Introduction
2 Parameters
3 Relationships between Parameters
4 Two-port Network Analysis
Trang 38Two-port Network Analysis (1)
14.09 4.94 A 2.47 3.96 A
j j
Trang 39Two-port Network Analysis (2)
Trang 40Two-port Network Analysis (3)
Trang 41Two-port Network Analysis (4)
Trang 42Two-port Network Analysis (5)
Trang 43Two-port Network Analysis (6)
Trang 44Two-port Network Analysis (7)
Trang 45Two-port Network Analysis (8)
A
Z
M
Z
Trang 46Two-port Network Analysis (9)
Trang 47Two-port Network
1 Introduction
2 Parameters
3 Relationships between Parameters
4 Two-port Network Analysis
Trang 59Ex 1
Trang 62123
Trang 63Two-port Network
1 Introduction
2 Parameters
3 Relationships between Parameters
4 Two-port Network Analysis
Trang 65a c b
Trang 66T & П Networks (3)
Ex 2
1.5 0.5
; 0.5 0.83
Trang 67Two-port Network
1 Introduction
2 Parameters
3 Relationships between Parameters
4 Two-port Network Analysis
Trang 68Equivalent Two-port Networks of Magnetically Coupled Circuits (1)
Trang 691 2
2
1 2 1
Trang 70Ex. Equivalent Two-port Networks of Magnetically Coupled Circuits (3)
1
E
Trang 71Equivalent Two-port Networks of Magnetically Coupled Circuits (4)
1
E
1 2
1
E
Trang 72Ex. Equivalent Two-port Networks of Magnetically Coupled Circuits (5)
1
E
12
a b c
Trang 73Two-port Network
1 Introduction
2 Parameters
3 Relationships between Parameters
4 Two-port Network Analysis
Trang 782 = eq
oc eq
−
−
Z → Z2 = 43.31 − j 3.77 Ω
Trang 79Z Zb
c
Z Z
10 20 30
a c b
= Ω
= Ω
= Ω
Z Z Z
Trang 81Input Impedance (7)
2 = 0
Z
2 1
Trang 82B AZ
A C
Z B D
Trang 83Z 1sc = Z ab = { [(Z 7 //Z 6 //Z 5 )+Z 3 ]//Z 4 //Z 2 } +Z 1
Z 1sc = ?
Trang 86B AZ
A C
Z B D
Trang 87Two-port Network
1 Introduction
2 Parameters
3 Relationships between Parameters
4 Two-port Network Analysis
Trang 88Transfer Function (1)
• Voltage transfer function:
• Current transfer function:
• Voltage – current transfer function:
2 1
v = V
K
V
2 1
i = I
K
I
2 1
vi = V
K
I
Trang 8911 22 12 21 11
21 2
Trang 90Transfer Function (3)
2 = − L 2
21 2
11 22 12 21 11
21 2
Trang 91Transfer Function (4)
2 1
i = I
K
I
22 1
11 22 12 21 11
21 2
Ex 1
Trang 92Transfer Function (5)
2 1
vi = V
K
I
22 1
11 22 12 21 11
21 2
11 22 12 21 11
L
L L
6.60 5.15
L vi
Ex 1
Trang 93j j