Module 3.2 Annotated.pdf - Module 3.2 Analysis Techniques 2 The Mesh-Current Method ECE 201 Foundations of Electric Circuits Dr Kevin Scoles Drexel

Module 3.2 Annotated.pdf - Module 3.2 Analysis Techniques 2...

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ECE 201 Foundations of Electric Circuits Module 3.2 Analysis Techniques 2 The Mesh-Current Method Dr. Kevin Scoles Drexel University
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ANALYSIS TECHNIQUES | Announcements Lab 3 worksheet uploads accepted through 11:59 PM Tuesday Keep your adjustable voltage regulator assembled Suggest you do the Lab 4 theory section of worksheet before your lab session Quiz 1 will close at the end of the day on Tuesday 7/18 Quiz 2 will close at the end of the day on Tuesday 7/25 Quiz 3 on Node-Voltage Technique opens Wednesday 7/19 Get your quiz work uploads in on time! 2
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Quiz Status | Mastery-Level Status per Quiz - Number & Avg Grade 3 Students with Mastery Grade 0 20 40 60 80 100 Mod 1 Mod 2 Mod 3.1 Mod 3.2 Mod 3.3 Mod 4.1 Mod 4.2 Mod 5.1 75 Class Size 93% 81% 76% 84% 75% 83% 1€ node - voltage doomed :fdm
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ANALYSIS TECHNIQUES | Overview Mesh-Current Method Examples Supermeshes Examples Solution Techniques Verification in Multisim and MATLAB Laboratory: Node-Voltage Analysis Exercises (Chapter 3) 4 ] today ] wed th - sffri
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ANALYSIS TECHNIQUES | The Mesh-Current Method Analyze circuit by writing KVL for each user-defined mesh Solve the resulting system of linear equations for the mesh currents Use the solutions to find the desired currents or voltages within the circuit 5 - .
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ANALYSIS TECHNIQUES | Solution Procedure Step 1 Identify all meshes and assign to each of them an unknown mesh current For convenience, define the mesh currents to be clockwise in direction Step 2 Apply Kirchhoff’s voltage law (KVL) to each mesh Step 3 Solve the resultant simultaneous equations to determine the mesh currents 6 E
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ANALYSIS TECHNIQUES | Put This in Motion Step 1 Identify all meshes and assign to each of them an unknown mesh current. For convenience, define the mesh currents to be clockwise in direction. 7 I a , I b , and I c are the “real” currents Ulaby, Circuits 3rd ed, 2015
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ANALYSIS TECHNIQUES | Put This in Motion Step 1 Identify all meshes and assign to each of them an unknown mesh current. For convenience, define the mesh currents to be clockwise in direction. 8 Ulaby, Circuits 3rd ed, 2015 a a
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ANALYSIS TECHNIQUES | Put This in Motion Step 1 Identify all meshes and assign to each of them an unknown mesh current. For convenience, define the mesh currents to be clockwise in direction. 9 I(R1) = I a = I 1 I(R2) = I c = I 2 I(R3) = I b = I 1 - I 2 Ulaby, Circuits 3rd ed, 2015 , .
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ANALYSIS TECHNIQUES | Put This in Motion Step 2 Apply Kirchhoff’s voltage law (KVL) to each mesh Be aware of contribution(s) from other meshes 10 Ulaby, Circuits 3rd ed, 2015
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ANALYSIS TECHNIQUES | Put This in Motion Step 2 Apply Kirchhoff’s voltage law (KVL) to each mesh 11 Mesh 1 Mesh 2 Ulaby, Circuits 3rd ed, 2015 Notre , -( ( I±E)Rz=0 TI , - IDR3tIzRz + ( Iz - I ,)RztIzR±=O
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ANALYSIS TECHNIQUES | Put This in Motion Step 2 Apply Kirchhoff’s voltage law (KVL) to each mesh 12 Mesh 1 Mesh 2 V 0 + I 1 R 1 + I 1 I 2 ( ) R 3 = 0 R 1 + R 3 ( ) I 1 R 3 I 2 = V 0 I 2 I 1 ( ) R 3 + I 2 R 2 = 0 R 3 I 1 + R 2 + R 3 ( ) I 2 = 0 Ulaby, Circuits 3rd ed, 2015
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ANALYSIS TECHNIQUES | Put This in Motion Step 3 Solve the resultant simultaneous equations to determine the mesh currents 13 R 1 + R 3 R 3
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  • Fall '19
  • Mesh Analysis, Kirchhoff's circuit laws, Voltage drop, Basic Engineering Circuit Analysis

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