Electrical Engineering Lecture on Methods of Analysis and Selected Topics

Explore lectures on methods of analysis such as source conversions, current sources in parallel, mesh analysis, supermesh, and examples in the field of electrical engineering. Get insights on loop currents, Kirchhoff's voltage law, and formatted approaches for mesh analysis. Engage with assignments and submission deadlines mentioned in the announcement.

• Electrical Engineering
• Analysis Methods
• Source Conversions
• Mesh Analysis
• Supermesh

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1. EE 201 Lecture 7 -Week 4 1

2. Chapter 8 Methods of Analysis and Selected Topics (dc) Source conversions Current sources in parallel Mesh Analysis 2

3. Source Conversion 3

4. Example 4

5. Current Sources in Parallel 5

6. Mesh Analysis Step 1: Two loop currents (I1 and I2) are assigned in the clockwise direction in the windows of the network. Step 2: Polarities are drawn within each window to agree with assumed current directions. Step 3: Kirchhoff s voltage law is applied around each loop in the clockwise direction. 6

7. Mesh Analysis Loop 1: 2 2?1 4 ?1 ?2 = 0 Loop 2: 6 ?2 4 ?2 ?1 = 0 Loop 1: 2 6 ?1+ 4?2=0 Loop 2: 6 + 4?1 5?2= 0 7

8. Mesh Analysis (Formatted Approach) Loop 1: ?1 ?2= Loop 2: ?2 ?1= ( ) 8

9. Supermesh 9

10. Supermesh 10

11. Example 1 ?1= 2.18 A ?2= 0.77 ? ?1 ?2= 1.41 ? 11

12. Example 2 12

13. Example 3 ???????? ????: 10 ?1+ 9?2 14?3= 20 ?3= 8 ? ?1 ?2= 3 ?1= ?2 3 30 + 10 ?2+ 9?2 112 = 20 ?2= 8.526 ?,?1= 5.526 ? ?6 = 2.47 ? ???? ?8 = 0.526 ? (??? ?) 13

14. Example 4 ?1 ?1+ ?1 ?2 ?2 ?2+ ?3= ?3= ?3= - - 2 ?1 1 ?2 0 ?3= 2 - 1 ?1+ 6 ?2 3 ?3= 4 - 0 ?1 3 ?2+ 7 ?3= 2 14

15. Announcement & Review HW 2 is assigned and is due next week (2 Oct.) You have until next Monday (30 Sept.) to submit HW 1 if you have not submitted (-2 for late submission) 15