1. Lecture 17: Mutual Inductance and Transformers Nilsson & Riedel 6.4, 6.5, 9.10, 9.11 ENG17 (Sec. 2): Circuits I Spring 2014 1 May 27, 2014

2. Overview Mutual Inductance Self Inductance Energy Stored Transformers Ideal Case 2

3. Magnetically Coupled Coils 3

4. Self- and Mutual-Inductance 4

5. Dot Convention 5

6. Mesh Current 6

7. Overview Mutual Inductance Self Inductance Energy Stored Transformers Ideal Case 7

8. Self Inductance 8

9. Mutual Inductance i.t.o. Self Inductance 9

10. Overview Mutual Inductance Self Inductance Energy Stored Transformers Ideal Case 10

11. Energy Stored in Magnetically-Coupled Coils 11

12. Overview Mutual Inductance Self Inductance Energy Stored Transformers Ideal Case 12

13. Transformer Circuit 13

14. Frequency Domain Circuit 14

15. Overview Mutual Inductance Self Inductance Energy Stored Transformers Ideal Case 15

16. Ideal Transformer 16

17. Sign Convention 17

18. Impedance Matching 18

19. Example 19

20. Recap Mutual Inductance Self Inductance Energy Stored Transformers Ideal Case 20