Resonant and Soft-Switching Techniques in Power Electronics

Midterm exam: one-week take-home exam, to be handed out in class on March 14 and collected at beginning of class on March 21. To cover HW #1-6.

Final exam: five-day take-home exam, to be handed out in class on Friday, May 2 and due on Wednesday, May 7 at 2 pm. To cover HW #1-11.

Monday	Wednesday	Friday
1. Jan. 14 Introduction Powerpoint slides for Lecture 1 (Equivalent Spr. 06 lectures 1,2, and part of 3)	2. Jan. 16 Series resonant converter conversion ratio Sinusoidal analysis of resonant converters (Ch. 19 slides) See also Typed notes (Ch. 2) on sinusoidal analysis methods Powerpoint slides for Lecture 2 (Equivalent Spr. 06 lectures 3 and 4)	3. Jan. 18 Parallel resonant converter conversion ratio; SRC and PRC tank bode plots Sinusoidal analysis of resonant converters (Ch. 19 slides) See also Typed notes on sinusoidal analysis methods (Ch.2) Powerpoint slides for Lecture 3 (Equivalent Spr. 06 lectures 5 and 6)
Jan. 21 Holiday: Martin Luther King Day	4. Jan. 23 Zero-current and zero-voltage switching Sinusoidal analysis of resonant converters (Ch. 19 slides) See also Typed notes on sinusoidal analysis methods (Ch. 2) Powerpoint slides for Lecture 4 (Equivalent Spr. 06 lecture 7)	5. Jan. 25 Load dependent propertiers of resonant converters - output characteristics Sinusoidal analysis of resonant converters (Ch. 19 slides) See also Typed notes on sinusoidal analysis methods (Ch. 2) Powerpoint slides for Lecture 5 (Equivalent Spr. 06 lecture 8) HW #1 due: Review
6. Jan. 28 Load-dependent propertiers of resonant converters - dependence of transistor current on load Sinusoidal analysis of resonant converters (Ch. 19 slides) See also Typed notes on sinusoidal analysis methods (Ch. 2) Powerpoint slides for Lecture 6 (Equivalent Spr. 06 lecture 9)	7. Jan. 30 Load-dependent propertiers of resonant converters - dependence of ZVS on load Sinusoidal analysis of resonant converters (Ch. 19 slides) See also Typed notes on sinusoidal analysis methods (Ch. 2) Powerpoint slides for Lecture 7 (Equivalent Spr. 06 lecture 10)	8. Feb. 1 LCC inverter example Sinusoidal analysis of resonant converters (Ch. 19 slides) See also Typed notes on sinusoidal analysis methods (Ch. 2) Powerpoint slides for Lecture 8 (Equivalent Spr. 06 lecture 11) HW #2 due: Sinusoidal analysis
9. Feb. 4 Introduction to resonant converter dynamic analysis Materials on dynamic modeling of resonant converters Powerpoint slides for Lecture 9 (Equivalent Spr. 06 lecture 12)	10. Feb. 6 Review: Amplitude and frequency modulation Materials on dynamic modeling of resonant converters Powerpoint slides for Lecture 10 Discussion includes part of Spr. 06 lecture 13 as well as additional review material on AM and FM	11. Feb. 8 Spectra and envelope response of resonant inverters Materials on dynamic modeling of resonant converters Powerpoint slides for Lecture 11 Equivalent Spr. 06 lectures: End of 13 and part of 14 HW #3 due: Sinusoidal analysis and design
12. Feb. 11 Spectra and envelope response of resonant inverters Materials on dynamic modeling of resonant converters Powerpoint slides for Lecture 12 (Equivalent Spr. 06 lecture 14)	13. Feb. 13 Spectra and envelope response of resonant inverters. Perhaps begin phasor transform methods for ac modeling Materials on dynamic modeling of resonant converters Powerpoint slides for Lecture 13 (Equivalent Spr. 06 lecture 15)	14. Feb. 15 Phasor transform methods for ac modeling Materials on dynamic modeling of resonant converters Powerpoint slides for Lecture 14 (Equivalent Spr. 06 lecture 16)
15. Feb. 18 Phasor transform methods for ac modeling Materials on dynamic modeling of resonant converters HW #4 due: Dynamic analysis of parallel resonant inverter Powerpoint slides for Lecture 15 (Equivalent Spr. 06 lecture 17)	16. Feb. 20 Phasor transform methods for ac modeling Materials on dynamic modeling of resonant converters Powerpoint slides for Lecture 16 (Equivalent Spr. 06 lecture: Part of 18)	17. Feb. 22 Phasor transform methods for ac modeling Materials on dynamic modeling of resonant converters Powerpoint slides for Lecture 17 (Discussion concludes Spr. 06 lecture 18 and includes additional material on finding envelope transfer functions in Matlab)
18. Feb. 25 Introduction to state plane analysis Materials on state plane analysis of resonant converters Powerpoint slides for Lecture 18 (Equivalent Spr. 06 lecture 19)	19. Feb. 27 Introduction to state plane analysis Materials on state plane analysis of resonant converters Powerpoint slides for Lecture 19 (Equivalent Spr. 06 lectures 20 and part of 21)	20. Feb. 29 Series resonant converter See also Flyback converter example Powerpoint slides for Lecture 20 (Equivalent Spr. 06 lectures rest of 21 and 22) HW #5 due: Dynamic modeling
21. Mar. 3 Series resonant converter See also Flyback converter example Powerpoint slides for Lecture 21 (Equivalent Spr. 06 lecture 23)	22. Mar. 5 Series resonant converter See also Flyback converter example Powerpoint slides for Lecture 22 (Equivalent Spr. 06 lecture 24)	23. Mar. 7 Series resonant converter Parallel resonant converter Powerpoint slides for Lecture 23 (Equivalent Spr. 06 lecture: Part of 25) HW #6 due: Introductory state plane analysis problems
24. Mar. 10 Parallel resonant converter Powerpoint slides for Lecture 24 (Equivalent Spr. 06 lecture: Rest of 25)	25. Mar. 12 Parallel resonant converter Powerpoint slides for Lecture 25 (Discussion includes beginning of Spr. 06 lecture #26 as well as additional material on losses during ringing of a resonant tank)	26. Mar. 14 Parallel resonant converter Video of Spr. 06 lecture will be shown in class today Powerpoint slides for Spring 2006 Lecture 26 HW #7 due: Analysis of flyback snubber and series resonant converter
27. Mar. 17 Introduction to resonant switch converters. State-plane analysis of the ZCS quasi-resonant switch Slides on quasi-resonant converters Powerpoint slides for Lecture 27 (Equivalent Spr. 06 lecture: Most of 27)	28. Mar. 19 State-plane analysis of the ZCS quasi-resonant switch Characteristics of ZCS-QR resonant switch Powerpoint slides for Lecture 28 (Equivalent Spr. 06 lecture: Rest of 27, part of 28)	29. Mar. 21 Characteristics of ZCS-QR resonant switch Resonant switch topologies (textbook Section 20.2) Powerpoint slides for Lecture 29 (Equivalent Spr. 06 lecture: Rest of 28 and 29) Midterm exam due
Mar. 24 No lecture: Spring break	Mar. 26 No lecture: Spring break	Mar. 28 No lecture: Spring break
30. Mar. 31 State-plane analysis of the ZVS quasi-resonant switch Powerpoint slides for Lecture 30 (Equivalent Spr. 06 lecture 30)	31. Apr. 2 AC modeling of resonant switch converters Background on state-space averaging and circuit averaging and averaged switch modeling: Textbook sections 7.3 and 7.4 Averaging terminal waveforms of a resonant switch: Textbook section 20.2.2 Lecture notes on averaged switch modeling Extension of state-space averaging to model dynamics of resonant switch converters Powerpoint slides for Lecture 31 (Equivalent Spr. 06 lecture 31)	32. Apr. 4 AC modeling of resonant switch converters Background on state-space averaging and circuit averaging and averaged switch modeling: Textbook sections 7.3 and 7.4 Averaging terminal waveforms of a resonant switch: Textbook section 20.2.2 Lecture notes on averaged switch modeling Extension of state-space averaging to model dynamics of resonant switch converters Powerpoint slides for Lecture 32 (Equivalent Spr. 06 lecture 32)
33. Apr. 7 HW #8 due: Quasi-resonant converters AC modeling of quasi-resonant converters Quasi-resonant SEPIC example Boost QR-ZCS example Powerpoint slides for Lecture 33 (Equivalent Spr. 06 lecture 33)	34. Apr. 9 Single-transistor ZVS QSW converter Materials on quasi-square wave converters Single-transistor ZVS QSW switch Powerpoint slides for Lecture 34 (Equivalent Spr. 06 lectures: End of 34, most of 35) Note: During Spr. 06 Lecture 34, Prof. Erickson presents presents slides by Intel describing "The power delivery challenges for high performance low-voltage microprocessors". These slides will not be presented in 2008.	35. Apr. 11 Single-transistor and two-transistor ZVS QSW converters Materials on quasi-square wave converters Single-transistor ZVS QSW switch Two-transistor ZVS QSW switch Powerpoint slides for Lecture 35 (Equivalent Spr. 06 lectures: End of 35, 36)
36. Apr. 14 Video of Spring 2006 Lecture #37 will be shown in class today: Survey of soft-switching converters with constant switching frequency. Start analysis of zero voltage transition converter Materials on ZVT and active clamp converters Powerpoint slides for Spr. 2006 Lecture 37 HW #9 due: DC and AC modeling of a quasi-resonant converter	37. Apr. 16 The zero-voltage transition converter Analysis of the zero-voltage transition converter Powerpoint slides for Lecture 37 (Equivalent Spr. 06 lecture 38)	38. Apr. 18 Analysis of the zero-voltage transition converter Issues with the ZVT converter, including ZCS of output diodes More on ZCS of output diodes Powerpoint slides for Lecture 38 (Equivalent Spr. 06 lecture: Most of 39)
39. Apr. 21 Snubbing of secondary side diodes in ZVT Issues with the ZVT converter, including ZCS of output diodes More on ZCS of output diodes Intro to active clamp converters Powerpoint slides for Lecture 39 (Equivalent Spr. 06 lecture: Rest of 39, part of 40) HW #10 due: Design of QSW converter with synchronous rectifier	40. Apr. 23 Active clamp forward converter Intro to active clamp converters State plane analysis of active clamp forward converter More on ZVS of active clamp forward converter Powerpoint slides for Lecture 40 (Equivalent Spr. 06 lecture: Rest of 40, part of 41)	41. Apr. 25 Please watch Spring 2006 Lecture #42: State plane analysis of active clamp forward converter State plane analysis of active clamp forward converter More on ZVS of active clamp forward converter Powerpoint slides for Spr. 2006 Lecture 42
42. Apr. 28 Please watch Spring 2006 Lecture #43: State plane analysis of 3-element tank circuits Analysis of multi-resonant converters Powerpoint slides for Spr. 2006 Lecture 43.	43. Apr. 30 Please watch Spring 2006 Lecture #44: Short question and answer session HW #11 due: ZVT and active clamp converters	44. May 2 No class Final exam handed out to on-campus students and is due Wednesday, May 7 by 2 PM. Off-campus students: Send an email requesting final exam when you are ready, final will be due 5 days later. All off-campus work must be received by Monday, May 19 at 5:00 PM MDT.

Lecture schedule

ECEN 5817 Spring 2008

1. Jan. 14

2. Jan. 16

3. Jan. 18

Jan. 21

4. Jan. 23

5. Jan. 25

6. Jan. 28

7. Jan. 30

8. Feb. 1

9. Feb. 4

10. Feb. 6

11. Feb. 8

12. Feb. 11

13. Feb. 13

14. Feb. 15

15. Feb. 18

16. Feb. 20

17. Feb. 22

18. Feb. 25

19. Feb. 27

20. Feb. 29

21. Mar. 3

22. Mar. 5

23. Mar. 7

24. Mar. 10

25. Mar. 12

26. Mar. 14

27. Mar. 17

28. Mar. 19

29. Mar. 21

Mar. 24

Mar. 26

Mar. 28

30. Mar. 31

31. Apr. 2

32. Apr. 4

33. Apr. 7

34. Apr. 9

35. Apr. 11

36. Apr. 14

37. Apr. 16

38. Apr. 18

39. Apr. 21

40. Apr. 23

41. Apr. 25

42. Apr. 28

43. Apr. 30

44. May 2

All off-campus work must be received by Monday, May 19 at 5:00 PM MDT.