Lecture schedule

ECEN 5817 Spring 2012

Updated **05/04/12**. Tentative lecture schedule, including links to lecture slides and notes, and links to assignments. The schedule is subject to change, please check frequently.
Monday	Wednesday	Friday
Jan. 16 Holiday: Martin Luther King Day	1. Jan. 18 Introduction: course vitals, switching losses in standard "hard-switched" PWM converters Lecture 1 slides (annotated) Handout slides for lectures 1-3 (suitable for taking notes) Simulation files for the introductory example HW1 assigned	2. Jan. 20 Introduction to soft switching and resonant converters Lecture 2 slides (annotated)
3. Jan. 23 Finish introduction to soft switching and resonant converters Start textbook Chapter 19 Lecture 3 slides (annotated) Handout slides for lectures 3-5 (suitable for taking notes) Reading assignment due: textbook Sections 19.1 and 19.2 Course materials: Sinusoidal analysis of resonant converters (Ch. 19 slides) See also Typed notes (Ch. 2) on sinusoidal analysis method	4. Jan. 25 Characteristics of series and parallel resonant converter via sinusoidal approximation Lecture 4 slides (annotated) Sinusoidal analysis of resonant converters (Ch. 19 slides) See also Typed notes on sinusoidal analysis methods (Ch. 2)	5. Jan. 27 Series and parallel resonant converter characteristics Lecture 5 slides (annotated) Handout slides for lectures 5-9 (suitable for taking notes) Sinusoidal analysis of resonant converters (Ch. 19 slides) See also Typed notes on sinusoidal analysis methods (Ch. 2) HW1 due HW2 assigned
6. Jan 30 Zero-current and zero-voltage switching Lecture 6 slides (annotated) Sinusoidal analysis of resonant converters (Ch. 19 slides) See also Typed notes on sinusoidal analysis methods (Ch. 2)	7. Feb 1 Zero-current and zero-voltage switching Load-dependent propertiers of resonant converters Lecture 7 slides (annotated) Sinusoidal analysis of resonant converters (Ch. 19 slides) See also Typed notes on sinusoidal analysis methods (Ch. 2)	8. Feb 3 Load-dependent properties of resonant converters This lecture was cancelled due to snow storm. Instead, lecture 8 from 2010 is posted on-line. Couple of annotated slides covered in 2010 lecture 7, to connect to 2010 lecture 8 posted on-line. Lecture 8 slides (annotated) Sinusoidal analysis of resonant converters (Ch. 19 slides) See also Typed notes on sinusoidal analysis methods (Ch. 2)
9. Feb 6 LCC inverter example In class: playback of lecture 8 from 2010. Lecture 9 taped in 2010 is posted on-line. Lecture 9 slides (annotated) HW2 due HW3 assigned	10. Feb 8 Introduction to resonant converter dynamic analysis In class: playback of lecture 9 from 2010. Lecture 10 taped in 2010 is posted on-line. All students should plan to see lectures 10 on-line. Lecture 10 slides (annotated) Handout slides for lectures 10-XX Review: Amplitude and frequency modulation Materials on dynamic modeling of resonant converters	11. Feb 10 Spectra and envelope response of resonant inverters Normal schedule resumes with live lecture 11. Lecture 11 slides (annotated) Materials on dynamic modeling of resonant converters
12. Feb 13 Spectra and envelope response of resonant inverters Lecture 12 slides (annotated) MATLAB files to compute and plot Genv have been added on the simulations page Materials on dynamic modeling of resonant converters HW3 due HW4 assigned	13. Feb 15 Spectra and envelope response of resonant inverters Lecture 13 slides (annotated) Materials on dynamic modeling of resonant converters	14. Feb 17 Phasor transform methods for ac equivalent circuit modeling Lecture 14 slides (annotated) Materials on dynamic modeling of resonant converters
15. Feb 20 Phasor transform methods for ac modeling Lecture 15 slides (annotated) Materials on dynamic modeling of resonant converters HW4 due HW 5 assigned	16. Feb 22 Finish phasor transform methods for ac modeling Introduction to state plane analysis Lecture 16 slides (annotated) Lecture 16 handout slides	17. Feb 24 Introduction to state plane analysis Lecture 17 slides (annotated) Materials on state plane analysis of resonant converters HW5 due HW6 assigned
18. Feb 27 Introduction to state plane analysis: flyback example This lecture recorded on Friday, Feb 24, 11-11:50am. Lecture 18 slides (annotated) Materials on state plane analysis of resonant converters	19. Feb 29 Introduction to state plane analysis: flyback example This lecture recorded on Friday, March 2, 10-10:50am. Lecture 19 slides (annotated) Materials on state plane analysis of resonant converters	20. Mar 2 Introduction to state-plane analysis: flyback example Lecture recorded Friday, March 2, 11-11:50am Lecture 20 slides (annotated)
21. Mar 5 Lecture 21 handout slides (suitable for taking notes) Lecture 21 slides (annotated) Series resonant converter HW6 due HW7 assigned	22. Mar 7 Series resonant converter Lecture 22 slides (annotated)	23. Mar 9 Lecture 23 slides (annotated) Lecture 23 handout slides (suitable for taking notes) Series resonant converter
24. Mar 12 Lecture 24 slides (annotated) Series resonant converter: discontinuous modes HW7 due	25. Mar 14 Lecture 25 slides (annotated) Lecture 25-27 handout slides (suitable for taking notes) Parallel resonant converter Midterm exam handed out	26. Mar 16 Lecture 26 slides (annotated) Parallel resonant converter
27. Mar 19 Lecture 27 slides (annotated) Parallel resonant converter	28. Mar 21 Lecture 28 slides (annotated) Parallel resonant converter: design examples Midterm exam due	29. Mar 23 Lecture 29 slides (annotated) Parallel resonant converter: design examples PRC with capacitive output filter
Mar 26 Spring break	Mar 28 Spring break	Mar 30 Spring break
30. Apr 2 PRC with capacitive output filter Resonant switch converters Lecture 30 slides (annotated) HW8 assigned Additional materials on resonant-switch converters: Introduction to resonant switch converters. Textbook Chapter 20 slides (suitable for taking notes) State-plane analysis of the ZCS quasi-resonant switch Resonant switch topologies (textbook Section 20.2) State-plane analysis of the ZCS quasi-resonant switch	31. Apr 4 Lecture 31 slides (annotated) State-plane analysis of the ZCS quasi-resonant switch Characteristics of ZCS-QR resonant switch Slides on quasi-resonant converters	32. Apr 6 Lecture 32 slides (annotated) State-plane analysis of the half-wave and full-wave ZCS-QR resonant switch State-plane analysis of the ZVS quasi-resonant switch
33. Apr 9 Classification of resonant-switch converters Lecture 33 slides (annotated) HW9 assigned HW8 due	34. Apr 11 Lecture 34 slides (annotated) Single-transistor ZVS QSW converters Lecture 34-35 handout slides suitable for taking notes Materials on quasi-square wave converters Single-transistor ZVS QSW switch	35. Apr 13 Lecture 35 slides (annotated) Single-transistor ZVS-QSW quasi-resonant cell
36. Apr 16 Lecture 36 slides (annotated) Handout slides suitable for taking notes Two-transistor ZVS QSW converters Materials on quasi-square wave converters Single-transistor ZVS QSW switch Two-transistor ZVS QSW switch Start AC modeling of quasi-resonant converters HW10 assigned HW9 due	37. Apr 18 Lecture 37 slides (annotated) AC modeling of quasi-resonant converters Quasi-resonant SEPIC example Boost QR-ZCS example 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. Lecture notes on averaged switch modeling Extension of state-space averaging to model dynamics of resonant switch converters	38. Apr 20 Lecture 38 slides (annotated) Handout slides suitable for taking notes Survey of soft-switching converters with constant switching frequency. Start analysis of zero voltage transition converter 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 State plane analysis of active clamp forward converter State plane analysis of active clamp forward converter More on ZVS of active clamp forward converter Materials on ZVT and active clamp converters
39. Apr 23 Lecture 39 slides (annotated) State plane analysis of active clamp forward converter State plane analysis of active clamp forward converter More on ZVS of active clamp forward converter Materials on ZVT and active clamp converters HW11 assigned HW10 due	40. Apr 25 Lecture 40 slides (annotated) Handout slides suitable for taking notes The zero-voltage transition converter Analysis of the zero-voltage transition converter	41. Apr 27 Lecture 41 slides (annotated) The zero-voltage transition converter Analysis of the zero-voltage transition converter
42. Apr 30 Lecture 42 slides (annotated) ZVT conversion ratio Snubbing of secondary side diodes in ZVT Issues with the ZVT converter, including ZCS of output diodes More on ZCS of output diodes HW11 due	43. May 2 Lecture 43 slides (annotated, corrected M=V/(nVg), corrected Pzvt(J) calculation in the design example) A highly-efficient active-clamp flyback converter prototype [Thanks to Carissa, Greg and Luke!] Handout slides suitable for taking notes DCX overview and review of recent advances in resonant and soft-switching converters and applications Dual active bridge converter notes	44. May 4 Lecture 44 slides (annotated) Conclusions Final exam handed out to on-campus students; posted on D2L for off-campus students.