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Lecture Notes in Physics

Students nowadays can be pretty demanding about wanting the teacher’s PowerPoints, lecture notes, and other written forms of the content presented in class. And a lot of teachers are supplying those, in part trying to be responsive to students but also because many students now lack note-taking skills. If they can’t take good notes, why not help them succeed by supplying them with notes?

Therefore, this collection of physics lecture notes is dedicated to those who find it difficult to make their own notes, and also for anyone who is willing to expand his/her knowledge either targeting an exam or targeting general awareness. 

About the Creator of the Lecture Notes in Physics

Dr. Sadeeshvara Silva has completed his PhD (EEE) from the University of Waikato, New Zealand in 2021 and his B.Sc. (Hons. -1st class) from University of Sri Jayewardenepura, Sri Lanka in 2014. Soon after his doctoral studies, he joined Electric Power Engineering Centre, University of Canterbury as a Research Engineer to pursue his passion in Research & Development. He is currently contributing as a reviewer for journals such as IEEE Transactions on Industrial Electronics, IET Power Electronics and for IEEE conferences such as APEC, IECON, and TENCON. He is also a member of Engineering New Zealand (MEng-NZ), IEEE and IET. His research interests include power quality & surge protection, supercapacitor applications, transformer theory and design, frequency domain modelling and magnetics. Apart from this collection of lecture notes, he maintains another collection of eBooks available at: http://www.physicsebookcollection.com/

LinkedIn: LinkedIn Profile

TEACHING AND RESEARCH INTERESTS

Power electronics, Analogue and digital electronics, Electromagnetics, Applied electricity, Transient surge protection and power quality, Frequency domain circuit modelling, Transformer theory and design, High-frequency magnetics, Supercapacitor applications of power electronic circuits, and Engineering physics.

RESEARCH PUBLICATIONS AND PRESENTATIONS 

 I.       Journal article – S. U. Silva Thotabaddadurage, N. Kularatna, and D. A. Steyn-Ross, “Optimization of Supercapacitor Assisted Surge Absorber (SCASA) Technique: A New Approach to Improve Surge Endurance Using Air-Gapped Ferrite Cores,” Energies 2021, vol. 14, no. 14, p. 4337, Jul. 2021, doi: 10.3390/en14144337.

II.        Journal article – S. U. Silva Thotabaddadurage, N. Kularatna and D. A. Steyn-Ross, “Permeance based Design and Analysis of Supercapacitor Assisted Surge Absorber for Magnetic Component Selection”, IEEE Transactions on Industrial Electronics (submitted in August, 2021).

III.    Journal article – S. U. Silva Thotabaddadurage, N. Kularatna and D. A. Steyn-Ross, “Importance of Leakage Magnetic Field and Fringing Flux in Surge Protector Design: An Investigation based on Supercapacitor Assisted Surge Absorber”, IEEE Transactions on Power Electronics (to be submitted in August, 2021).

IV.     Conference paper – S. T. Sadeeshvara Udayanga, S. Kokuhennadige, J. Fernando, N. Kularatna and D. A. Steyn-Ross, "Supercapacitor assisted surge absorber (SCASA) technique: selection of magnetic components based on permeance," 36th IEEE Applied Power Electronics Conference and Exposition (APEC), Arizona, USA, 2021, pp. 2299-2304, doi: 10.1109/APEC42165.2021.9487254.

V.      Conference paper – S. T. Sadeeshvara Udayanga, N. Kularatna and D. A. Steyn-Ross, “Permeance based model for the coupled-inductor utilized in the supercapacitor assisted surge absorber (SCASA) and its experimental validation,” 2nd IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES), Cagliari, Italy, 2020, pp. 267-272, doi: 10.1109/IESES45645.2020.9210663.

VI.     Conference paper – S. T. Sadeeshvara Udayanga, N. Kularatna and D. A. Steyn-Ross, “Investigating the impact of ferrite magnetic cores on the performance of supercapacitor assisted surge absorber (SCASA) technique,” 28th IEEE International Symposium on Industrial Electronics (ISIE), Vancouver, BC, Canada, 2019, pp. 130-135, doi: 10.1109/ISIE.2019.8781402.

VII.   Public speech – “Modelling of a RL circuit subjected to a high voltage transient and investigating the importance of inductors in surge protection”, 2nd Waikato Young Research Engineers Symposium (WYRES 2018), University of Waikato.

VIII.  Public speech – “Supercapacitor Assisted Dual-mode Surge Protector”, 2nd Waikato Young Research Engineers Symposium (WYRES 2018), University of Waikato.

IX.      Book – “A Concise Introduction to Industrial Metrology”, Godage International Book publishers, 2018, ISBN: 978-955-30-7018-0.

X.         Book – “Practical guide book No. 01 – Electronics (Op Amps, Oscillators, Digital Counters and PCB Designing)”, Godage International Book publishers, 2018, ISBN: 978-955-30-7019-7.

XI. Journal article – “An Overview of Kuhn's Model of Scientific Revolutions”, Journal of Multidisciplinary Academic Essays: In Honour of Professor Walter Marasinghe, Godage International Book publishers (in print).

XII. Monograph – “Monograph on Quantum Computing”, Physics Society, University of Sri Jayewardenepura, 2016, ISBN: 978-955-4908-54-3.

XIII. Research paper – “Literature as an inspiration for scientific thinking: An Investigation”, Second International Postgraduate Research Conference (IPRC 2015), University of Kelaniya, 2015.

XIV.  Research paper – “Social Behaviour and Spontaneous Scientific Systems: (A Comparative Study)”, 8th Annual Research Conference on the Humanities and Social Sciences (2015), Royal Asiatic Society of Sri Lanka, 2015.

XV.  Research paper – “An Analogy between Linguistics and Science: A comparative study”, First International Conference on Humanities (ICH 2015), University of Kelaniya.

XVI. Research paper – “Impact of Climate change on Tourism in Sri Lanka: An Investigation”, 6th International Conference of South and South East Asian Association for Culture and Religion (SSEASR 2015), University of Kelaniya.