Davidson, Jonathan, Dr

Dr Jonathan Davidson

PhD, MEng

School of Electrical and Electronic Engineering

Senior Lecturer

Electrical Machines and Drives Research Group

jonathan.davidson@shef.ac.uk
+44 114 222 5825

Profile: I joined the department in 2006 and studied both my MEng and PhD here, graduating in 2010 and 2015 respectively.

After a brief time as a postdoctoral researcher, I was appointed as a lecturer in the Electrical Machines and Drives group in 2015. I was made Senior Lecturer in 2022.

In both my research and teaching, I address interdisciplinary problems and themes and work with other academics from departments across the faculty.

My main research focus is on power electronics and covers two distinct but overlapping topics: electrical power conversion, and impedance sensing and system modelling. My power conversion research covers primarily resonant converters using both traditional magnetic resonant tanks and piezoelectric transformers (Grant: FPeT £600k, 2017) and lately high frequency supplies for chemical species selective reactions (Grant: Targeted waveform plasma reactor £980k, 2019). Notable successes in the field include the development of a design criterion for efficient piezoelectric transformers and a thorough exploration of the geometry requirements for transformers.

I have applied impedance sensing and system modelling to several areas. In the converters scene, it has driven the evaluation of piezoelectric transformer design and it is an enabling technology for the chemical species selection. In addition, it is the primary enabler of work on sewage sensing (Grants: Hydro Intl £200k, 2019; NBIC £50k 2020) which focusses on early detection of sediment build-up, examining the chemistry during destructive testing of electrochemical cells and producing accurate dynamic thermal models of power electronics.

My teaching focus has been on electrical engineering for interdisciplinary engineers. I was originally appointed as the electrical engineering lead to design a new programme in general engineering; I continue to lecture students in their first and second years on electrical engineering and interdisciplinary design. In 2021, I was appointed Deputy Director of Aerospace Engineering where my focus is on the design and operation of the avionics curriculum.

My teaching uses a combination of traditional visualiser note-making, pre-prepared videos, role-play group work and laboratory projects to provide students with an experience of all that engineering has to offer. I also offer final year projects to general, aerospace and electrical engineering students.

Qualifications

PhD (Electronic and Electrical Engineering), University of ��«Ӱҵ, 2015
MEng (Electronic Engineering), University of ��«Ӱҵ 2010

Research interests

Power electronic converters and drives
Piezoelectric transformer-based power supplies
Electrical sensing of water systems
Thermal modelling and temperature estimation
Pseudorandom binary sequences for system identification
Electrochemical battery modelling

Publications

Journal articles

Ansari SA, Davidson JN & Foster MP (2023) . IEEE Transactions on Industry Applications, 1-11.
Yang Z, Forrester J, Davidson JN, Foster MP & Stone DA (2023) . IEEE Transactions on Power Electronics, 1-14.
Forrester J, Davidson JN, Foster MP & Stone DA (2023) . Journal of Microelectromechanical Systems, 32(1), 103-116.
Ansari SA, Davidson JN & Foster MP (2023) . IEEE Transactions on Industrial Electronics, 70(3), 2652-2661.
Forrester J, Li L, Yang Z, Davidson JN, Sinclair DC, Reaney IM, Foster MP & Stone DA (2022) . Advanced Engineering Materials, 24(12), 2200513-2200513.
Wang Z, Wang Z, Davidson J, Foster M & Gladwin D (2022) . IET Power Electronics, 15(13), 1264-1278.
Ansari SA, Davidson JN & Foster MP (2022) . IEEE Open Journal of Power Electronics, 3, 26-35.
Ansari SA, Davidson JN & Foster MP (2022) . IEEE Transactions on Industrial Electronics, 69(9), 9145-9154.
Ansari SA, Davidson JN & Foster MP (2021) . IET Power Electronics, 14(5), 1032-1043.
Mizani A, Ansari SA, Shoulaie A, Davidson JN & Foster MP (2021) . IET Power Electronics, 14(3), 492-502.
Forrester J, Davidson JN, Foster MP & Stone DA (2021) . IEEE Transactions on Power Electronics, 36(1), 617-629.
Bugryniec PJ, Davidson DJN & Brown DSF (2020) . Journal of Power Sources, 474, 228396-228396.
Wang S, Corredor Garcia JL, Davidson J & Nichols A (2020) . Sensors (Basel, Switzerland), 20(20), E5854.
Yang Z, Forrester J, Davidson JN, Foster MP & Stone DA (2020) . IEEE Transactions on Power Electronics, 35(10), 10466-10476.
Forrester J, Li L, Davidson JN, Foster MP, Stone DA, Sinclair DC & Reaney IM (2020) . Electronics Letters, 56(7), 347-350.
Foster MP, Davidson JN, Stone DA & Yappa R (2019) . The Journal of Engineering, 2019(17), 3639-3642.
Petersen A, Stone DA, Foster MP & Davidson JN (2019) . IET Power Electronics, 12(7), 1652-1661.
Bugryniec PJ, Davidson JN, Cumming DJ & Brown SF (2019) . Journal of Power Sources, 414, 557-568.
Forrester J, Davidson JN, Foster MP, Horsley EL & Stone DA (2019) . The Journal of Engineering, 2019(17), 4163-4166.
Davidson JN, Stone DA, Foster MP & Gladwin DT (2016) . IEEE Transactions on Power Electronics, 31(4), 2709-2719.
Foster MP, Davidson JN, Horsley EL & Stone DA (2016) . IEEE TRANSACTIONS ON POWER ELECTRONICS, 31(7), 5057-5066.
Davidson J, Stone D, Foster M & Gladwin D (2015) . IEEE Transactions on Power Electronics, 31(6), 4378-4388.
Davidson JN, Stone DA & Foster MP (2015) . IEEE Transactions on Power Electronics, 30(6), 2950-2961.
Davidson JN, Stone DA, Foster MP & Gladwin DT (2014) . IEEE Transactions on Power Electronics, 29(9), 4817-4828.
Davidson JN, Stone DA & Foster MP (2014) . Electronics Letters, 50(4), 260-262.
Fairweather AJ, Stone DA & Foster MP (2013) . Journal of Power Sources, 226, 191-201.
Davidson JN, Stone DA & Foster MP (2012) . Electronics Letters, 48, 400-402.

Conference proceedings papers

Ansari SA, Davidson JN & Foster MP (2023) . PCIM Europe Conference Proceedings (pp 2411-2419)
Forrester J, Li L, Yang Z, Davidson JN, Sinclair DC, Reaney IM, Foster MP & Stone DA (2022) Comparison of BSPT and PZT piezoelectric ceramic transformers for high temperature power supplies. International Conference and Exhibition on High Temperature Electronics Network (HiTEN 2022). Oxford, 18 July 2022 - 18 July 2022.
Forrester J, Li L, Davidson J, Foster M, Stone D, Reaney I & Sinclair D (2022) . imaps-Conferences, Vol. 2022(HiTEN). Oxford, 18 July 2022 - 18 July 2022.
Forrester J, Foster MP & Davidson JN (2022) . IECON 2022 – 48th Annual Conference of the IEEE Industrial Electronics Society, 17 October 2022 - 20 October 2022.
Yang Z, Forrester J, Davidson JN, Foster MP & Stone DA (2022) . IECON 2022 – 48th Annual Conference of the IEEE Industrial Electronics Society, 17 October 2022 - 20 October 2022.
Ansari SA, Davidson JN, Foster MP & Stone DA (2022) Analysis of Test Methods for Measurement of Leakage and Magnetising Inductances in Integrated Transformers. 24th European Conference on Power Electronics and Applications, EPE 2022 ECCE Europe
O'Keeffe H, Foster M & Davidson J (2022) . Power Electronics, Machines and Drives (PEMD) 2022
Yang Z, Forrester J, Davidson JN & Foster MP (2022) . 11th International Conference on Power Electronics, Machines and Drives (PEMD 2022) (pp 357-361)
Forrester J, Li L, Yang Z, Davidson J, Foster M, Stone D, Reaney I & Sinclair D (2022) Performance Of Pzt-based Piezoelectric Transformers For Use In High-temperature Converters. Power Electronics, Machines and Drives (PEMD) 2022
Wang Y, Davidson J & Foster M (2022) Cyclic-mode Modelling Of Class EF/2 inverters Featuring a Piezoelectric Resonator As The Auxiliary Network. Power Electronics, Machines and Drives (PEMD) 2022
Arab Ansari S, Davidson J & Foster M (2022) Fully-integrated Transformer With Asymmetric Leakage Inductances for a Bidirectional Resonant Converter. Power Electronics, Machines and Drives (PEMD) 2022
Wang S, Nichols A & Davidson J (2022) . Proceedings of the IAHR World Congress (pp 1843-1851)
Forrester J, Davidson J, Foster M & Stone D (2021) . 2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe), 6 September 2021 - 10 September 2021.
Ansari SA, Davidson JN, Foster MP & Stone DA (2021) . 2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe), 6 September 2021 - 10 September 2021.
Ansari SA, Davidson JN & Foster MP (2020) . IET Conference Publications, Vol. 2020(CP766) (pp 670-675)
Yang Z, Davidson JN & Foster MP (2020) . IET Conference Publications, Vol. 2020(CP766) (pp 455-460)
Wang Z, Davidson JN & Foster MP (2020) . IET Conference Publications, Vol. 2020(CP766) (pp 261-265)
Ansari SA, Davidson JN & Foster MP (2020) . IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society, 18 October 2020 - 21 October 2020.
Bugryniec PJ, Davidson JN & Brown SF (2020) . Energy Reports, Vol. 6 (pp 189-197)
Kankanamalage RR, Foster MP & Davidson JN (2019) . 2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe), 3 September 2019 - 5 September 2019.
Forrester J, Davidson J, Foster M & Stone D (2019) . 2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe), 3 September 2019 - 5 September 2019.
Bugryniec PJ, Davidson JN & Brown SF (2018) . Energy Procedia, Vol. 151 (pp 74-78)
Forrester J, Davidson J & Foster M (2018) Effect of spurious resonant modes on the operation of radial mode piezoelectric transformers. PCIM Europe 2018; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (pp 1740-1747). Nuremberg, Germany, 5 June 2018 - 7 June 2018.
Hewitt DA, Green JE, Davidson JN, Foster MP, Stone DA & Foreman MRS (2016) Observations on Changes to Electrolytic Capacitor Electrical Properties Caused by Gamma Irradiation. IWIS 2016, 26 September 2016 - 28 September 2016.
Davidson JN, Foster MP & Stone DA (2016) Thermal Analysis Using 2-Dimensional Impedance Spectroscopy and Pseudorandom Binary Sequences. IWIS 2016
Hewitt DA, Green JE, Davidson JN, Foster MP & Stone DA (2016) Measurement of Electrical Parameters of Electrolytic Capacitors Using Real-World Drive Waveforms for State-of-Health Determination. IWIS 2016, 26 September 2016 - 28 September 2016.
Hewitt DA, Green JE, Davidson JN, Foster MP & Stone DA (2016) Electrolytic capacitor age estimation using PRBS-based Techniques. PCIM Europe 2016; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (pp 1095-1102)
Tsang C-W, Bingham C, Leach JM, Stone DA, Davidson JN & Foster MP (2016) . 8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016)
Hewitt DA, Green JE, Davidson JN, Foster MP & Stone DA (2016) . IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society, 23 October 2016 - 26 October 2016.
Davidson JN, Foster MP & Stone DA (2014) . 7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014)
Davidson JN, Stone DA, Foster MP & Gould CR (2013) . 2013 15th European Conference on Power Electronics and Applications (EPE), 2 September 2013 - 6 September 2013.
Davidson J, Stone D & Foster M (2013) Mixed PRBS technique for thermal impedance spectroscopy of power electronic systems. PCIM Europe Conference Proceedings (pp 1047-1054)
Davidson JN, Stone DA & Foster MP (2012) . Electronics Letters, Vol. 48(11) (pp 665)
Forrester J, Davidson J & Foster M () Bidirectional inverting piezo resonator-based (BIPR) converter for cell balancing applications. IEEE Energy Conversion Conference and Expo. Nashville, 29 October 2023 - 29 October 2023.

Presentations

Forrester J, Li L, Davidson J, Foster M, Stone D & Reaney I Investigation of using BSPT for ring-dot piezoelectric transformers for use in high-temperature resonant power supplies. Oxford.

Professional activities and memberships

Deputy Director, Aerospace Engineering
Electrical engineering theme liaison, General Engineering

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School of Electrical and Electronic Engineering

School of Electrical and Electronic Engineering

Dr Jonathan Davidson

Journal articles

Conference proceedings papers

Presentations

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