Stanimir (Stan) Valtchev (IEEE Senior Member’08) was awarded as the best graduate (1974) of Semiconductor and Electronics Technology of Technical University Sofia (TUS). He serviced military radars later and got the rank of air force captain of reserve. He was Auxiliary Director of the Centre of Robotics of TUS (later it became a faculty of robotics). In 1987 he worked in TU Delft as assistant professor. He returned to Bulgaria in TUS teaching Power Supplies and Converters, Vice Dean of TUS for all international students. After 1994 he teaches Power Electronics, Renewable Energy, and Instrumentation, in Portugal. From Bulgaria he is elected Invited Full Professor of Burgas Free University (since 2012) and Associate Professor of TUS (since 2018). He is now teaching and consulting in Portugal, Netherlands, and China. Based on his versatile experience, his research includes HF resonant power converters, energy harvesting, renewable energy processing, wireless energy transfer, motor drives and generation, electric vehicles, energy storage, smart DC grids, tunnel FETs and biosensors. He was the General Chair of the IEEE-PEMC´2016 conference and co-chair of several other conferences: IEEE ACED since 2015, IEEE GPECOM 2019 e 2020, IEEE SUMMA 2019 e 2020. He is on the organizing committee of many more, e.g. ICEST, OPTIM, INTELEC, EPQU, ICRERA, ISIE, SPEEDAM, IECON, PEMC, etc. He is on the evaluation (advisory) board of the Skoltech University, Moscow, Russian Federation. He is on the advisory board of the Beijing Jiao Tong University, especially for the School of the Renewable Energies. He was a contracted consultant of the Holland Signaal-SSP, now THALES Group in the Netherlands (1995-2003) for resonant and contactless power transfer, and of INESC (2000–2002). Since 2008 he is a Researcher in CTS of UNINOVA of FCT–UNL. He presented many seminars: in TU Delft, in KAIST (Republic Korea), Tokyo University and Tokyo City University (Japan). He was a Keynote Speaker for International Symposium on EV in Warsaw (2010), Pernik, INTELEC industry seminar (each April), Keynote speaker at the Workshop on Costs, Benefits and Impact Assessment of Smart Grids (2014) in Turkey, Keynote speaker at the 12th International Conference on Development and Application Systems (2014) in Romania, Invited speaker at the 12th International Conference on Applied Electromagnetics in Nis, Serbia (2015), Invited speaker at the ACED, Ekaterinburg, Russia (2015 and the next), Invited speaker at the International Scientific Conference of Burgas Free University (2016), Keynote speaker at the National Moscow Power Engineering Institute (MEI) Conference in 2017. He was a Keynote speaker at IEEE GPECOM 2019 and 2020 in Turkey, Keynote speaker at IEEE SUMMA (2019, 2020) in Russia, Keynote speaker at the 15th International Conference DAS, in 2020, in Romania, and many more. S. Valtchev obtained many awards, e.g. with his students for the contest “New Idea”, in 2009 the 1st and 4th place. He had also IEEE Awards for organizing conferences and for Meritorious IEEE Transactions paper (1997). Collaborated in many international projects, e.g. in DIEMIGO (De Integratie van Elektrische Mobiliteit In de Gebouwde Omgeving), in DERri (Distributed Energy Resources Research Infrastructure), in some financed by FP7 or by Russian and Bulgarian universities. Similarly, projects were developed with IST of UL, and other Portuguese universities. He was a member of the jury of many MSc degrees and several PhD degrees defences in Portugal, Spain, Bulgaria and Russia. He was a panel member of many IAPMEI QREN and other projects. He promoted several PhD students to their defence and has several Post Doc students. He is editor of several journals in many countries. He is the Chair of the Technical Sub-Committee on Intelligent Motor Drive, in IES of IEEE, in the Technical Committee of Sensors and Actuators.