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Number of items: 88.

Article

Pamies Teixeira, Jorge and Valtchev, Stanimir (2012) Culture of the European Student with an Insight to the Future Needs of the Global (European) Labour Market. Proceedings of the European Politechnical University, 1, pp. 78-82.

Matos Filipe, L. and Santos, Telmo G. and Valtchev, Stanimir and Pamies Teixeira, Jorge and Miranda, R.M. (2012) New method employing the electrical impedance for monitoring mechanical damage evolution in glass-reinforced: Applications to riveted joints. Materials & Design, 42, pp. 25-31. ISSN 0261-3069. URL: http://dx.doi.org/10.1016/j.matdes.2012.05.032.

Valtchev, Stanimir and Borges, Beatriz and Brandisky, Kostadin and Klaassens, J. Ben (2009) Resonant Contactless Energy Transfer With Improved Efficiency. IEEE Transactions on Power Electronics, 24 (3), pp. 685-699. ISSN 0885-8993. URL: http://dx.doi.org/10.1109/TPEL.2008.2003188. (ISI Web of Science, Citations: 19).

Pereira, P and Valtchev, S and Pina, J and Gonçalves, A and Neves, M Ventim and Rodrigues, A L (2008) Power electronics performance in cryogenic environment: evaluation for use in HTS power devices. Journal of Physics: Conference Series, 97, 012219. eISSN 1742-6596. URL: http://dx.doi.org/10.1088/1742-6596/97/1/012219. (ISI Web of Science, Citations: 1).

Inácio, S and Inácio, D and Pina, J M and Valtchev, Stanimir and Neves, M V and Rodrigues, A L (2008) An electrical gearbox by means of pole variation for induction and superconducting disc motor. Journal of Physics: Conference Series, 97, 012221. ISSN 742-6588. eISSN 1742-6596. URL: http://dx.doi.org/10.1088/1742-6596/97/1/012221. (ISI Web of Science, Citations: 1).

Pina, J and Pereira, P and Valtchev, S and Gonçalves, A and Neves, M Ventim and Alvarez, A and Rodrigues, L (2008) A test rig for thrust force measurements of an all HTS linear synchronous motor. Journal of Physics: Conference Series, 97, 012220. eISSN 1742-6596. URL: http://dx.doi.org/10.1088/1742-6596/97/1/012220. (ISI Web of Science, Citations: 5).

vanWesenbeeck, MPN and Klaassens, JB and vonStockhausen, U and Anciola, AMD and Valtchev, SS (1997) A multiple-switch high-voltage DC-DC converter. IEEE Transactions on Industrial Electronics, IE-44 (6), pp. 780-787. ISSN 0278-0046. URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arn.... (ISI Web of Science, Citations: 5).

Valtchev, Stanimir and Klaassens, J. Ben and van Wesenbeeck, Marinus (1995) Super–Resonant Converter with Switched Resonant Inductor with PFM–PWM Control,. IEEE Transactions on Power Electronics, 10 (6), pp. 760-765. ISSN 0885-8993. URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arn....

Valtchev, Stanimir and Klaassens, J. Ben (1990) Efficient Resonant Power Conversion. IEEE Transactions on Industrial Electronics, 37 (6), pp. 490-495. ISSN 0278-0046. URL: http://dx.doi.org/10.1109/41.103453. (ISI Web of Science, Citations: 8).

Vasilev, Vasil and Batchev, Vihren and Milev, Mihail and Valtchev, Stanimir and Tatzov, Alexander (1986) An Electronic System for Rowers' Propulsion Motion Activities Studies. Problems of the Physical Culture and Sport (now: "Sport and Science Magazine") (2), pp. 13-17. ISSN 1310-3393. URL: http://www.scienceandsport.com/index.php.

Atanasov, Alexander and Valtchev, Ivan and Kolevska, Dobrinka and Valtchev, Stanimir (1978) Experimental Research of the Boron Nitride Diffusion. Elektropromishlenost i Priborostroene (now: Elektrotechnica & Elektronica) (1), pp. 31-35. ISSN ISSN 0861-4717.

Award

Valtchev, Stanimir (1997) IEEE Meritorious Paper Award for 1996. [Award].

Valtchev, Stanimir (1974) Eng. Stanimir Valtchev, Top MSc Graduate of the year 1974, Award and Engraved Wrist-Watch. [Award]. URL: http://www.tu-sofia.bg/ENG/index.html.

Conference or Workshop Item

Baikova, Elena N. and Valtchev, Stanimir and Melício, Rui and Pires, Vítor M. (2016) Electromagnetic Interference Impact of Wireless Power Transfer System on Data Wireless Channel. [Paper]. In: 7th IFIP WG 5.5/SOCOLNET Advanced Doctoral Conference on Computing, Electrical and Industrial Systems, DoCEIS 2016, April 11-13, 2016, Costa de Caparica, Portugal. URL: http://dx.doi.org/10.1007/978-3-319-31165-4_29.

Mihaylov, Kaloyan and Neves-Medeiros, Rui and Arnaudov, Rumen and Valtchev, Stanimir (2015) Investigation of the Tesla Transformer as a Device for One-Wire Power and Signaling and as a Device for Power and Signaling Through the Ground. [Paper]. In: 6th IFIP WG 5.5/SOCOLNET Doctoral Conference on Computing, Electrical and Industrial Systems, DoCEIS 2015, April 13-15, 2015, Costa de Caparica, Portugal,. URL: http://dx.doi.org/10.1007/978-3-319-16766-4_49.

Cavalheiro, David and Moll, Francesc and Valtchev, Stanimir (2015) Novel UHF Passive Rectifier with Tunnel FET Devices. [Paper]. In: 2015 IEEE Computer Society Annual Symposium on VLSI, 8-10 July 2015 , Montpellier, France . URL: http://dx.doi.org/10.1109/ISVLSI.2015.57.

Cavalheiro, David and Moll, Francesc and Valtchev, Stanimir (2015) Novel charge pump converter with Tunnel FET devices for ultra-low power energy harvesting sources. [Paper]. In: 2015 IEEE 58th International Midwest Symposium on Circuits and Systems (MWSCAS), 2-5 Aug. 2015 , Fort Collins, CO . URL: http://dx.doi.org/10.1109/MWSCAS.2015.7282034.

Cavalheiro, David and Moll, Francesc and Valtchev, Stanimir (2015) Pespectives of TFET devices in ultra-low power charge pumps for thermo-electric energy sources. [Paper]. In: 2015 IEEE International Symposium on Circuits and Systems (ISCAS), 24-27 May 2015, Lisbon. URL: http://dx.doi.org/10.1109/ISCAS.2015.7168825.

Mihaylov, Kaloyan and Valtchev, Stanimir and Arnaudov, Rumen (2015) Sensorless load monitoring and management in electric power grid through energy harvesting. [Paper]. In: 2015 International Conference on Renewable Energy Research and Applications (ICRERA), 22-25 Nov. 2015 , Palermo. URL: http://dx.doi.org/10.1109/ICRERA.2015.7418667.

Mihaylov, Kaloyan and Valtchev, Stanimir and Arnaudov, Rumen (2015) Smart microgrid sensorless load monitoring and management in TN-S and TN-C-S electrical networks. [Paper]. In: 2015 International Conference on Electrical Drives and Power Electronics (EDPE), 21-23 Sept. 2015 , Tatranska Lomnica. URL: http://dx.doi.org/10.1109/EDPE.2015.7325288.

Cavalheiro, David and Moll, Francesc and Valtchev, Stanimir (2015) Tunnel FET device characteristics for RF energy harvesting passive rectifiers. [Paper]. In: 2015 IEEE 13th International New Circuits and Systems Conference (NEWCAS), 7-10 June 2015 , Grenoble. URL: http://dx.doi.org/10.1109/NEWCAS.2015.7182102.

Habibullin, Maksim Maratovich and Pavlov, Igor Sergeevich and Mescheryakov, Viktor Nikolaevich and Valtchev, Stanimir (2014) Active Power Filter with Relay Current Regulator and Common DC Link for Compensation of Harmonic Distortion in Power Grids. [Paper]. In: 5th IFIP WG 5.5/SOCOLNET Doctoral Conference on Computing, Electrical and Industrial Systems, DoCEIS 2014, April 7-9, 2014, Costa de Caparica, Portugal. URL: http://dx.doi.org/10.1007/978-3-642-54734-8_47.

Habibullin, Maksim and Pikalov, Vladimir and Mescheryakov, Viktor and Valtchev, Stanimir (2014) Active power filter with common DC link for compensation of harmonic distortion in power grids. [Paper]. In: 2014 16th International Power Electronics and Motion Control Conference and Exposition, 21-24 Sept. 2014 , Antalya . URL: http://dx.doi.org/10.1109/EPEPEMC.2014.6980700.

Valtchev, Stanimir and Almeida, Joana and Teixeira, Jorge P. and Ben Klaassens, J. (2014) Conversion of wind-induced vibrations into electricity. [Paper]. In: 2014 IEEE 36th International Telecommunications Energy Conference (INTELEC), Sept. 28 2014-Oct. 2 2014 , Vancouver, BC . URL: http://dx.doi.org/10.1109/INTLEC.2014.6972170.

Mihaylov, Kaloyan and Arnaudov, Rumen and Valtchev, Stanimir (2014) Energy harvesting from the voltage drop in TN-S, TN-C-S and other consumer electric networks. [Paper]. In: 2014 16th International Power Electronics and Motion Control Conference and Exposition, 21-24 Sept. 2014 , Antalya . URL: http://dx.doi.org/10.1109/EPEPEMC.2014.6980699.

Neves-Medeiros, Rui and Krusteva, Anastassia and Valtchev, Stanimir and Gigov, George and Avramov, Plamen (2014) Experimental Study on Induction Heating Equipment Applied in Wireless Energy Transfer for Smart Grids. [Paper]. In: 5th IFIP WG 5.5/SOCOLNET Doctoral Conference on Computing, Electrical and Industrial Systems, DoCEIS 2014, April 7-9, 2014, Costa de Caparica, Portugal. URL: http://dx.doi.org/10.1007/978-3-642-54734-8_54.

Jorge, Luis and Valtchev, Stanimir and Coito, Fernando (2014) Resonant Power Conversion through a Saturable Reactor. [Paper]. In: 5th IFIP WG 5.5/SOCOLNET Doctoral Conference on Computing, Electrical and Industrial Systems, DoCEIS 2014, April 7-9, 2014, Costa de Caparica, Portugal. URL: http://dx.doi.org/10.1007/978-3-642-54734-8_51.

Coito, Francisco and Eleutério, António and Valtchev, Stanimir and Coito, Fernando (2014) Tracking a Mobile Robot Position Using Vision and Inertial Sensor. [Paper]. In: 5th IFIP WG 5.5/SOCOLNET Doctoral Conference on Computing, Electrical and Industrial Systems, DoCEIS 2014, April 7-9, 2014, Costa de Caparica, Portugal. URL: http://dx.doi.org/10.1007/978-3-642-54734-8_23.

Valtchev, Stanimir and Neves-Medeiros, Rui and Krusteva, Anastassia and Gigov, George and Avramov, Plamen (2014) A wireless energy transceiver based on induction heating equipment. [Paper]. In: 2014 16th International Power Electronics and Motion Control Conference and Exposition, 21-24 Sept. 2014 , Antalya . URL: http://dx.doi.org/10.1109/EPEPEMC.2014.6980642.

Cavalheiro, D and Silva, A.C. and Valtchev, S and Teixeira, J.P. and Vassilenko, V. (2012) Energy Harvested from Respiratory Effort. [Paper]. In: 5th International Joint Conference on Biomedical Engineering Systems and Technology- BIOSTEC-2012.

Valtchev, Stanimir and Jorge, Luis and Craciunescu, Aurelian and Brandisky, Kostadin (2012) High frequency wireless energy for improving the EV autonomy. [Paper]. In: International Symposium on Electric Vehicle and 4-th Annual Conference of Polish Society for Environment Friendly Vehicles.

Matos, Filipe and Santos, Telmo and Valtchev, Stanimir and Teixeira, Jorge and Miranda, R.M. (2012) New Methodology for Structural Health Monitoring of GLARE in Ships. [Paper]. In: 15th International Conference on Experimental Mechanics (ICEM15).

Matos, Pedro and Valtchev, Stanimir and Almeida, Geraldo and Matos, Diogo and Lourenço, Pedro (2012) R&D of an thermoelectric system - An innovative Linear Fresnel Reflector. [Paper]. In: MATCHMAKING RESEARCH Conference, 2012, Guarda .

Valtchev, Stanimir and Mascarenhas, Manuel and Craciunescu, Aurelian and Baltateanu, Adrian (2012) Survey on EV electrical drive train with induction motor. [Paper]. In: International Symposium on Electric Vehicles Warsaw.

Medeiros, Rui and Valtchev, Stanimir and Valtchev, Svilen (2012) The Efficient and Stable Charging of Electric Vehicle Batteries: Simplified Instantaneous Regulation. [Paper]. In: Doctoral Conference on Computing, Electrical and Industrial Systems - DoCEIS 2012, February 27-29, 2012, Costa de Caparica, Portugal. URL: http://dx.doi.org/10.1007/978-3-642-28255-3_40.

Valtchev, Stanimir and Valtchev, Svilen (2012) Experimental study of the energy portions control in Series Resonant Converters. [Paper]. In: 2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM), 24-26 May 2012, Brasov. URL: http://dx.doi.org/10.1109/OPTIM.2012.6231994.

Valtchev, Stanimir and Vassilenko, V. and Cavalheiro, D and Jorge, Teixeira (2011) Energy Harvesting and the Human Health. [Paper]. In: First International Conference of Education, Science and Inovations.

Mendes Lopes, J and Ramos, C and Pina, L and Reis, F and Coelho, S and Wemans, J and Sorasio, G and Valtchev, S and Pereira, N (2011) Medium concentration system HSUN: demonstration results and application of diverse silicon cells. [Paper]. In: 26th European Photovoltaic Solar Energy Conference and Exhibition (PVSEC).

Coelho, S and Cardoso, B and Pina, L and Pereira, NA and Valtchev, S (2011) Pre-Certification of HSUN® Module According To IEC 62108. [Paper]. In: 26th European Photovoltaic Solar Energy Conference and Exhibition (PVSEC).

Antchev, Mihail Hr. and Petkova, Mariya P. and Antchev, Hristo M. and Gourgoulitsov, Vanjo T. and Valtchev, Stanimir (2011) Study of a single-phase series active power filter with hysteresis control. [Paper]. In: 11th International Conference on Electrical Power Quality and Utilisation, 17-19 Oct. 2011, Lisbon. URL: http://dx.doi.org/10.1109/EPQU.2011.6128921.

Todorov, Georgi and Todorov, Todor and Ivanov, Ivan and Valtchev, Stanimir and Klaassens, Ben (2011) Tuning techniques for kinetic MEMS energy harvesters. [Paper]. In: 2011 IEEE 33rd International Telecommunications Energy Conference (INTELEC), 9-13 Oct. 2011, Amsterdam. URL: http://dx.doi.org/10.1109/INTLEC.2011.6099874.

Amaro, Nuno and Valtchev, Stanimir (2011) An UHF Wireless Power Harvesting System - Analysis and Design. [Paper]. In: 10th International Conference on Applied Electromagnetics - PES 2011, Nis, Serbia, September 2011.

Valtchev, Stanimir and Medeiros, Rui and Valtchev, Svilen and Klaassens, Ben (2011) An instantaneous regulation for the wired and wireless super-resonant converters. [Paper]. In: 2011 IEEE 33rd International Telecommunications Energy Conference (INTELEC), 9-13 Oct. 2011, Amsterdam. URL: http://dx.doi.org/10.1109/INTLEC.2011.6099875.

Valtchev, Stanimir (2010) Resonant Effects Applied in Power Conversion for Contactless Energy Transfer and Energy Harvesting. [Lecture]. In: Invited Seminar (Lecture) of S. Valtchev, 22-30 August 2010, Tokyo City University, Tokyo, Japan.

Valtchev, Stanimir (2010) Resonant Effects Applied in Power Conversion for Contactless Energy Transfer. [UNSPECIFIED]. In: UNSPECIFIED. (Unpublished).

Valtchev, Stanimir and Valtchev, Svilen (2010) Improved strategy for an instantaneous super-resonant converter regulation. [Paper]. In: 12th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM), 20-22 May 2010, Brasov, Romania. URL: http://dx.doi.org/10.1109/OPTIM.2010.5510484. (ISI Web of Science, Citations: 1).

Valtchev, Stanimir and Pamies Teixeira, Jorge (2010) The Charging of Hybrid and Electrical Vehicles’ Batteries: Contactless Energy Transfer as the key to the future. [Keynote]. In: 2010 International Symposium on Electric Vehicle and 2-nd Annual Conference of Polish Society for Environment Friendly Vehicles, 6-11 July 2010, Warsaw, Poland.

Pamies Teixeira, Jorge and Valtchev, Stanimir (2010) An Insight to Potential Actions Facing Future Needs of Electric and Hybrid Electric Vehicles. [Keynote]. In: 2010 International Symposium on Electric Vehicle and 2-nd Annual Conference of Polish Society for Environment Friendly Vehicles, 6-11 July 2010, Warsaw, Poland.

Valtchev, Stanimir (2010) Resonant power conversion in contactless battery charging for Electric Vehicle / Hybrid Electric Vehicle. [Paper]. In: 2010 International Symposium on Electric Vehicle and 2-nd Annual Conference of Polish Society for Environment Friendly Vehicles, 6-11 July 2010, Warsaw, Poland.

Valtchev, Stanimir (2009) Battery chargers and battery management for the future electric vehicles. [Speech]. In: Cooperation work between S. Valtchev and TU Delft, 12 July 2009 - 16 September 2009, TU Delft, The Netherlands. (Unpublished).

Valtchev, Stanimir and Miletiev, Rosen and Arnaoudov, Rumen and Valtchev, Svilen (2009) Control strategy for efficient operation of super-resonant SLSR (contactless) converters. [Paper]. In: XLIV INTERNATIONAL SCIENTIFIC CONFERENCE ON INFORMATION, COMMUNICATION AND ENERGY SYSTEMS AND TECHNOLOGIES (before 1990 was: "Day of the Radio Conference"), June, 2009, Veliko Turnovo, Bulgaria. URL: http://www.tu-sofia.bg/ENG/fktt/ICEST-09/icest_200....

Inácio, D and Inácio, J. A. and Pina, J. and Valtchev, S and Neves, M. and Martins, J. and Rodrigues, A. (2009) Conventional and HTS Disc motor with pole variation control. [Paper]. In: 2nd International Conference on Power Engineering, Energy and Electrical Drives (POWERENG'2009), 18-20 Mar 2009, Caparica. (ISI Web of Science).

Sousa, P. and Valtchev, Stanimir and Neves, Mário and Rodrigues, A. (2009) A New Open-Loop Control Method for Stepping Motor Driving. [Paper]. In: 2nd International Conference on Power Engineering, Energy and Electrical Drives (POWERENG'2009), 18-20 Mar 2009, Caparica. URL: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumb.... (ISI Web of Science).

Valtchev, Stanimir (2008) Contactless Power Transfer. [Lecture]. In: Seminar of S.Valtchev on Contactless Power Transfer, 28.07.2008 - 3.08.2008, TU Delft, The Netherlands. (Unpublished).

Pereira, Pedro and Valtchev, S and Pina, João and Gonçalves, Anabela and Neves, Mário and Rodrigues, Amadeu (2007) Power Electronics Performance in Cryogenic Environment: Evaluation for Use in HTS Power Devices. [Paper]. In: 8th European Conference on Applied Superconductivity (EUCAS), 16-20 September 2007, Brussels, Belgium.

Inácio, S and Inácio, D and Pina, J. and Valtchev, S and Neves, M Ventim and Rodrigues, A. (2007) An Electrical Gearbox by means of pole variation for induction and superconducting disc motor. [Paper]. In: 8th European Conference on Applied Superconductivity (EUCAS), 16-20 September 2007, Brussels, Belgium.

Pina, João and Caracaleanu, C. and Gonçalves, A. and Pereira, Pedro and Valtchev, S and Neves, Mário and Rodrigues, A. (2007) High Performance, Environment Friendly, Modular and Fault Tolerant Renewable Energy Microgrid. [Paper]. In: 12th International Energy Conference & Exhibition (ENERGEX2007), 26-30 Nov 2007, Singapore.

Steve, Inácio and Pina, João and Valtchev, Stanimir and Neves, Mário and Rodrigues, Amadeu (2007) Topology of an Electrical Gearbox with Variable Poles for Induction and Superconducting Disc Motors. [Other]. In: X Portuguese-Spanish Congress in Electrical Engineering, 05th -07th July 2007, Madeira.

Pina, João and Pereira, Pedro and Valtchev, S and Gonçalves, A. and Neves, Mário and Rodrigues, A. (2007) A test rig for thrust force measurements f an all HTS linear synchronous motor. [Paper]. In: 8th European Conference on Applied Superconductivity (EUCAS), 16-20 September 2007, Brussels, Belgium.

Valtchev, Stanimir and Brandisky, Kostadin and Borges, Beatriz and Klaassens, J. Ben (2005) Efficient Resonant Inductive Coupling Energy Transfer Using New Magnetic and Design Criteria. [Paper]. In: IEEE 36th Power Electronics Specialists Conference, PESC '05, June 2005, Recife, Brasil. URL: http://dx.doi.org/10.1109/PESC.2005.1581796. (ISI Web of Science).

Valtchev, Stanimir and Brandisky, Kostadin and Borges, Beatriz and Klaassens, J. Ben (2005) Magnetic and Design Criteria for Inductive Coupling Energy Transfer. [Paper]. In: 5th Conference on Telecommunications CONFTELE, 2005, Tomar, Portugal. (ISI Web of Science).

Valtchev, Stanimir and Borges, Beatriz and Klaassens, J. Ben (2002) Contactless Energy Transmission with Optimal Efficiency. [Paper]. In: IEEE 28th Annual Conference of the Industrial Electronics Society IECON 02, 5-8 Nov. 2002, Sevilla, Spain. URL: http://www.ieeexplore.ieee.org/stamp/stamp.jsp?tp=.... (ISI Web of Science).

Valtchev, Stanimir and Borges, Beatriz and Klaassens, J. Ben (2001) Series Resonant Converter Applied to Contactless Energy Transmission. [Paper]. In: 3rd Conference on Telecommunications CONFTELE, April 2001, Figueira da Foz, Portugal.

Volsky, S. and Lomonova, Elena and Klaassens, J. Ben and Valtchev, Stanimir (1998) A Basic Computer–Aided Course on Dynamic Processes in Mechatronic Systems for Aeronautical Engineers. [Paper]. In: 9th Annual Conference of the European Association for Education in Electrical and Information Engineering (EAEEIE), May 1998, Lisbon, Portugal.

Beirante, J. and Borges, Beatriz and Valtchev, Stanimir (1997) Análise Teórica, Simulação, Optimização e Caracterização Experimental do Conversor CC/CC em Ponte Completa, com Modulação de Fase, Comutação no Zero da Tensão e Bobina de Coeficiente de Auto–indução Variável. [Paper]. In: Ia Conferencia de Telecomunicações CONFTELE, Abril, 1997, Aveiro, Portugal.

Beirante, J. and Borges, Beatriz and Valtchev, Stanimir (1997) Design Improvement and Experimental Characterization of the Full Bridge, Faze Shift, Zero Voltage Switched DC/DC Converter with Secondary Clamped Inductor. [Paper]. In: European Power Electronics Conference EPE´97, 1997, Trondheim, Norway.

Valtchev, Stanimir and Borges, Beatriz (1995) Improved Full–Bridge Zero–Voltage–Switched Phase–Shift DC–DC Converter Using a Secondary–Clamped Inductor. [Paper]. In: Proceedings of the 1995 IEEE Industrial Electronics, Control, and Instrumentation IECON 21st International Conference, 06 Nov 1995-10 Nov 1995, Orlando, FL (USA). URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arn....

Valtchev, S and Borges, BV and Anunciada, V (1995) LkW/250 kHz full bridge zero voltage switched phase shift DC-DC converter with improved efficiency. [Paper]. In: 17th International Telecommunications Energy Conference, INTELEC '95, 29 Oct 1995-01 Nov 1995, The Hague, the Netherlands. URL: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumb....

vanWesenbeeck, MPN and Klaassens, JB and vonStockhausen, U and Ancíola, AMD and Valtchev, SS (1995) A multiple-switch high-voltage DC-DC converter. [Paper]. In: 17th Telecommunications Energy Conference, INTELEC '95, 29 Oct 1995-01 Nov 1995, The Hague, the Netherlands. URL: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumb.... (ISI Web of Science).

Valtchev, Stanimir (1995) Super-resonant power converter operation in soft-switching mode. [Lecture]. In: Seminar of S.Valtchev on the new PhD thesis chapter, TU Sofia, Bulgaria. (Unpublished).

Valtchev, Stanimir (1992) High Efficiency Resonant Power Conversion. [Lecture]. In: High Efficiency Resonant Power Conversion, 24-04-1992, Lisbon, Instituto Superior Tecnico. URL: http://pessoa.fct.unl.pt/ssv/Seminar_Valtchev.pdf.

Valtchev, Stanimir (1990) Some Regulation Characteristics of Pulse–Width Modulated Series Resonant Power Conversion. [Paper]. In: 6th Conference on Power Electronics and Motion Control PEMC'90, 1–3 Oct. 1990, Budapest, Hungary.

Valtchev, Stanimir and Klaassens, J. Ben (1990) High Efficiency Resonant Power Conversion. [Paper]. In: 1st USSR Conference (with international participation) of Power Electronics Systems and Low–Power Converters Equipment (SES i UMPT), Sept. 1990, Alma Ata Kazakhstan (USSR).

Tatzov, Alexander and Dimitrov, D. and Borisov, T. and Botchev, R. and Pashov, P. and Petrov, P. and Petrov, D. and Valtchev, Stanimir (1989) Equipment for Measuring the Road–Tyre Cohesion. [Paper]. In: 6th National Congress of Mechanics, 25-30 Sept. 1989, Varna, Bulgaria.

Valtchev, Stanimir (1989) Some Properties of the Transistor Series Resonant Power Convertors. [Paper]. In: The Day of the Radio Conference, 5–6 May 1989, Sofia, Bulgaria.

Valtchev, Stanimir and Krustev, Georgi (1988) Behavior of the Series Resonant Energy Converter at Frequencies Differing from the Resonant One. [Paper]. In: The Day of the Radio Conference, 6–7 May 1988, Sofia, Bulgaria.

Valtchev, Stanimir and Krustev, Georgi (1988) Experimental Results of the MOS Transistor Series Resonant Energy Converter Exploration. [Paper]. In: The Day of the Radio Conference, 6–7 May 1988, Sofia.

Valtchev, Stanimir and Krustev, Georgi and Popov, Evgeni (1986) Power Transistor Pulse Generator for Technological Purposes. [Paper]. In: Jubileum Scientific Session of VMEI–Gabrovo, Power Electronics Section, 7–8 Oct. 1986, Gabrovo, Bulgaria.

Vasilev, Vasil and Valtchev, Stanimir (1984) PWM Servosystem for DC Motors Control. [Paper]. In: Scientific and Technological Conference "Industrial Robots’84", 15–16 June 1984, Stara Zagora, Bulgaria.

Natchev, Branimir and Valtchev, Stanimir (1983) Control System for Power Converter of DC to Sinusoidal AC Voltage. [Paper]. In: National Conference (with international participation) of Power Electronics SILEKTRON’83, 28–29 Oct. 1983, Sofia, Bulgaria.

Natchev, Branimir and Valtchev, Stanimir (1983) Driver Circuit for Power Transistor Switches. [Paper]. In: National Conference (with international participation) of Power Electronics SILEKTRON’83, 28–29 Oct. 1983, Sofia, Bulgaria.

Vasilev, Vasil and Natchev, Branimir and Valtchev, Stanimir (1983) Power Converter of DC to Sinusoidal AC Voltage for Robotic Purposes. [Paper]. In: Scientific Session VMEI’83, Section Robotics, 12–14 Oct.1983, Sofia, Bulgaria.

Monograph

Valtchev, Stanimir (1980) Power supply for 2 kW / 25 kV CO2 gas laser. Project Report. Ministry of Science and Technology Bulgaria / USSR (limited access). (Unpublished).

Thesis

Bonifácio, Paulo (2010) Seguidor fotovoltaico: uma variação do P&O - Simulação e Prototipagem. Valtchev, Stanimir (supervisor). Masters thesis, FCT-UNL.

Sousa, Pedro (2009) Accionamento de um Motor Passo a Passo com Velocidade e Direcção Controladas e com Binário de Arranque Aumentado. Valtchev, Stanimir and Neves, Mário (supervisors). Masters thesis, FCT-UNL.

Inácio, Steve (2008) Projecto de uma caixa de velocidades eléctrica por meio da variação do número de pólos para motores em disco de rotor em alumínio e em materiais supercondutores de alta temperatura (SAT). Neves, Mário and Pina, João and Valtchev, Stanimir (supervisors). Masters thesis, FCT-UNL.

Valtchev, Stanimir (2008) Series Resonant Power Converter for Contactless Energy Transfer with Improved Efficiency. Borges, Beatriz and Klaassens, J. Ben (supervisors). PhD thesis, UTL-IST (Portugal), TU Delft (the Netherlands). URL: http://resolver.tudelft.nl/uuid:10c8de50-d48a-416b....

Wahjudi, Andre (1993) Modelvorming en simulatie van een super-resonante converter met een hoogspanningstransformator. Klaassens, J. Ben and Valtchev, Stanimir and van Wesenbeeck, M.P.N. (supervisors). Masters thesis, TU Delft.

This list was generated on Sat Sep 23 02:12:37 2017 GMT Daylight Time.