A multiple-switch high-voltage DC-DC converter. - M. P. N. van Wesenbeeck; J. Ben Klaasens; Ulrich von Stockhausen; A. Munoz de Morales Anciola; Stanimir Stoyanov Valtchev (IEEE Trans. Ind. Electron., 1997)

Energy Harvested from Respiratory Effort. - David Cavalheiro; Ana Catarina Silva; Stanimir Stoyanov Valtchev; J. Pamies-Teixeira; Valentina Vassilenko (BIODEVICES, 2012)

The Efficient and Stable Charging of Electric Vehicle Batteries: Simplified Instantaneous Regulation. - Rui Medeiros; Stanimir Stoyanov Valtchev; Svilen S. Valtchev (DoCEIS, 2012)

Tracking a Mobile Robot Position Using Vision and Inertial Sensor. - Francisco Coito; António Eleutério; Stanimir Stoyanov Valtchev; Fernando J. V. Coito (DoCEIS, 2014)

Active Power Filter with Relay Current Regulator and Common DC Link for Compensation of Harmonic Distortion in Power Grids. - Maksim Maratovich Habibullin; Igor Sergeevich Pavlov; Viktor Nikolaevich Mescheryakov; Stanimir Stoyanov Valtchev (DoCEIS, 2014)

Resonant Power Conversion through a Saturable Reactor. - Luis Jorge; Stanimir Stoyanov Valtchev; Fernando J. V. Coito (DoCEIS, 2014)

Experimental Study on Induction Heating Equipment Applied in Wireless Energy Transfer for Smart Grids. - Rui Neves-Medeiros; Anastassia Krusteva; Stanimir Stoyanov Valtchev; George Gigov; Plamen Avramov (DoCEIS, 2014)

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. - Kaloyan Mihaylov; Rui Neves-Medeiros; Rumen Arnaudov; Stanimir Stoyanov Valtchev (DoCEIS, 2015)

Pespectives of TFET devices in ultra-low power charge pumps for thermo-electric energy sources. - David Cavalheiro; Francesc Moll; Stanimir Stoyanov Valtchev (ISCAS, 2015)

Novel UHF Passive Rectifier with Tunnel FET Devices. - David Cavalheiro; Francesc Moll; Stanimir Stoyanov Valtchev (ISVLSI, 2015)

Novel charge pump converter with Tunnel FET devices for ultra-low power energy harvesting sources. - David Cavalheiro; Francesc Moll; Stanimir Stoyanov Valtchev (MWSCAS, 2015)

Tunnel FET device characteristics for RF energy harvesting passive rectifiers. - David Cavalheiro; Francesc Moll; Stanimir Stoyanov Valtchev (NEWCAS, 2015)

Electromagnetic Interference Impact of Wireless Power Transfer System on Data Wireless Channel. - Elena N. Baikova; Stanimir Stoyanov Valtchev; Rui Melício; Vítor M. Pires (DoCEIS, 2016)

A battery-less, self-sustaining RF energy harvesting circuit with TFETs for µW power applications. - David Cavalheiro; Francesc Moll; Stanimir Stoyanov Valtchev (NEWCAS, 2016)

Solar Thermoelectric System with Biomass Back-up. - José Teixeira Gonçalves; Cristina Inês Camus; Stanimir Stoyanov Valtchev (DoCEIS, 2017)

Single-Phase Wireless Power Transfer System Controlled by Magnetic Core Reactors at Transmitter and Receiver. - Luis Romba; Stanimir Stoyanov Valtchev; Rui Melício (DoCEIS, 2017)

Insights Into Tunnel FET-Based Charge Pumps and Rectifiers for Energy Harvesting Applications. - David Cavalheiro; Francesc Moll; Stanimir Stoyanov Valtchev (IEEE Trans. Very Large Scale Integr. Syst., 2017)

Simulation and Experiment on Electric Field Emissions Generated by Wireless Energy Transfer. - Elena N. Baikova; Luis Romba; Rui Melício; Stanimir Stoyanov Valtchev (DoCEIS, 2018)

Wireless Battery Charger for EV with Circular or Planar Coils: Comparison. - Luis Romba; Elena N. Baikova; C. Borges; Rui Melício; Stanimir Stoyanov Valtchev (DoCEIS, 2018)

Frequency Tuning of the Resonant Wireless Energy Transfer System. - Elena N. Baikova; Alexandre V. Baikov; Stanimir Stoyanov Valtchev; Rui Melício (IECON, 2019)

DC electrical drive Power-Hardware-in-the-Loop system. - Mikhail Mudrov; Anatoliy Ziuzev; Konstantin Nesterov; Stanimir Stoyanov Valtchev (IECON, 2019)

New Analytical Formulas for Coupling Coefficient of Two Inductively Coupled Ring Coils in Inductive Wireless Power Transfer System. - Mohammed Al-Saadi; Stanimir Stoyanov Valtchev; José Gonçalves; Aurelian Craciunescu (GreeNets, 2020)

Study of Electric Field Emissions in Wireless Energy Transfer. - Elena N. Baikova; Rui Melício; Stanimir Stoyanov Valtchev (DoCEIS, 2020)

Multi-sensor Synchronization Model for Sensor Fusion Applied to Innovative Cardiovascular Markers. - Paulo Bonifacio; Valentina Vassilenko; Andreia Serrano; Filipa Cardoso; Stanimir Stoyanov Valtchev (DoCEIS, 2020)

Preliminary Design of a Mid-Range Superconducting Wireless Power Transfer System for Magnetic Levitation Vehicles: Application to the MagLev-Cobra. - Cláudio Mendes; Luís Romba Jorge; Roberto Oliveira 005; João Murta Pina; Richard Magdalena Stephan; Stanimir Stoyanov Valtchev (ISIE, 2021)

Design and Validation of an Inductive Power Transfer System with Zero Phase Angle Detection Algorithm. - Nicola Campagna; Vincenzo Castiglia; Rosario Miceli; Stanimir Stoyanov Valtchev (IECON, 2022)