All Stories

  1. Extended Soft-Switching Modulation for Isolated Single-Phase AC–DC Converter with Integrated Power Stage

    Article • October 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  2. Nonlinear control technique for enhanced synchronization systems: Improving dynamics and noise rejection of phase-locked loops

    Article • ISA Transactions, October 2025, Elsevier

    Dr Fernando Lessa Tofoli

  3. Non-Isolated High Step-Up DC-DC Interleaved Boost Converter Based on Coupled Inductors and Voltage Multiplier Cells

    Article • Energies, September 2025, MDPI AG

    Dr Fernando Lessa Tofoli

  4. Distributed Multi-Agent Energy Management for Microgrids in a Co-Simulation Framework

    Article • Energies, August 2025, MDPI AG

    Dr Fernando Lessa Tofoli

  5. Nonisolated High Step‐Up DC‐DC Ćuk Converter Based on Coupled Inductors

    Article • International Journal of Circuit Theory and Applications, June 2025, Wiley

    Dr Fernando Lessa Tofoli

  6. Influence of low-voltage ride-through control techniques on the thermal behavior of power converters applied to wind energy conversion systems based on the doubly-fed induction generator

    Article • Electric Power Systems Research, February 2025, Elsevier

    Dr Fernando Lessa Tofoli

  7. Site suitability analysis for green hydrogen production using multi-criteria decision-making methods: A case study in the state of Ceará, Brazil

    Article • International Journal of Hydrogen Energy, January 2025, Elsevier

    Dr Fernando Lessa Tofoli

  8. Techno-economic analysis of green hydrogen generation from combined wind and photovoltaic systems based on hourly temporal correlation

    Article • International Journal of Hydrogen Energy, January 2025, Elsevier

    Dr Fernando Lessa Tofoli

  9. Family of Non-Isolated High Step-Up DC-DC Converters Based on The Three-State Switching Cell and Coupled Inductors

    Article • IEEE Journal of Emerging and Selected Topics in Power Electronics, January 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  10. Magnetic Integration Applied to an Isolated Single-Stage AC–DC Converter

    Article • IEEE Open Journal of Power Electronics, January 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  11. Accurate and Fast Convergence Technique for Enhanced Efficiency and Performance of Photovoltaic Systems

    Article • IEEE Access, January 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  12. Switched-Capacitor-Based Hybrid Resonant Bidirectional Buck–Boost Converter for Improving Energy Harvesting in Photovoltaic Systems

    Article • Sustainability, November 2024, MDPI AG

    Dr Fernando Lessa Tofoli

  13. Fault-Tolerant Control for Quadcopters Under Actuator and Sensor Faults

    Article • Sensors, November 2024, MDPI AG

    Dr Fernando Lessa Tofoli

  14. Non-intrusive demand response management strategy to mitigate the impacts of residential electric vehicle charging on distribution systems

    Article • Electric Power Systems Research, October 2024, Elsevier

    Dr Fernando Lessa Tofoli

  15. Stability analysis and application of a synchronverter-based control approach to DFIG-based wind energy conversion systems

    Article • Electric Power Systems Research, July 2024, Elsevier

    Dr Fernando Lessa Tofoli

  16. Modelling, design and control of power electronic converters for smart grids and electric vehicle applications

    Article • IET Power Electronics, June 2024, the Institution of Engineering and Technology (the IET)

    Dr Fernando Lessa Tofoli

  17. Reliability assessment applied in the design of an industrial substation in the context of Industry 4.0

    Article • Electric Power Systems Research, June 2024, Elsevier

    Dr Fernando Lessa Tofoli

  18. Generalized Pulse Width Modulation Switch Model for Converters Based on the Multistate Switching Cell in Discontinuous Conduction Mode

    Article • Sensors, May 2024, MDPI AG

    Dr Fernando Lessa Tofoli

  19. Review, Properties, and Synthesis of Single-Switch Non-Isolated DC-DC Converters with a Wide Conversion Range

    Article • Sensors, April 2024, MDPI AG

    Dr Fernando Lessa Tofoli

  20. Unified Small-Signal Model for DC–DC Converters Based on the Four-State Switching Cell in Discontinuous Conduction Mode

    Article • IEEE Journal of Emerging and Selected Topics in Power Electronics, April 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  21. Step-Up/Step-Down Switched Capacitor Direct AC–AC Converter

    Article • IEEE Journal of Emerging and Selected Topics in Power Electronics, January 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  22. Magnetic Integration in A Soft-Switching Three-Phase Isolated DC-DC Converter

    Article • November 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  23. Novel Control Approach for Resonant Class-DE Inverters Applied in Wireless Power Transfer Systems

    Article • Energies, October 2023, MDPI AG

    Dr Fernando Lessa Tofoli

  24. Co-simulation platform for the assessment of transactive energy systems

    Article • Electric Power Systems Research, October 2023, Elsevier

    Dr Fernando Lessa Tofoli

  25. Unified small‐signal model for DC‐DC converters based on the three‐state switching cell operating in discontinuous conduction mode

    Article • International Journal of Circuit Theory and Applications, September 2023, Wiley

    Dr Fernando Lessa Tofoli

  26. Modified Active-Clamped Current-Fed DC–DC Push–Pull Converter

    Article • Energies, August 2023, MDPI AG

    Dr Fernando Lessa Tofoli

  27. Distributed control based on the consensus algorithm for the efficient charging of electric vehicles

    Article • Electric Power Systems Research, May 2023, Elsevier

    Dr Fernando Lessa Tofoli

  28. Three‐phase bidirectional isolated LLC resonant DC‐DC converter for DC microgrid applications

    Article • International Journal of Circuit Theory and Applications, April 2023, Wiley

    Dr Fernando Lessa Tofoli

  29. Novel Isolated Multiple-Input, Multiple-Output Multidirectional Converter for Modern Low-Voltage DC Power Distribution Architectures

    Article • Sustainability, March 2023, MDPI AG

    Dr Fernando Lessa Tofoli

  30. Smart Protection System for Microgrids Based on an Adaptive Algorithm

    Article • Energies, February 2023, MDPI AG

    Dr Fernando Lessa Tofoli, Professor Giovanni Cordeiro Barroso

  31. Synchronverter-based frequency control technique applied in wind energy conversion systems based on the doubly-fed induction generator

    Article • Electric Power Systems Research, January 2023, Elsevier

    Dr Fernando Lessa Tofoli

  32. Adaptive fuzzy directional bat algorithm for the optimal coordination of protection systems based on directional overcurrent relays

    Article • Electric Power Systems Research, October 2022, Elsevier

    Dr Fernando Lessa Tofoli

  33. Family of Non-Isolated High Step-Up DC–DC Converters Based on the Multi-State Switching Cell

    Article • IEEE Journal of Emerging and Selected Topics in Power Electronics, October 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  34. Family of single‐phase high‐frequency isolated AC–AC converters

    Article • International Journal of Circuit Theory and Applications, September 2022, Wiley

    Dr Fernando Lessa Tofoli

  35. Wheel Slip Control Applied to an Electric Tractor for Improving Tractive Efficiency and Reducing Energy Consumption

    Article • Sensors, June 2022, MDPI AG

    Dr Fernando Lessa Tofoli

  36. Single-Phase Isolated AC-AC Converters Based on the Dual Active Bridge Converter

    Article • IEEE Industrial Electronics Magazine, June 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  37. Four-Port, Single-Stage, Multidirectional AC–AC Converter for Solid-State Transformer Applications

    Article • IEEE Industrial Electronics Magazine, May 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  38. Nonisolated high step‐up DC‐DC interleaved SEPIC converter based on voltage multiplier cells

    Article • International Journal of Circuit Theory and Applications, April 2022, Wiley

    Dr Fernando Lessa Tofoli

  39. Thermal Analysis of Power Converters for DFIG-Based Wind Energy Conversion Systems during Voltage Sags

    Article • Energies, April 2022, MDPI AG

    Dr Fernando Lessa Tofoli

  40. Modified Artificial Potential Field for the Path Planning of Aircraft Swarms in Three-Dimensional Environments

    Article • Sensors, February 2022, MDPI AG

    Dr Fernando Lessa Tofoli

  41. Single-Phase Isolated AC–AC Symmetrical Full-Bridge Converter

    Article • IEEE Journal of Emerging and Selected Topics in Power Electronics, February 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  42. Maximum power point tracking technique based on sweeping the characteristic curve of the photovoltaic module

    Article • Sustainable Computing Informatics and Systems, January 2022, Elsevier

    Dr Fernando Lessa Tofoli

  43. Magnetic Integration in High-Frequency-Isolated AC-AC Interleaved Converters

    Article • IEEE Journal of Emerging and Selected Topics in Power Electronics, January 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  44. Bidirectional Isolated Asymmetrical Multilevel Inverter

    Article • IEEE Transactions on Circuits & Systems II Express Briefs, January 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  45. Non‐isolated high step‐up DC–DC converter based on coupled inductors, diode‐capacitor networks, and voltage multiplier cells

    Article • International Journal of Circuit Theory and Applications, November 2021, Wiley

    Dr Fernando Lessa Tofoli

  46. Novel differential power processing topology for the mitigation of mismatch in photovoltaic systems

    Article • Electronics Letters, November 2021, the Institution of Engineering and Technology (the IET)

    Dr Fernando Lessa Tofoli

  47. General Evaluation of Rectifier Arrangements for the Three-Phase DC/DC Converter

    Article • November 2021, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  48. Non‐isolated high step‐up / step‐down DC–DC quadratic Ćuk converter

    Article • International Transactions on Electrical Energy Systems, October 2021, Wiley

    Dr Fernando Lessa Tofoli

  49. Non‐isolated high step‐up/step‐down quadratic converter for light‐emitting diode driving

    Article • International Journal of Circuit Theory and Applications, April 2021, Wiley

    Dr Fernando Lessa Tofoli

  50. Switched Capacitor DC-DC Converters: A Survey on the Main Topologies, Design Characteristics, and Applications

    Article • Energies, April 2021, MDPI AG

    Dr Fernando Lessa Tofoli

  51. Non‐isolated single‐phase inverter based on an autotransformer for low‐power applications

    Article • International Journal of Circuit Theory and Applications, April 2021, Wiley

    Dr Fernando Lessa Tofoli

  52. Plotting Characteristic Curves of Photovoltaic Modules: A Simple and Portable Approach

    Article • IEEE Industry Applications Magazine, January 2021, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  53. Improved and accurate low‐frequency average modelling and control of a conventional power factor correction boost converter in continuous conduction mode

    Article • IET Power Electronics, December 2020, the Institution of Engineering and Technology (the IET)

    Dr Fernando Lessa Tofoli

  54. In‐depth analysis of an RCD snubber applied to a DC‐DC boost converter

    Article • International Journal of Circuit Theory and Applications, December 2020, Wiley

    Dr Fernando Lessa Tofoli

  55. Reduced-order modeling approach for wind energy conversion systems based on the doubly-fed induction generator

    Article • Electric Power Systems Research, November 2020, Elsevier

    Dr Fernando Lessa Tofoli

  56. Three-phase phase-locked loop algorithm and application to a static synchronous compensator

    Article • Electric Power Systems Research, November 2020, Elsevier

    Dr Fernando Lessa Tofoli

  57. An integrated design approach of LCL filters based on nonlinear inductors for grid-connected inverter applications

    Article • Electric Power Systems Research, September 2020, Elsevier

    Dr Fernando Lessa Tofoli

  58. Household induction cooking system based on a grid-connected photovoltaic system

    Article • IET Circuits Devices & Systems, August 2020, the Institution of Engineering and Technology (the IET)

    Fernando Lessa Tofoli, Dr Fernando Lessa Tofoli

  59. Efficient two-stage offline driver for extra-high-current COB LED applications

    Article • Archiv für Elektrotechnik, May 2020, Springer Science + Business Media

    Dr Fernando Lessa Tofoli

  60. Interleaved bidirectional DC–DC converter for electric vehicle applications based on multiple energy storage devices

    Article • Archiv für Elektrotechnik, May 2020, Springer Science + Business Media

    Dr Fernando Lessa Tofoli

  61. Nonisolated DC–DC Converters With Wide Conversion Range for High-Power Applications

    Article • IEEE Journal of Emerging and Selected Topics in Power Electronics, March 2020, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  62. Bidirectional Three-Level Stacked Neutral-Point-Clamped Converter for Electric Vehicle Charging Stations

    Article • IEEE Access, January 2020, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  63. A Phase-Locked Loop Algorithm for Single-Phase Systems With Inherent Disturbance Rejection

    Article • IEEE Industrial Electronics Magazine, December 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  64. Novel conception of an electric propulsion system for a 9-kW electric tractor suitable to family farming

    Article • IET Electric Power Applications, July 2019, the Institution of Engineering and Technology (the IET)

    Dr Fernando Lessa Tofoli, Professor Fernando L. M. Antunes, Rodnei Melo

  65. Experimental evaluation of active power factor correction techniques in a single‐phase AC‐DC boost converter

    Article • International Journal of Circuit Theory and Applications, July 2019, Wiley

    Dr Fernando Lessa Tofoli

  66. Single‐switch, integrated DC–DC converter for high‐voltage step‐down applications

    Article • IET Power Electronics, June 2019, the Institution of Engineering and Technology (the IET)

    Dr Fernando Lessa Tofoli

  67. Development of A Small-Signal Model for The DC-DC Buck Converter Based on The Three-State Switching Cell

    Article • IEEE Latin America Transactions, April 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  68. A Survey on Topologies Based on The Three-State and Multi-State Switching Cells

    Article • IET Power Electronics, January 2019, the Institution of Engineering and Technology (the IET)

    Dr Fernando Lessa Tofoli, Douglas Tavares

  69. Modeling and Experimental Validation of a Single-Phase Series Active Power Filter for Harmonic Voltage Reduction

    Article • IEEE Access, January 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  70. Analysis of a static model for DC microgrids based on droop and MPPT control

    Article • International Transactions on Electrical Energy Systems, November 2018, Wiley

    Dr Fernando Lessa Tofoli

  71. A step-up/step-down direct current to direct current converter for high-power, high-current applications

    Article • International Journal of Circuit Theory and Applications, October 2018, Wiley

    Dr Fernando Lessa Tofoli

  72. Three-Phase Grid-Connected WECS With Mechanical Power Control

    Article • IEEE Transactions on Sustainable Energy, October 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  73. Assessment of the ideality factor on the performance of photovoltaic modules

    Article • Energy Conversion and Management, July 2018, Elsevier

    Dr Fernando Lessa Tofoli

  74. A 3SSC-Based Nonisolated DC-DC Boost-Type Converter with Balanced Output Voltage and Wide Voltage Conversion Range

    Article • IET Power Electronics, February 2018, the Institution of Engineering and Technology (the IET)

    Dr Fernando Lessa Tofoli

  75. A DC-DC buck-boost converter based on the three-state switching cell

    Article • November 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  76. Analysis of a high power COB led light source driven by offline double-stage PFC converter

    Article • November 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  77. Comparative analysis of basic single-stage non-isolated AC-DC topologies employed as high-current COB LED drivers

    Article • November 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  78. Current multilevel pfc buck rectifier applied to a high-power COB LED driver

    Article • November 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  79. Detailed design procedure of a DC-DC buck-boost converter employing a passive snubber

    Article • November 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  80. Portable and low cost photovoltaic curve tracer

    Article • November 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  81. Practical design of a DC-DC buck converter using an RCD snubber

    Article • November 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  82. Small-signal model validation of a SEPIC converter based on the three-state switching cell in CCM using the PWM switch model

    Article • November 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  83. A soft switching ZCS–ZVS double two-switch forward converter

    Article • Archiv für Elektrotechnik, June 2017, Springer Science + Business Media

    Dr Fernando Lessa Tofoli

  84. Application of ADALINE-based ARX model to control the DC-link voltage in resonant inverters used in induction cookers

    Article • April 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  85. Evaluation of IGBT modules in ASDs submitted to overvoltage

    Article • April 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  86. Comparison among mathematical models of the photovoltaic cell for computer simulation purposes

    Article • International Journal of Electronics, March 2017, Taylor & Francis

    Dr Fernando Lessa Tofoli

  87. Influence of series and shunt resistances in the ideality factor of photovoltaic modules

    Article • November 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  88. Modeling, Digital Control, and Implementation of a Three-Phase Four-Wire Power Converter Used as a Power Redistribution Device

    Article • IEEE Transactions on Industrial Informatics, June 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  89. Analysis of the low-frequency output current ripple in a buck-based LED driver under distinct control techniques

    Article • June 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  90. Analysis, design, and implementation of soft-switching cells applied to the single-phase full-bridge inverter

    Article • IET Power Electronics, May 2016, the Institution of Engineering and Technology (the IET)

    Dr Fernando Lessa Tofoli

  91. Analysis and small-signal modeling of a nonisolated high voltage step-up dc-dc boost converter

    Article • November 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  92. Application of the commutated power concept to the classical isolated dc-dc converters

    Article • November 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  93. Comparison of control techniques used in power factor correction rectifiers

    Article • November 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  94. High-voltage gain dc–dc boost converter with coupled inductors for photovoltaic systems

    Article • IET Power Electronics, October 2015, the Institution of Engineering and Technology (the IET)

    Professor Fernando L. M. Antunes, Dr Fernando Lessa Tofoli

  95. Survey on non-isolated high-voltage step-up dc–dc topologies based on the boost converter

    Article • IET Power Electronics, October 2015, the Institution of Engineering and Technology (the IET)

    Dr Fernando Lessa Tofoli

  96. Novel bidirectional DC–DC converters based on the three-state switching cell

    Article • International Journal of Electronics, August 2015, Taylor & Francis

    Dr Fernando Lessa Tofoli

  97. Analysis of high voltage step-up nonisolated DC–DC boost converters

    Article • International Journal of Electronics, August 2015, Taylor & Francis

    Dr Fernando Lessa Tofoli

  98. Low cost wind energy conversion system based on the discontinuous conduction mode three-phase semi-controlled rectifier

    Article • IET Power Electronics, June 2015, the Institution of Engineering and Technology (the IET)

    Dr Fernando Lessa Tofoli

  99. Soft switching high-voltage gain dc–dc interleaved boost converter

    Article • IET Power Electronics, January 2015, the Institution of Engineering and Technology (the IET)

    Dr Fernando Lessa Tofoli

  100. Comparative Study of Maximum Power Point Tracking Techniques for Photovoltaic Systems

    Article • International Journal of Photoenergy, January 2015, Hindawi Publishing Corporation

    Dr Fernando Lessa Tofoli

  101. Comparative study of high power factor boost rectifiers in continuous conduction mode

    Article • December 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  102. An extensive review of nonisolated DC-DC boost-based converters

    Article • December 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  103. A Nonisolated DC–DC Boost Converter With High Voltage Gain and Balanced Output Voltage

    Article • IEEE Industrial Electronics Magazine, December 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  104. Comprehensive review of high power factor ac-dc boost converters for PFC applications

    Article • International Journal of Electronics, November 2014, Taylor & Francis

    Dr Fernando Lessa Tofoli

  105. DC–DC Nonisolated Boost Converter Based on the Three-State Switching Cell and Voltage Multiplier Cells

    Article • IEEE Industrial Electronics Magazine, October 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  106. DC-DC nonisolated boost converter with high voltage gain adequate for split-capacitor inverter applications

    Article • October 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  107. Modelling of nonisolated high-voltage gain boost converters using the PWM switch model

    Article • International Journal of Electronics, July 2013, Taylor & Francis

    Dr Fernando Lessa Tofoli

  108. Comparative analysis between overlapping and non-overlapping operation modes for the PWM buck converter using the three-state switching cell

    Article • International Journal of Electronics, May 2013, Taylor & Francis

    Dr Fernando Lessa Tofoli

  109. A DC–DC Converter Based on the Three-State Switching Cell for High Current and Voltage Step-Down Applications

    Article • IEEE Transactions on Power Electronics, January 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  110. ZVS bidirectional isolated three-phase DC-DC converter with dual phase-shift and variable duty cycle

    Article • November 2012, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  111. Novel Nonisolated High-Voltage Gain DC–DC Converters Based on 3SSC and VMC

    Article • IEEE Transactions on Power Electronics, September 2012, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  112. Power Factor Correction Boost Converter Based on the Three-State Switching Cell

    Article • IEEE Industrial Electronics Magazine, March 2012, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  113. Piezoelectric actuators applied to neutralize mechanical vibrations

    Article • Journal of Vibration and Control, October 2011, SAGE Publications

    Dr Fernando Lessa Tofoli

  114. Comparison of nonisolated dc-dc converters from the efficiency point of view

    Article • September 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  115. Analysis, Design, and Experimentation of a Double Forward Converter With Soft Switching Characteristics for All Switches

    Article • IEEE Transactions on Power Electronics, August 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  116. Two-stage single-phase grid-connected photovoltaic system with reduced complexity

    Article • International Journal of Electronics, June 2011, Taylor & Francis

    Dr Fernando Lessa Tofoli

  117. An efficient switch-mode power supply using an AC-DC interleaved boost converter and a DC-DC full-bridge topology

    Article • International Journal of Electronics, April 2011, Taylor & Francis

    Dr Fernando Lessa Tofoli

  118. Study, Design and Implementation of a High Efficiency AC-DC-AC SMPS with Soft Switching Characteristics

    Article • January 2011, ACTA Press

    Dr Fernando Lessa Tofoli

  119. Case Study: Hydroelectric Generation Employing the Water Distribution Network in Pato Branco, Brazil

    Article • January 2011, ACTA Press

    Dr Fernando Lessa Tofoli

  120. A Grid-Connected PV System based on the Buck Converter

    Article • January 2011, ACTA Press

    Dr Fernando Lessa Tofoli

  121. Two-Stage Isolated Switch-Mode Power Supply With High Efficiency and High Input Power Factor

    Article • IEEE Industrial Electronics Magazine, November 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli, Professor Antonio Carlos Lessa

  122. A review of single-phase PFC topologies based on the boost converter

    Article • November 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  123. A high power factor rectifier associated with a ZCZVS PWM full-bridge inverter in a rectifier/inverter system

    Article • June 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  124. A Passive Lossless Snubber Applied to the AC–DC Interleaved Boost Converter

    Article • IEEE Transactions on Power Electronics, March 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  125. Non-isolated DC-DC converters with wide conversion range used to drive high-brightness LEDs

    Article • September 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  126. A low cost single-phase grid-connected photovoltaic system with reduced complexity

    Article • September 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  127. A switched-mode power supply using a boost-flyback converter and an interleaved soft-switching forward topology

    Article • June 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  128. Proposal of a Soft-Switching Single-Phase Three-Level Rectifier

    Article • IEEE Industrial Electronics Magazine, January 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  129. Analysis and Evaluation of Residential Air Conditioners for Power System Studies

    Article • IEEE Transactions on Power Systems, May 2007, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  130. On the Study of Losses in Cables and Transformers in Nonsinusoidal Conditions

    Article • IEEE Transactions on Power Delivery, April 2006, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  131. A High-Power-Factor Half-Bridge Doubler Boost Converter Without Commutation Losses

    Article • IEEE Industrial Electronics Magazine, October 2005, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  132. A unity power factor single-phase three-level rectifier associated with a passive nondissipative snubber

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  133. Proposal of a SMPS with AC output voltage employing a quadratic boost converter, a new topology of soft-switched two-switch forward converter and a new topology of PWM three-level half-bridge inverter

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  134. A ZCZVT PWM three-level full-bridge McMurray inverter

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  135. A switched-mode power supply employing a quadratic boost converter and a soft-switched two-switch forward converter

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  136. A novel high power factor switched-mode power supply employing an interleaved boost-flyback converter and a ZCZVS PWM full-bridge McMurray inverter

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  137. A new topology of three-level half bridge inverter

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  138. A new topology of soft-switched two-gwd'itch forward converter and a new topology of PWM three-level half-bridge inverter

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  139. Association of a ZCZVS PWM three-level full-bridge McMurray inverter and an auxiliary power supply

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli

  140. A high power factor power supply employing a self-oscillating converter to supply control circuitry

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Dr Fernando Lessa Tofoli