The Active Self-controlled Free-wheeling Management Principle Applied to Reverse Recovery Losses Reduction

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Switched-capacitor high-speed emulator for real-time fault location in electrical power systems

Maher Kayal, François Krummenacher, François Pierre Gaugaz

This research presents a discrete-time transmission line model based on the propagation of travelling waves. In this approach, the transmission line is emulated by means of many interconnected unit delay cells implemented with switched-capacitor (SC) circu ...

SPRINGER2018

MVDC Supply Technologies for Marine Electrical Distribution Systems

Drazen Dujic, Francisco Daniel Freijedo Fernández, Uzair Javaid

The increase in the popularity of the medium voltage dc (MVDC) electrical distribution, as a possible evolution of the medium voltage ac (MVAC) electrical distribution for the ship on-board power systems, arises a need for a comparative evaluation and demo ...

2018

Circuit Design, Architecture and CAD for RRAM-based FPGAs

Xifan Tang

Field Programmable Gate Arrays (FPGAs) have been indispensable components of embedded systems and datacenter infrastructures. However, energy efficiency of FPGAs has become a hard barrier preventing their expansion to more application contexts, due to two ...

EPFL2017

Van der Waals MoS2/VO2 heterostructure junction with tunable rectifier behavior and efficient photoresponse

Olivier Martin, Mihai Adrian Ionescu, Arnaud Magrez, Andreas Schueler, Igor Stolichnov, Anna Krammer, Emanuele Andrea Casu, Chen Yan, Teodor Rosca, Nicolò Oliva

Junctions between n-type semiconductors of different electron affinity show rectification if the junction is abrupt enough. With the advent of 2D materials, we are able to realize thin van der Waals (vdW) heterostructures based on a large diversity of mate ...

Nature Research2017

Input-Series and Output-Series High Voltage Converter with Active Balancing Circuit for N-1 Operation

Alfred Rufer, Tiago Alexandre Nabais Lima

An input-series/output-series converter dedicated to high power applications is presented. The converter is composed of plural MF transformers based on DC-DC sub-converters. The series connection allows reaching input-voltage levels in the range of several ...

Ieee2016

High-Power High-Voltage Isolated DC-DC Converters using an NPC Balanced Capacitive Divider

Alfred Rufer

A new isolated DC-DC converter is presented suited for high voltage applications. It is based on the series connection of NPC inverter cells, using semiconductor devices with lower voltage blocking capability than the total input voltage. The galvanic isol ...

2015

Passive UHF RFID Systems for Capacitive Sensing Applications

Kerem Kapucu

In this work, a complete passive UHF RFID system for capacitive sensing applications is developed to be used in food quality monitoring and supply chain management. All the components of the RFID system including the base station, the base station antenna, ...

EPFL2015

Substrate Current Modeling for high Temperature Smart Power BCD Technology

Fabrizio Lo Conte

The electronics industry is present nowadays in the most various applications. A new type of technology for integrated circuits named BCD has started to be developed and appeared from the mid 1980’s. This new technology allows integrating bipolar transisto ...

EPFL2012