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Publications associées (28)

System Design and Advanced Circuit Techniques for Bi-Directional Brain-Machine Interfaces

Wen-Yang Hsu

Bi-directional brain-machine interfaces (BBMIs) that can capture electrophysiological signals and provide feedback through electrical stimulation are emerging tools with various applica-tions in fundamental neuroscience research as well as in clinical trea ...

EPFL2018

Discrete-Time Domain Modeling of Voltage Source Inverters in Standalone Applications: Enhancement of Regulators Performance by Means of Smith Predictor

Francisco Daniel Freijedo Fernández, Federico De Bosio

The decoupling of the capacitor voltage and inductor current has been shown to improve significantly the dynamic performance of voltage source inverters in standalone applications. However, the computation and pulse width modulation delays still limit the ...

Ieee-Inst Electrical Electronics Engineers Inc2017

Electronics Emulation for Real-Time Fault Location in Power Systems

François Pierre Gaugaz

This research presents a high-speed hardware platform dedicated to emulate electrical power networks for the fault location. The solution implements an algorithm based on the Electromagnetic Time-Reversal (EMTR) principle, which allows locating faults in v ...

EPFL2017

Compact, Energy-Efficient High-Frequency Switched Capacitor Neural Stimulator With Active Charge Balancing

Alexandre Schmid, Wen-Yang Hsu

Safety and energy efficiency are two major concerns for implantable neural stimulators. This paper presents a novel high-frequency, switched capacitor (HFSC) stimulation and active charge balancing scheme, which achieves high energy efficiency and well-con ...

Ieee-Inst Electrical Electronics Engineers Inc2017

On Wind Turbine Impedance Analysis via Different Approaches

Antonio Sunjerga, Farhad Rachidi-Haeri

Lightning is one of the main causes of damage to wind turbines. The continuous increase in the wind turbine heights makes these structures even more vulnerable against lightning. As a result, the design of proper lightning protection system is of high impo ...

Ieee2017

Implementation Guidelines for a Real-Time Fault Location System in Electrical Power Networks

Maher Kayal, François Krummenacher, François Pierre Gaugaz

This paper presents constraints involved in the microelectronic implementation of a transmission line model based on transconductor-capacitor (gm-C) topologies. The presented line model, based on the discretization of a transmission line into a finite numb ...

Ieee2016

DC-DC Converter based on the Asymmetric Multistage Stacked Boost Architecture with Feed-Forward Control for Photovoltaic Plants

Alfred Rufer, Gina Kristin Steinke, Georgios Mademlis

A new feed-forward control technique for a DC-DC step-up converter based on the asymmet-ric Multistage Stacked Boost Architecture (MSBA) is presented in this paper. The proposed closed loop control scheme can provide improved accuracy in the steady-state o ...

2016

Graphene quantum capacitors for high-Q tunable LC-tanks for RF ICs

Juan Ramon Mosig, Mihai Adrian Ionescu, Clara-Fausta Moldovan, Michele Tamagnone, Wolfgang Amadeus Vitale

We propose and characterize graphene quantum capacitors, tunable with voltage by the control of their charge density, for tunable LC tanks as essential building blocks for Radio-Frequency (RF) functions in densely integrated circuits. We fabricate and inve ...

IEEE2016

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