Publications associées à Compensating Propagation Delay in PT-Symmetry-Based Inductive Power Transfer Systems: Control Strategies for Misalignment-Tolerant CC and CV Operations

Publications associées (20)

Design Trade-offs of Second Harmonic Minimization in Solid-State Transformers

In two-stage solid-state transformers (SSTs) equipped with LLC DC/DC converters for galvanic isolation, fixed-frequency open-loop operation of LLC stages has been a straightforward and prevailing design choice. Meanwhile, with a closed-loop-operated LLC co ...

Institute of Electrical and Electronics Engineers (IEEE)2025

Sub-2W tunable laser based on silicon photonics power amplifier

Michael Wolfgang Geiselmann, Joao Carlos Menezes Carreira

High-power tunable lasers are intensely pursued due to their vast application potential such as in telecom, ranging, and molecular sensing. Integrated photonics, however, is usually considered not suitable for high-power applications mainly due to its smal ...

Springer Science and Business Media LLC2025

Voltage Balancing of a Split-Capacitor IGCT 3L-NPC Leg for the Resonant DC Transformer

Drazen Dujic, Renan Pillon Barcelos

2024

Novel Modulation with Flexible Power Distribution for Single-Phase Dual-Port DC-AC Converters

Andrea Cervone

Dual-port dc-ac converters utilizing the Neutral-Point-Clamped (NPC) multilevel topology are increasingly considered for the compact integration of multiple sources and loads in various applications. NPC-based dual-port converters (NPCDPC) allow the interc ...

Institute of Electrical and Electronics Engineers Inc.2024

Terminal Characteristics Measurements and Analysis of the Three-Phase Active Front End Converter Building Block

Drazen Dujic, Marko Petkovic

The safe and reliable operation of modern power system imposes the need to describe and estimate the system stability through impedance-admittance measurement and identification. The integration and operation of medium voltage equipment in existing infrast ...

Wiley2021

Miniaturised Wireless Power Transfer Systems for Neurostimulation: A Review

Sandro Carrara, Diego Ghezzi, Danilo Demarchi, Gian Luca Barbruni

In neurostimulation, wireless power transfer is an efficient technology to overcome several limitations affecting medical devices currently used in clinical practice. Several methods were developed over the years for wireless power transfer. In this review ...

2020

High voltage switch for compact bidirectional dc-dc converter driving dielectric electroactive polymer actuators

Yves Perriard, Yoan René Cyrille Civet, Morgan Almanza, Raphaël Johannes Charles Mottet

Driving DEAs requires time-varying high voltage power supplies, up to 18kV for 200um polymer layers. HV amplifiers are commonly used but bulky and expensive. Designing embedded actuators requires compact and efficient powersupplies. Furthermore, only a lit ...

2019

Flexible Medium Voltage DC Source Utilizing Series Connected Modular Multilevel Converters

Drazen Dujic, Stefan Milovanovic, Milan Utvic

This paper presents the converter configuration acting as a medium voltage DC source. In order to obtain desired voltage across the DC terminals, two series connected modular multilevel converters are used. The use of modular multilevel converters results ...

IEEE2019

Open-Loop Power Sharing of Three-Port DC-DC Resonant Converters

Drazen Dujic, Francisco Daniel Freijedo Fernández, Yan-Kim Tran

Multi-port DC-DC converters are an attractive solution for highly flexible and efficient interface of different elements of DC grids (e.g., sources, loads, energy storage). This paper provides an analytic solution for the natural power sharing characterist ...

2019

Taming the viscoelastic creep of dielectric elastomer actuators

Herbert Shea, Samuel Rosset, Alexandre Poulin

We present a simple open-loop method to suppress the viscoelastic drift of dielectric elastomer actuators (DEAs). Viscoelastic creep is one of the drawbacks of DEAs, especially when made with acrylic elastomer membranes (VHB). This leads to a time-dependen ...

SPIE-INT SOC OPTICAL ENGINEERING2019

An Energy Efficient Power Converter for Zero Power Wearable Devices

Milad Ataei Ashtiani

Early diagnosis of Alzheimer's and epilepsy requires monitoring a subject's development of symptoms through electroencephalography (EEG) signals over long periods. Wearable devices enable convenient monitoring of biosignals, unlike complex and costly hospi ...

EPFL2018

Galvanically Isolated Modular Converter

Alexandre François Christe

The ever increasing penetration of renewable energy systems in the distribution grids will inevitably require profound changes in the grid infrastructure. One emerging direction, the medium voltage dc (MVdc) grids, is the cornerstone of this work. They are ...

EPFL2018

High-Current Low-Voltage Power Supplies for Superconducting Magnets

Drazen Dujic, Émilien Luc Henri Coulinge

In a synchrotron accelerator, the beam trajectory is controlled thanks to magnets, where superconducting technology allows to generate very strong magnetic fields. This was a key element in the construction of the Large Hadron Collider (LHC), the world lar ...

2017

Composable Method for Explicit Power Flow Control in Electrical Grids

Mario Paolone, Jean-Yves Le Boudec, Andrey Bernstein

A power flow control system for an interconnected power system, the interconnected power system comprising a plurality of electrical subsystems; an abstract framework configured to work as a utility maximiser under constraints (that applies to the electric ...

2016

A System for Wireless Power Transfer and Data Communication of Long-Term Bio-Monitoring

Giovanni De Micheli, Sandro Carrara, Catherine Dehollain, Camilla Baj-Rossi, Francesca Stradolini, Seyedeh Sara Ghoreishizadeh, Cristina Boero, Enver Gürhan Kilinç, Franco Maloberti, Stefano Riario

A system for wireless power transfer and data communication of implantable bio-monitoring systems is presented. The proposed solution uses a servo-controlled power transmitter moved under the animal moving space. An x-y movable magnetic coil transmits the ...

Institute of Electrical and Electronics Engineers2015

A Five-Level NPC Photovoltaic Inverter with an Actively Balanced Capacitive Voltage Divider

Alfred Rufer

A new five-level photovoltaic Inverter is presented, implemented by associating a Multistage Stacked Boost Architecture (MSBA) with a 5-level NPC inverter. Ahead of the MSBA conversion stage, a conventional boost converter allows the operation of the PV ce ...

2015

Real-Time Optimal Controls for Active Distribution Networks : From Concepts to Applications

Konstantina Christakou

Decentralized generation, distributed energy storage systems and active participation of end-users in the lower level of the electrical infrastructure, intelligently managed to provide grid support, define the notion of Active Distribution Networks (ADNs). ...

EPFL2015

Modular Converter Architecture for Medium Voltage Ultra Fast EV Charging Stations: Dual Half-Bridge-based Isolation Stage

Alfred Rufer, Michail Vasiladiotis, Behrooz Bahrani

The concept of ultra fast charging of Electric Vehicles (EVs) is expected to contribute significantly to their widespread utilization in long-distance travels. Towards this direction, emerging power electronic topologies will be the key components of the d ...

2014

A 15 mu W 5.5 kS/s Resistive Sensor Readout Circuit with 7.6 ENOB

Catherine Dehollain

A low power SAR logic-based resistive sensor readout circuit is proposed. A high sensitivity thermistor is used for local temperature measurements. The need for a low-noise front-end voltage amplifier is avoided by employing time-domain operation. In each ...

Institute of Electrical and Electronics Engineers2014

Hall Cells Offset Analysis and Modeling Approaches

Maria-Alexandra Paun

The Hall Effect sensors are one of the most commonly used sensing technologies today. They are employed in many applications for direct magnetic field sensing and serve a multitude of low power applications within automotive and industrial electronics as c ...

EPFL2013