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Tuning high-Q nonlinear dynamics in a disordered quantum magnet

Publications associées (34)

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Akribis Systems is a young company specialising in the design and manufacture of motors, stages, and precision systems used in many various environments. Akribis’ products range from standard linear and voice coil motors to fully customized stages, through ...

2017

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

Semiclassical S-matrix for black holes

Sergey Sibiryakov

We propose a semiclassical method to calculate S-matrix elements for two-stage gravitational transitions involving matter collapse into a black hole and evaporation of the latter. The method consistently incorporates back-reaction of the collapsing and emi ...

Springer2015

A digitally controlled 125 kVdc, 30kW power supply with an LCC resonant converter working at variable DC-link voltage: Full scale prototype test results

Mario Paolone, Mauro Carpita

In this paper, a high output voltage power converter working at variable input DC-link voltage is presented. The variable DC link voltage opens to very interesting solution at system level. However, those solutions will be the subject of futures papers. On ...

IET2014

Contribution to the Active Generator Principle

Antoine Béguin

This work is part of the innovative "Active Generator" (AG) project. AG is a concept that suggests a new arrangement of the turbine-generator line of a high power utility (a few hundred of MW) in order to de-synchronize the rotation speed of the turbine-ge ...

EPFL2012

Inductive Power Link for a Wireless Cortical Implant With Two-Body Packaging

Catherine Dehollain, Michel Declercq, Kanber Mithat Silay

This paper presents an inductive power link for remote powering of a wireless cortical implant. The link includes a Class-E power amplifier, a gate driver, an inductive link, and an integrated rectifier. The coils of the inductive link are designed and opt ...

Institute of Electrical and Electronics Engineers2011

Railway Catenary Parameters Identification based on Harmonic Current Injection

Alfred Rufer, Behrooz Bahrani, Martin Aeberhard

Modern trains with active line-side converters are currently the state-of-the-art technology in the traction industry. In such systems, the active line-side converter of the drive system can be exploited for power quality improvement purposes. In this pape ...

Ieee2011

Power and DC Link Voltage Control Considerations for Indirect AC/AC Modular Multilevel Converters

Alfred Rufer, Michail Vasiladiotis, Stephan Kenzelmann, Nicolas Cherix

A highly interesting application field of the Modular Multilevel Converter is the interconnection of the European three-phase 50 Hz industrial grid with the single-phase 16 2/3 Hz railway supply. Contrary to existing technologies, the utilization of a bulk ...

Ieee2011

Multiphysical Characterization of Medium-Frequency Power Electronic Transformers

Irma Villar

Europe is currently making a great effort in order to improve the sustainability and reduce the environmental impact of its energy and transportation systems. A key role on these initiatives is played by efficient generation systems, like cogeneration, and ...

EPFL2010

State-of-the-art low voltage (LV) medium and high power variable speed drives are voltage source converters. Frequently, frond-end stage is a diode rectifier. To reduce the amount of input current harmonic,, multi-pulse rectifiers are used. Due to the high ...

2009