Concept

Stored program control

Publications associées (11)

Gate unit for a gate-commutated thyristor and integrated gate-commutated thyristor

The invention relates to a gate unit (22) for controlling a gate commutated thyristor (21), comprising: - a voltage selector (26) for selectively applying a high supply potential (Vpos), a middle supply potential (Vmid), and a low supply potential (Vneg); ...

2023

High frequency IGCT operation for DC transformer

Gabriele Ulissi

In spite of the dominance of ac technology for the vast majority of power transmission and distributionsince the late 19th century, the past decades have seen an increase in use of dc electrical power. Inparticular, this has been the case both in high volt ...

EPFL2022

All-optical switching in epsilon-near-zero asymmetric directional coupler

Jiaye Wu, Qian Li

We propose an all-optical switch based on an asymmetric directional coupler structure with epsilon-near-zero (ENZ) layer. The nonlinear optical properties the of ENZ layer are analyzed by hot-electron dynamics process, and the all-optical operating perform ...

NATURE PORTFOLIO2022

Universal Dynamics and Controlled Switching of Dissipative Kerr Solitons in Optical Microresonators

Tobias Kippenberg, Victor Brasch, Maxim Karpov, Hairun Guo, Martin Hubert Peter Pfeiffer, Erwan Guillaume Albert Lucas, Arne Kordts

We discover a novel mechanism allowing for successive reduction of the number of dissipative Kerr solitons in optical microresonators. It is demonstrated that multiple and single soliton state can be deterministically accessed. ...

Ieee2016

A Ultra-Low-Power FPGA Based on Monolithically Integrated RRAMs (invited)

Giovanni De Micheli, Davide Sacchetto, Yusuf Leblebici, Pierre-Emmanuel Julien Marc Gaillardon, Xifan Tang, Jury Sandrini, Somayyeh Rahimian Omam, Maxime Victor Thammasack

Field Programmable Gate Arrays (FPGAs) rely heavily on complex routing architectures. The routing structures use programmable switches and account for a significant share in the total area, delay and power consumption numbers. With the ability of ...

IEEE2015

A Study on Buffer Distribution for RRAM-based FPGA Routing Structures

Giovanni De Micheli, Pierre-Emmanuel Julien Marc Gaillardon, Xifan Tang, Somayyeh Rahimian Omam

Compared to Application-Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) provide reconfigurablity at the cost of lower performance and higher power consumption. Exploiting a large number of programmable switche ...

IEEE2015

Signaling in 3-D integrated circuits, benefits and challenges

Somayyeh Rahimian Omam

Three-dimensional (3-D) or vertical integration is a design and packaging paradigm that can mitigate many of the increasing challenges related to the design of modern integrated systems. 3-D circuits have recently been at the spotlight, since these circuit ...

EPFL2015

A High-Performance Low-Power Near-Vt RRAM-based FPGA

Giovanni De Micheli, Pierre-Emmanuel Julien Marc Gaillardon, Xifan Tang

The routing architecture, heavily using programmable switches, dominates the area, delay and power of Field Programmable Gate Arrays (FPGAs). Resistive Random Access Memories (RRAMs) enable high-performance routing architectures through the r ...

2014

An Application-Specific Design Methodology for STbus Crossbar Generation

Giovanni De Micheli, Srinivasan Murali

As the communication requirements of current and future Multiprocessor Systems on Chips (MPSoCs) continue to increase, scalable communication architectures are needed to support the heavy communication demands of the system. This is reflected in the recent ...

2005

Acoustic Echo Cancellation for Human-Robot Communications

Jérôme Berclaz

This master thesis presents a new efficient method of acoustic echo cancellation targeted at speech recognition for robots. The proposed algorithm features a new double-talk detector, an enhanced initialization and a new noise estimation method. The DTD al ...

2004

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