Publications associées à Frequency compensation

Mechanisms of Control Authority by Nanosecond Pulsed Dielectric Barrier Discharge Actuators on Flow Separation

Peter Ott, Pénélope Leyland, Christoforos Skourides, Dimitrios Nyfantis, Hugo Bosse

The mechanisms that should be considered for separation flow control applications of nanosecond pulsed dielectric barrier discharge (DBD) actuators were investigated on a NACA 0015 profile for velocities of 10 m/s (Re = 100, 000) and 20 m/s (Re = 200, 000) ...

2019

A high sensitivity low-power capacitive front-end for insulin injection pens

Maher Kayal, François Krummenacher, Jean-Baptiste Robert Orhan, François Pierre Gaugaz

A low-power 14-bits first order incremental Analog-to-Digital Converter (ADC) is presented. Based on the charge balancing principle, this switched-capacitor (SC) circuit integrates the input signal multiple times to reach the targeted resolution, linearity ...

ELSEVIER SCI LTD2019

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

OTA-C based high-speed analog processing for real-time fault location in electrical power networks

Maher Kayal, François Krummenacher, François Pierre Gaugaz

This paper explores the potential and limitations of analog integrated circuit techniques for the simulation of low-loss or lossless 1D or 2D transmission mediums. In this approach, a transmission line is mapped into a ladder consisting of N identical LC e ...

Springer Verlag2016

3.6 GHz CMOS Ring Oscillator with Low Tune Voltage Sensitivity and Temperature Compensation

Yusuf Leblebici, Tugba Demirci, Hasene Gülperi Özsema

In this paper we present the design of a temperature compensated low-tune-voltage-sensitive CMOS ring oscillator in 40nm standard CMOS technology. The oscillator has an overall frequency range from 3.1 GHz to 3.6 GHz. The effect of temperature variations o ...

2015

Preventive reactive power management for improving voltage stability margin

Mokhtar Bozorg, Sidi-Rachid Cherkaoui, Omid Alizadeh Mousavi

Voltage stability imposes important limitations on the power systems operation. Adequate voltage stability margin needs to be obtained through the appropriate scheduling of the reactive power resources. The main countermeasures against voltage instability ...

Elsevier2013

Reactive power reserve management: Preventive countermeasure for improving voltage stability margin

Sidi-Rachid Cherkaoui, Mokhtar Bozorg, Omid Alizadeh Mousavi, Ali Ahmadi Khatir

Voltage stability imposes important limitations on the power systems operation. The system should be operated with an adequate voltage stability margin by the appropriate scheduling of reactive power resources and voltage profile. The main countermeasures ...

IEEE2012

Power-Efficient Pipelined Analog-to-Digital Converter Architectures for Advanced CMOS Technologies

Among different analog-to-digital converter (ADC) architectures pipelined ADCs are the most suited for medium sampling frequencies (50-300MSPS) and medium resolutions, i.e. 8 to 14 bits. Having the lowest figure-of-merit (FOM) in its bandwidth and resoluti ...

EPFL2012

A fully on-chip LDO voltage regulator with 37 dB PSRR at 1 MHz for remotely powered biomedical implants

Alexandre Schmid, Catherine Dehollain, Yusuf Leblebici, Vahid Majidzadeh Bafar, Kanber Mithat Silay

This article presents a fully on-chip low-power LDO voltage regulator dedicated to remotely powered wireless cortical implants. This regulator is stable over the full range of alternating load current and provides fast load regulation achieved by applying ...

Springer US2011

AM Modulation-based CMOS Readout Circuit for High-density Microelectrode Arrays

Alexandre Schmid, Yusuf Leblebici, Neil Joye

An innovative readout channel, based on analog amplitude modulation (AM) of the signals recorded by each electrode, is developed for high-density CMOS-based MEAs. This new readout method enables the design of a low-noise amplification stage while still rea ...

2010