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

A 32kHz crystal oscillator leveraging voltage scaling in an ultra-low power 40nA real-time clock

Maher Kayal, François Krummenacher, Mathieu Yves Hervé Coustans

In this paper, an ultra-low power consumption crystal oscillator embedded in an RTC module (ASIC and its crystal resonator) is presented. The technique leverages oscillation amplitude and loads capacitance scaling; it incorporates transistor level merging ...

IEEE2018

A Reliability and Efficiency Optimization System for Hard-Switching DC/DC Converters

Maher Kayal, Adil Koukab, Giacomo Ripamonti, Stefano Michelis, Federico Faccio

The Large Hadron Collider experiments at CERN will use power distribution schemes relying on integrated buck DC/DC converters. Due to the radiation-hardness requirements, the devices used for the development of such converters will have a voltage rating wh ...

IEEE2018

Utopia: A Nine Decade Femtoampere Sensitivity Current Digitizer and its Application in Ionizing Radiation Monitoring

Maher Kayal, Evgenia Voulgari, François Krummenacher

2018

Design of a fA wide dynamic range ADC for current sensing

Maher Kayal, Evgenia Voulgari, François Krummenacher

2018

A secure and distributed message oriented middleware for smart building applications

Maher Kayal, Georgios Lilis

2018

Design of a fA wide dynamic range ADC for current sensing (pg 1, 2018)

Maher Kayal, Evgenia Voulgari, François Krummenacher

2018

Utopia: A Nine Decade Femtoampere Sensitivity Current Digitizer and Its Application in Ionizing Radiation Monitoring

Maher Kayal, Evgenia Voulgari, François Krummenacher

2018

Ultra High-Speed Hardware Emulator for Real-Time Fault Location in Multi-Conductor Power Systems

Maher Kayal, François Krummenacher, François Pierre Gaugaz

This research presents a transmission line model aimed for the fault location in power systems using a method based on the Electromagnetic Time-Reversal (EMTR). The discrete-time model simulates the waves travelling in the line by means of many unit delays ...

IEEE2018