Overview
ABSTRACT
This article studies an innovative digital circuit operating with negative group delay (NGD) infinite impulse response (IIR). This extraordinary and unfamiliar circuit can be outstandingly identified with possibility to generate output signals ahead of the corresponding inputs. The NGD digital circuit theory, operation principle and design methodology are established by means of frequency-time diagram and verified by both simulation and experiment. Various arbitrary waveform pulse signals with few ms duration are originally tested with NGD IIR circuit prototype implemented on STM32® microcontroller. Potential applications such as delay suppression and pre-detection of faults are introduced.
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Read the articleAUTHORS
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Blaise RAVELO: Engineer from ESPA/University of Antsiranana, DESS, - Master's degree and PhD from UBO, HDR from Université de Rouen - Professor, NUIST University, Nanjing, China
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Mathieu GUÉRIN: Lecturer and Doctor at Aix-Marseille University - Aix-Marseille University, CNRS, University of Toulon, - IM2NP UMR7334, Marseille, France
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Wenceslas RAHAJANDRAIBE: University Professor and Doctor at the University of Montpellier - Aix-Marseille University, CNRS, University of Toulon, - IM2NP UMR7334, Marseille France
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Lala RAJAOARISOA: Lecturer and Doctor at Aix-Marseille University - IMT Nord Europe, Institut Mines-Télécom, Université de Lille, - Center for Digital Systems, Lille, France
INTRODUCTION
To meet the needs of our society, modern electronic engineering is constantly developing, overcoming various technological barriers. Engineers' success in meeting this challenge is essentially based on the design and development of new, increasingly innovative electronic devices. As a result, the electronic circuit and device design industries are constantly evolving towards different types of analog, electronic and mixed technologies. Within this development framework, remarkable progress has been made with innovation in cutting-edge digital electronics technology
Behind today's industrial progress, specifically original electronic functions are needed to develop innovations that meet society's expectations. The performance of
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KEYWORDS
digital circuit | NGD circuit | infinite impulse response | design method | test technique
Design of a 2nd-order RII negative-time circuit on an STM32 microcontroller
General principle of a low-pass (LP) negative-time function
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