Methodology for the Digital Calibration of Analog Circuits and Systems shows how to relax the extreme design constraints in analog circuits, allowing the realization of high-precision systems even with low-performance components. A complete methodology is proposed, and three applications are detailed. To start with, an in-depth analysis of existing compensation techniques for analog circuit imperfections is carried out. The M/2+M sub-binary digital-to-analog converter is thoroughly studied, and the use of this very low-area circuit in conjunction with a successive approximations algorithm for digital compensation is described. A complete methodology based on this compensation circuit and algorithm is then proposed. The detection and correction of analog circuit imperfections is studied, and a simulation tool allowing the transparent simulation of analog circuits with automatic compensation blocks is introduced. The first application shows how the sub-binary M/2+M structure can be employed as a conventional digital-to-analog converter if two calibration and radix conversion algorithms are implemented. The second application, a SOI 1T DRAM, is then presented. A digital algorithm chooses a suitable reference value that compensates several circuit imperfections together, from the sense amplifier offset to the dispersion of the memory read currents. The third application is the calibration of the sensitivity of a current measurement microsystem based on a Hall magnetic field sensor. Using a variant of the chopper modulation, the spinning current technique, combined with a second modulation of a reference signal, the sensitivity of the complete system is continuously measured without interrupting normal operation. A thermal drift lower than 50 ppm/°C is achieved, which is 6 to 10 times less than in state-of-the-art implementations. Furthermore, the calibration technique also compensates drifts due to mechanical stresses and ageing.
In New York City during the first decades of the new millennium, over two hundred professional musicians play music that combines jazz with Brazilian genres. Blending American and Brazilian music, these musicians continue the legacies of bossa nova, samba jazz, and other styles, while expanding their skills, cultural understandings, and identities. SamBop NYC explores Brazilian jazz in New York City--the music, musicians, cultural issues, and jazz industry. It draws on interviews with over fifty musicians active between the years 2000 and 2020, featuring experts like Eliane Elias, Dom Salvador, Eumir Deodato, Maúcha Adnet, Vinícius Cantuária, Luciana Souza, Duduka Da Fonseca, Romero Lubambo, Anat Cohen, and Cidinho Teixeira. The book provides a new framework to interpret the mutual developments of musicianship, intercultural competencies, and affinities with Brazil and the U.S. To understand the imbalanced demographic diversity among musicians, the book analyses nationality, race, class, and gender among the musicians, as well as their instrumentation and professional dynamics. Navigating these social, cultural, and capitalist forces, the musicians in this book have applied their natural talents, determination, family support, and decades of hard work to pursue their artistic interests and career goals, to audience delight.
The failure of the Maginot Line shocked the world and lead to the sudden collapse of organized French resistance against Germany. Constructed throughout the 1930s, the Maginot Line was supposed to form the ultimate defence against a German invasion of France. However, different sections of the line were built at different times and the strength of various sections varied widely. During their Blitzkrieg invasion, the Germans were able to identify these weak points and focus their attacks against them. This book uses maps and period photographs to tell the story of the five German operations launched against the Maginot Line. While the Germans were able to smash through the lightly defended section of the line along the Meuse River, at other points the line held. Although ultimately the Maginot Line was to prove a failure, the stiff resistance put up by some of the fortresses confirms the fighting ability of the French army during the invasion.
The soldiers' 'football match' and the unofficial ceasefire of Christmas 1914 has become a legend of the Great War, but fraternization between enemy troops was actually widespread. In winter 1914, after months of marching, soldiers on both fronts began to dig trenches, and the war became a battle of attrition in which young men faced each other across what was often only a few yards of the muddy, bombed landscape called No Man's Land. Trapped in this devastation the soldiers of both armies experienced a shared feeling of pointlessness that culminated in the unofficial armistice of Christmas 1914, when German and English soldiers laid down their weapons for a few hours of joyful peace and carol singing. Using original research from the best European historians and discovering a history forgotten or lost in censor reports, officer journals and official reports, these brief moments of humanity are explored on all fronts during the long years of conflict.
This book studies the so far unexplored operation of the international monetary system that prevailed before the emergence of the international gold standard in 1873. Conventional wisdom has it that the emergence of gold as a global anchor was both an inescapable and desirable evolution, given the exchange rate stability it provided and Britain's economic predominance. This study draws on a wealth of archival sources and abundant new statistical evidence (fully detailed in the appendix) to demonstrate that global exchange rate stability always prevailed before the making of the gold standard. This was despite the heterogeneity among national monetary regimes, based on gold, silver, or both. The reason for the stability before the establishment of the gold standard is France's bimetallic system. France, by being in a position to trade gold for silver, and vice versa, effectively pegged the exchange rate between gold and silver at its legal ratio of 15.5. Part I of the book studies exactly how this mechanism worked. Part II focuses on the respective behaviour of private concerns and arbitrageurs on the one hand, and authorities such as the Bank of France on the other hand, in order to underline the constraints and opportunities that were associated with bimetallism as an international regime. Finally, Part III provides a new view on the collapse of bimetallism and its replacement by a gold standard. It is argued that bimetallism might well have survived, and that the emergence of the gold standard was by no means inescapable. Rather, it resulted from a massive coordination failure at both national and international levels - a failure that was a preview of the interwar collapse of the gold standard.
The dramatic events of the twentieth century have often led to the mass migration of intellectuals, professionals, writers, and artists. One of the first of these migrations occurred in the aftermath of the Russian Revolution, when more than a million Russians were forced into exile. With this book, Marc Raeff, one of the world's leading historians of Russia, offers the first comprehensive cultural history of the "Great Russian Emigration." He examines the social and institutional structure of the emigration and describes its rich cultural and intellectual life. He points out that what distinguishes this emigration from other such episodes in European history is the extent to which the emigres succeeded in reconstituting and preserving their cultural creativity in the West. The flourishing Russian communities of Paris, Berlin, Prague and Kharbin not only enriched Russian arts and letters, but also significantly influenced the culture of their Western hosts, and Raeff concludes with an assessment of their impact on the development of modern Western and Soviet culture.
Methodology for the Digital Calibration of Analog Circuits and Systems shows how to relax the extreme design constraints in analog circuits, allowing the realization of high-precision systems even with low-performance components. A complete methodology is proposed, and three applications are detailed. To start with, an in-depth analysis of existing compensation techniques for analog circuit imperfections is carried out. The M/2+M sub-binary digital-to-analog converter is thoroughly studied, and the use of this very low-area circuit in conjunction with a successive approximations algorithm for digital compensation is described. A complete methodology based on this compensation circuit and algorithm is then proposed. The detection and correction of analog circuit imperfections is studied, and a simulation tool allowing the transparent simulation of analog circuits with automatic compensation blocks is introduced. The first application shows how the sub-binary M/2+M structure can be employed as a conventional digital-to-analog converter if two calibration and radix conversion algorithms are implemented. The second application, a SOI 1T DRAM, is then presented. A digital algorithm chooses a suitable reference value that compensates several circuit imperfections together, from the sense amplifier offset to the dispersion of the memory read currents. The third application is the calibration of the sensitivity of a current measurement microsystem based on a Hall magnetic field sensor. Using a variant of the chopper modulation, the spinning current technique, combined with a second modulation of a reference signal, the sensitivity of the complete system is continuously measured without interrupting normal operation. A thermal drift lower than 50 ppm/°C is achieved, which is 6 to 10 times less than in state-of-the-art implementations. Furthermore, the calibration technique also compensates drifts due to mechanical stresses and ageing.
This will help us customize your experience to showcase the most relevant content to your age group
Please select from below
Login
Not registered?
Sign up
Already registered?
Success – Your message will goes here
We'd love to hear from you!
Thank you for visiting our website. Would you like to provide feedback on how we could improve your experience?
This site does not use any third party cookies with one exception — it uses cookies from Google to deliver its services and to analyze traffic.Learn More.