A great man is one who collects knowledge the way a bee collects honey and uses it to help people overcome the difficulties they endure - hunger, ignorance and disease!
- Nikola Tesla

Remember, remember always, that all of us, and you and I especially, are descended from immigrants and revolutionists.
- Franklin Roosevelt

While their territory has been devastated and their homes despoiled, the spirit of the Serbian people has not been broken.
- Woodrow Wilson

Slobodan Ćuk

BSEE, Belgrade University, Yugoslavia, 1970
MSEE, University of Santa Clara, CA, USA 1974
Ph.D., Caltech, CA, USA, 1976

Dr. Slobodan Ćuk was a full-time Professor of Electrical Engineering at the California Institute of Technology until January 1, 2000. During that time, more than 30 students obtained their Ph.D. degree in Power Electronics under Dr. Ćuk's guidance. Many of them are now leading researchers and/or Professors of Power Electronics in the U.S. and abroad.

Dr. Ćuk won a coveted IR*100 Award in 1980 from the Industrial Research Magazine for the invention of a new and patented switching converter topology and several of its extensions, which are now known as the ĆUKonverter technology. For the invention of Integrated Magnetics and expediting the development of switched-mode power converters, Dr. Ćuk obtained the prestigious 1991 Edward Longstreth Medal from the Franklin Institute, which was for the first time in its 100 years history awarded to researchers in Power Electronics. His publications include over 100 scientific papers in the Power Electronics field and a three-volume book on Advances in Switched-Mode Power Conversion.

Over a span of 20 years, Dr. Ćuk has taught a number of public and in-house courses in the United States, Europe and Far East, and gave a number of tutorial seminars at leading Power Electronics conferences throughout the world. These courses and seminars have been attended by over 4,000 Power Electronics specialists.

In 1979, Dr. Ćuk founded TESLAco with the charter to apply the basic research results developed at Caltech to practical commercial and military designs. He holds over 30 patents related to new switched-mode power conversion concepts.

He received Franklin laureate award for pioneering and expediting the development of integrated magnetics and switched-mode power conversion.

From TESLAco


Modelling, analysis, and design of switching converters

Citation

Cuk, Slobodan (1977) Modelling, analysis, and design of switching converters. Dissertation (Ph.D.), California Institute of Technology. http://resolver.caltech.edu/CaltechETD:etd-03262008-110336

Abstract

The principal objective of this work on modeling and analysis of switching dc-to-dc converters and regulators is to obtain a linear model (either through state-space or linear circuit description), subject to appropriate restrictions, for the inherently nonlinear power state in which the dc conversion is accomplished. A general unified approach to modeling and analysis of switching dc-to-dc converters is developed which is directly applicable to any dc-to-dc operating in either of two conduction modes (continuous or discontinuous inductor current), and which results in a final dynamic linear model either in terms of state-space equations or in terms of their corresponding linear circuit models. In particular, in Part I this analysis technique, called state-space averaging, is applied to the continuous conduction mode of converter operation, while in Part II appropriate extension of the method to the discontinuous conduction mode is made. In each case, the culmination of modeling and analysis is achieved in the development of canonical circuit models which represent any such converter regardless of its detailed configuration.

The insights that emerge from the general state-space modeling approach (Parts I and II) lead in Parts III and IV to the design of new converter topologies through the study of generic properties of the cascade connection of basic buck and boost converters. This study paves the way in Part IV to the discovery of a new switching converter based upon capacitive rather than the usual inductive energy transfer. The new converter is shown to have substantial advantages over the conventional converters in its class in efficiency, performance, and also in size and weight.

Bothe the state-space averaged models and their corresponding circuit realizations provide the circuit designer with a powerful tool for analysis of existing converters as well as for synthesis of new converter topologies.

Thesis File (PDF 10 MB)

From CaltechTHESIS - A Caltech Library Service


SA

 

People Directory

John Alexander Vidović

John Vidovic is a young musician and composer whose talents, work with students, and presence in various musical circles have already created a significant community impact. Mr. Vidovic specializes in classical guitar, music theory and composition. He has been playing guitar for 13 years and has accumulated 11 years of experience as a self-taught pianist.

John studied guitar with Michael McChesney and Barrios scholar Richard Stover, as well as voice with Christopher Bengochea. He graduated from UCLA with a BA in music composition. As a composer, he has 9 years of experience in composition ranging from solo works to large ensembles, including chorus, wind ensemble and orchestra. He has also conducted original choral composition under the direction of Maestro Donald Neuen with the UCLA Chamber Singers in Royce Hall in June 2011. Mr. Vidovic composed choral works for the West Valley College Chamber singers performed at the Finale concerts in May 2009 and December 2011. His main influences include music from Latin America, Romantic era music, and folk music from Eastern Europe.

.
Read more ...

Publishing

Sailors of the Sky

A conversation with Fr. Stamatis Skliris and Fr. Marko Rupnik on contemporary Christian art

In these timely conversations led by Fr. Radovan Bigovic, many issues are introduced that enable the contemporary reader to deepen and expand his or her understanding of the role of art in the life of the Church. Here we find answers to questions on the crisis of contemporary ecclesiastical art in West and East; the impact of Impressionism, Expressionism, Cubism, Surrealism and Abstract painting on contemporary ecclesiastical painting; and a consideration of the main distrinction between iconography and secular painting. The dialogue, while resolving some doubts about the difference between iconography, religious painting, and painting in general, reconciles the requirement to obey inconographic canons with the freedom essential to artistic creativity, demonstrating that obedience to the canons is not a threat to the vitatlity of iconography. Both artists illumine the role of prayer and ascetisicm in the art of iconography. They also mention curcial differences between iconography in the Orthodox Church and in Roman Catholicism. How important thse distinctions are when exploring the relationship between contemporary theology and art! In a time when postmodern "metaphysics' revitalizes every concept, these masters still believe that, to some extent, Post-Modernism adds to the revitatiztion of Christian art, stimulating questions about "artistic inspiration" and the essential asethetic categories of Christian painting. Their exceptionally wide, yet nonetheless deep, expertise assists their not-so-everday connections between theology, ar, and modern issues concerning society: "society" taken in its broader meaning as "civilization." Finally, the entire artistic project of Stamatis and Rupnik has important ecumenical implications that aswer a genuine longing for unity in the Christian word.

The text of this 94-page soft-bound book has been translated from the Serbian by Ivana Jakovljevic, Fr. Gregory Edwards, and Andrijana Krstic. Published by Sebastian Press, Western American Diocese of the Serbian Orthodox Church, Contemporary Christian Thought Series, number 7, First Edition, ISBN: 978-0-9719505-8-0