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This book introduces electric circuits with variableloads and voltage regulators. It allows to define invariant relationships forvarious parameters of regime and circuit sections and to prove the conceptscharacterizing these circuits. The book presents the fundamentals of electriccircuits and develops circuit theorems. Generalized equivalent circuitsare introduced. Projective geometry is used for the interpretation of changesof operating regime parameters. Expressions of normalized regime parameters andtheir changes are presented. Convenient formulas for the calculation ofcurrents are given. Parallel voltage sources and the cascade connection ofmulti-port networks are described. The two-value voltage regulationcharacteristics of loads with limited power of voltage source is considered.
This second edition is extended and contains additional chapters on circuits withnon-linear regulation curves, circuits with non-linear load characteristics,concepts of power-source and power-load elements with two-valuedcharacteristics, quasi-resonant voltage converters with self-limitation ofcurrent as well as the similarity of characteristics of converters andelectronic devices.
This book is useful to engineers, researchers andgraduate students who are interested in the basic electric circuit theory andthe regulation and monitoring of power supply systems.
List of contents
Introduction.- Part I: Electrical Circuits with One Load- Projective Coordinates ofa Straight Line Point.- Operating Regimesof an Active Two-Pole. Display of Projective Geometry.- Generalized EquivalentCircuit of an Active Two-Pole with a Variable element.- Two-Port Circuits.- Parallelingof Limited Capacity Voltage Sources.- Part II : Multi-port Circuits - Projective Coordinates of a Point on the Planeand Space.- Operating Regimes of an Active Multi-port.- Recalculation of Load Currentsof Active Multi-ports.- Passive Multi-PortCircuits.- GeneralizedEquivalent Circuit of a Multi-port.- Part III: Circuits with Non-LinearRegulation Curves.- Regulation of Load Voltages.- Stabilization of LoadVoltages.- Pulse-Width Modulation Regulators.- Part IV: Circuits withNon-Linear Load Characteristics.- Power-Source and Power-Load Elements.- Quasi-ResonantVoltage Converter with Self-Limitation of the Load Current. Similarity of LoadCharacteristics of Some Electronic Devices.- Conclusions.
About the author
A. Penin graduated from Radio Department Polytechnic Institute in 1974,
Odessa, Ukraine. His engineering interest relates to power electronics. He
worked (1980-2006) in the design office of solid-state electronics of the Academy
of Sciences of Moldova. His speciality is the elaboration of power supply systems. From 2006 he has been working in the Institute of Electronic Engineering and Nanotechnologies of the Academy of
Sciences of Moldova. He continues independent theoretical research in electric circuit theory with variable
regimes. He is a senior research assistant, PhD (2011). The author has more than 60 publications, 40 patents of Moldova, one European patent, and one
book.
Summary
This book introduces electric circuits with variable
loads and voltage regulators. It allows to define invariant relationships for
various parameters of regime and circuit sections and to prove the concepts
characterizing these circuits. The book presents the fundamentals of electric
circuits and develops circuit theorems. Generalized equivalent circuits
are introduced. Projective geometry is used for the interpretation of changes
of operating regime parameters. Expressions of normalized regime parameters and
their changes are presented. Convenient formulas for the calculation of
currents are given. Parallel voltage sources and the cascade connection of
multi-port networks are described. The two-value voltage regulation
characteristics of loads with limited power of voltage source is considered.
This second edition is extended and contains additional chapters on circuits with
non-linear regulation curves, circuits with non-linear load characteristics,
concepts of power-source and power-load elements with two-valued
characteristics, quasi-resonant voltage converters with self-limitation of
current as well as the similarity of characteristics of converters and
electronic devices.
This book is useful to engineers, researchers and
graduate students who are interested in the basic electric circuit theory and
the regulation and monitoring of power supply systems.
