The study of power electronics draws upon a broad range of knowledge and often required a fair amount of experience. This suggests that laboratory instruction should be an integral component of a power electronics curriculum. However, before a single watt is delivered, the student must understand not only the operation of the converter topology but also more advanced concepts such as control th...

Design techniques for sigma-delta modulators from communications are applied and adapted to improve the spectral characteristics of high frequency power electronic applications. A high frequency power electronic circuit can be regarded as a quantizer in an interpolative Σ∆ modulator. We review one dimensional sigma-delta modulators and then generalize to the hexagonal sigma-delta modulators tha...

In this paper, modeling and simulation of a three-phase inverter (DC-to-AC converter) is studied by means of graphical tools, SaberSketch and Advanced Continuous Simulation Language / Graphic Modeller (ACSL/GM). First, SaberSketch simulation of the inverter with ideal switches is presented. Then, the simulation is repeated by replacing the ideal switches with built-in BJT (Bipolar Junction Tran...

This book provides, for the first time, a broad and deep treatment of the fields of both ultra low power electronics and bioelectronics. It discusses fundamental principles and circuits for ultra low power electronic design and their applications in biomedical systems. It also discusses how ultra energy-efficient cellular and neural systems in biology can inspire revolutionary low power archite...

The presented paper gives an overview of basic principles and recent trends in power management electronics for thermoelectric energy harvesting. Energy harvesting systems are a modern way how to feed the autonomous devices on-site using ambient energy. The ambient energy in the case of thermoelectric generators is represented by temperature gradients. Different temperatures are applied to the ...

This paper shows how power electronics circuits, electric motors and drives, can be simulated with modern simulation programs. The focus will be on PSpice, which is one of the most widely used general-purpose simulation programs. A simulation example is presented, and the results are compared with those obtained with Power System Simulation Tool based on Simulink.

The Virtual Test Bed (VTB) is both a practical user tool for multidisciplinary system simulation and also an environment for exploring and developing new simulation capabilities, and for pushing beyond the existing boundaries of industrial simulation solutions. We provide here an overview of several recent advances in simulation capabilities that have been implemented in the VTB software.

Since the 1990’s, mobile computing has transformed its penetration from niche markets and early prototypes to ubiquity. Personal Digital Assistants (PDAs) evolved from GRiD’s PalmPad and Apple’s Newton in 1993 to the Palm, Handspring, and Microsoft-based models that support the multi-billion dollar industry today. While BellSouth/IBM’s Simon may have been the only mobile phone to offer e-mail c...

Switched circuits in power electronics by their nature present hybrid behavior. Such circuits can be described by a set of discrete states with associated continuous dynamics. A control objective, usually regulation of the output in the face of disturbances in the continuous system, is accomplished by choosing among discrete states. We describe a hybrid systems perspective of several common tas...

† Fuji Electric Co., Ltd following a parallel off (2) Isolated operation detection function An isolated operation detection function is essential for connecting to a power system. Isolated operation is the state in which an isolated system that has been disconnected from the power system is supplied with electricity from the output of a distributed power source only. In the isolated operating s...