Since their development in the 1980s, IGBTs have become established as the standard
component inmany different power electronics applications. They cover a performance
range from a few hundred watts to several megawatts. In the course of their
development, different IGBTs have separated out into different packages so that, for
example, there are now IGBTs as discrete components in, for example, TO-247
packages, IGBT in high-power modules, and complex designs that include both IGBTs
and other electronic components and functions.
The aim of this book is to make the basics specific to IGBTs as they interact with the
application accessible to readers. Inmany published works, practical details and expert
knowledge are often left out or are not presented in a way that clearly shows how they
relate to the application. This book brings together detailed information about power
electronics in relation to IGBTs, supplemented and complemented by our own
experience in the field.
After explaining the internal structure and the IGBT variants derived from the prototype
or basicmodel, we then examine how the package technology is constructed. Then, the
book discusses electrical and thermal matters, getting to grips with gate drives for
IGBTs, including their specific application and parallel connection. This broad coverage
of the applications also includes the practicalities of the switching behaviour of IGBTs,
basic circuit arrangements, application examples, and rules of design. To complement
that, we also look at measurement engineering and signal electronics. The conclusion
deals with the requirements of IGBTs and IGBT modules in terms of quality and
In presenting each chapter, we have tried as far as possible to present information
visually and avoid using more equations than necessary. There are more than 500
figures and tables. However, equations are used if they are the best way to explain
basic principles or are relevant to the everyday use of IGBTs.We hope thereby to have
achieved agood balance between pure theory and practice-oriented application.
We owe a particular debt of thanks to our families and friends, as work on this book –
duringour already limited leisure time – took several years.
We would also like to thank Professor Leo Lorenz, Jost Wendt, Hubert Ludwig and
MartinHierholzer, aswell as InfineonTechnologies, for their support inmaking this book
Warstein, summer 2010
Although utmost care has been taken to ensure accuracy in presentation and content,
no work can claim to be error-free and complete. Therefore, suggestions for
improvement are cordiallywelcomed.