Gallium nitride (GaN) is an emerging technology that promises to displace silicon MOSFETs in the next generation of power transistors. As silicon approaches its performance limits, GaN devices offer superior conductivity and switching characteristics, allowing designers to greatly reduce system power losses, size, weight, and cost. This timely second edition has been substantially expanded to keep students and practicing power conversion engineers ahead of the learning curve in GaN technology advancements. Acknowledging that GaN transistors are not one-to-one replacements for the current MOSFET technology, this book serves as a practical guide for understanding basic GaN transistor construction, characteristics, and applications. Included are discussions on the fundamental physics of these power semiconductors, layout and other circuit design considerations, as well as specific application examples demonstrating design techniques when employing GaN devices. With higher-frequency switching capabilities, GaN devices offer the chance to increase efficiency in existing applications such as DC–DC conversion, while opening possibilities for new applications including wireless power transfer and envelope tracking. This book is an essential learning tool and reference guide to enable power conversion engineers to design energy-efficient, smaller and more cost-effective products using GaN transistors. Key features: Written by leaders in the power semiconductor field and industry pioneers in GaN power transistor technology and applications. Contains useful discussions on device–circuit interactions, which are highly valuable since the new and high performance GaN power transistors require thoughtfully designed drive/control circuits in order to fully achieve their performance potential. Features practical guidance on formulating specific circuit designs when constructing power conversion systems using GaN transistors – see companion website for further details. A valuable learning resource for professional engineers and systems designers needing to fully understand new devices as well as electrical engineering students.
With a full explanation on the basic principles of marketing, this guidebook helps readers answer such questions as What is marketing? What is a marketing forecast? and What is the best way to conduct market research? Written by professionals for students and entrepreneurs, this text also features international case studies, numerous up-to-date examples of the latest developments and trends in marketing, and tried and tested information that helps students learn.
What is marketing? How is value created in the marketing process? How can I develop a marketing plan? How do I conduct market research? Is the Internet the best way to help me to market my product or service, or is it a complementary distribution channel? Introduction to Marketing answers these questions and many more. This completely updated fourth edition comprises twelve chapters that focuses inter alia on Consumer Behaviour, Market Segmentation, Targeting and Positioning, Integrated Marketing, Internet marketing and Service Marketing -- information you cannot afford to be without. Special features and benefits include: Well-researched South African and international case studies with questions to illustrate how the theory can be put into practice; Up-to-date examples and advice to ensure you keep abreast of the latest developments and trends, thereby giving you the tools to succeed in the work situation; Tried-and-tested information and easy-to-use format to simplify the learning process; An educator's manual to assist the lecturer. Written by professionals from two of the largest tertiary institutions in South Africa this fourth edition, has been refined through valuable feedback received from academics and practitioners alike. It is suitable for anyone studying marketing for the first time, whether in the formal or informal sectors. It will also prove to be invaluable to any entrepreneur grappling with marketing issues.
An up-to-date, practical guide on upgrading from silicon to GaN, and how to use GaN transistors in power conversion systems design This updated, third edition of a popular book on GaN transistors for efficient power conversion has been substantially expanded to keep students and practicing power conversion engineers ahead of the learning curve in GaN technology advancements. Acknowledging that GaN transistors are not one-to-one replacements for the current MOSFET technology, this book serves as a practical guide for understanding basic GaN transistor construction, characteristics, and applications. Included are discussions on the fundamental physics of these power semiconductors, layout, and other circuit design considerations, as well as specific application examples demonstrating design techniques when employing GaN devices. GaN Transistors for Efficient Power Conversion, 3rd Edition brings key updates to the chapters of Driving GaN Transistors; Modeling, Simulation, and Measurement of GaN Transistors; DC-DC Power Conversion; Envelope Tracking; and Highly Resonant Wireless Energy Transfer. It also offers new chapters on Thermal Management, Multilevel Converters, and Lidar, and revises many others throughout. Written by leaders in the power semiconductor field and industry pioneers in GaN power transistor technology and applications Updated with 35% new material, including three new chapters on Thermal Management, Multilevel Converters, Wireless Power, and Lidar Features practical guidance on formulating specific circuit designs when constructing power conversion systems using GaN transistors A valuable resource for professional engineers, systems designers, and electrical engineering students who need to fully understand the state-of-the-art GaN Transistors for Efficient Power Conversion, 3rd Edition is an essential learning tool and reference guide that enables power conversion engineers to design energy-efficient, smaller, and more cost-effective products using GaN transistors.
This accessible and comprehensive textbook draws on the reader's own experience of leadership in an employment context. The text adopts a critical and thematic approach to the discussion of core debates and emerging topics, while offering a wealth of case studies and other learning tools to help students put leadership theory into practice.
The South African Language Rights Monitor (SALRM) Project surveys the mainstream newspapers of South Africa with a view to compile annual reports on the developments on the language front in the country. While the main focus is on language rights and language (rights) activism, the yearly Monitor also covers other language-related problems, including name changes, as well as aspects of language promotion. For anybody interested in subjects ranging from the (proposed) renaming of Bloemfontein, Louis Trichardt, Pretoria, Port Elizabeth and Johannesburg International Airport to the incident of Johann Rupert withdrawing his advertisements from a British magazine, and from the saga on mother-tongue education at schools to the language policy in the judicial system and the success of the South African films Yesterday and U-Carmen eKhayelitsha, the SALRM 2005 provides a rich source of information. The SALRM Project is housed in the Department of Language Management and Language Practice at the University of the Free State.
The South African Language Rights Monitor (SALRM) Project surveys the mainstream newspapers of South Africa with a view to compile annual reports on the developments on the language front in the country. While the main focus is on language rights and language (rights) activism, the yearly Monitor also covers other language-related problems, including name changes, as well as aspects of language promotion. For anybody interested in subjects ranging from the (proposed) renaming of Bloemfontein, Louis Trichardt, Pretoria, Port Elizabeth and Johannesburg International Airport to the incident of Johann Rupert withdrawing his advertisements from a British magazine, and from the saga on mother-tongue education at schools to the language policy in the judicial system and the success of the South African films Yesterday and U-Carmen eKhayelitsha, the SALRM 2005 provides a rich source of information. The SALRM Project is housed in the Department of Language Management and Language Practice at the University of the Free State.
The focus of this text is on practical examples illustrating the everyday application of marketing in South Africa. The book adopts a step-by-step approach to the subject and self-evaluation is encouraged at the end of each chapter to help readers test their understanding.
With a full explanation on the basic principles of marketing, this guidebook helps readers answer such questions as What is marketing? What is a marketing forecast? and What is the best way to conduct market research? Written by professionals for students and entrepreneurs, this text also features international case studies, numerous up-to-date examples of the latest developments and trends in marketing, and tried and tested information that helps students learn.
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