Описание: This book presents a novel, automated, accurate and unified scheme to design and determine the performance characteristics of standalone planar, spiral inductors and multiple coupled planar spiral inductors (as in embedded transformers), for RF/microwave MMIC designers.
Описание: This thesis addresses a novel application of network modelling methodologies to power transformers. It develops a novel thermal model and compares its performance against that of a commercial computational fluid dynamics (CFD) code, as well as in experiments conducted in a dedicated setup built exclusively for this purpose. Hence, the thesis cross-links three of the most important aspects in high-quality research: model development, simulation and experimental validation.Network modelling is used to develop a tool to simulate the thermal performance of power transformers, widely acknowledged to be critical assets in electrical networks. After the strong de-regulation of electricity markets and de-carbonization of worldwide economies, electrical networks have been changing fast. Both asset owners and equipment manufacturers are being driven to develop increasingly accurate modelling capabilities in order to optimize either their operation or their design. Temperature is a critical parameter in every electric machine and power transformers are no exception. As such, the thesis is relevant for a wide range of stakeholders, from utilities to power transformer manufacturers, as well as researchers interested in the energy industry. It is written in straightforward language and employs a highly pedagogic approach, making it also suitable for non-experts.
Автор: Nair K. R. M. Название: Power and Distribution Transformers: Practical Design Guide ISBN: 0367535939 ISBN-13(EAN): 9780367535933 Издательство: Taylor&Francis Рейтинг: Цена: 25265.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book is a useful guide for practicing engineers to undertake new designs, cost optimization, design automation etc., without the need for external consultancy. It gives "step by step" procedures of designing a transformer so that engineers without prior knowledge of design can acquire reasonable proficiency of designing a transformer.
Описание: These elements allow greatly improved levels of performance in Si monolithic low-noise amplifiers, power amplifiers, up-conversion and down-conversion mixers and local oscillators. Accurate knowledge of inductance values, quality factor (Q) and the influence of ad- cent elements (on-chip proximity effects) and substrate losses is essential.
Автор: Minkner Название: The Technology of Instrument Transformers ISBN: 3658348623 ISBN-13(EAN): 9783658348625 Издательство: Springer Рейтинг: Цена: 9083.00 р. Наличие на складе: Поставка под заказ.
Описание: Existing instrument transformer technologies as well as new measuring principles for current and voltage measurement are described in this book. The properties of conventional current and voltage transformer as well as the dimensioning are discussed in details out of the long experience of the authors. Especially the dielectric dimensioning and the used materials are discussed. Beside this an overview over new modern measuring principles is given and the technology of low-power instrument transformer, and RC-dividers are shown.
Автор: Robert E. Stein Название: Electric Power System Components ISBN: 9401713960 ISBN-13(EAN): 9789401713962 Издательство: Springer Рейтинг: Цена: 13974.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: There are good reasons why the subject of electric power engineering, after many years of neglect, is making a comeback in the undergraduate curriculum of many electrical engineering departments.
The only practical audio transformer design & construction manual in English language
The design of chokes, small power transformers (those used in tube amplifiers and preamplifiers) and audio (output and interstage) transformers is such a specialist topic that even most electronics engineers would not even know how and where to start, let alone produce a finished, working transformer.
Commercial transformers and chokes are available, but most are very expensive, and those that are reasonably priced usually aren't of best quality. Plus, since they are such heavy and bulky components, international postage or courier costs are significant.
The physical principles behind transformer operation are quite complex and mathematical modeling of transformers require strong mathematical skills, deterring amateurs and DIY enthusiasts from studying the subject. While some basic understanding of operational principles is necessary, luckily, transformer design can be greatly simplified by using a few basic rules-of-thumb formulas.
Likewise, once you have a finished design (a detailed winding diagram), transformer winding & assembly is surprisingly easy. Apart from the materials (such as bobbins, laminations, insulation and magnet wire), all you need is a simple winding machine (can be of DIY variety), good hand-eye coordination and patience.
Your DIY transformers will almost always be significantly cheaper than commercial alternatives and often of better quality and better sounding than famous names transformers costing many hundreds and even thousands of dollars each.
There are more than 40 ( ) detailed designs of various power, output & interstage transformers and filtering, grid & anode chokes in this unique manual. Even if you don't feel like investing time and effort into mastering the art of transformer making, simply take those winding diagrams to any transformer making shop and have your transformers professionally made for a fraction of the price of commercial alternatives.
This practical design & construction manual is richly and professionally illustrated with photographs of transformers, circuit diagrams, winding diagrams, reference tables, graphs and charts. These valuable illustrations make it faster and easier to comprehend issues and concepts. A picture is truly worth a thousand words. Indeed, all the information required to design, wind and test chokes, power and audio transformers is within these covers.
CONTENTS:
PHYSICAL FUNDAMENTALS OF MAGNETIC CIRCUITS AND TRANSFORMERS
FILTERING CHOKES (INDUCTORS)
TRANSFORMER MATERIALS, CONSTRUCTION METHODS AND ISSUES
MAINS (POWER) TRANSFORMERS
PHYSICAL FUNDAMENTALS OF AUDIO TRANSFORMERS
SINGLE-ENDED OUTPUT TRANSFORMERS
PUSH-PULL OUTPUT TRANSFORMERS
SPECIAL MAGNETIC COMPONENTS: LOW POWER INPUT, PREAMP OUTPUT & INTERSTAGE TRANSFORMERS, GRID & ANODE CHOKES
OUTPUT AND INTERSTAGE TRANSFORMERS FOR TUBE GUITAR AMPS
TRANSFORMER TESTS & MEASUREMENTS
Автор: Valchev, Vencislav Cekov Название: Inductors and Transformers for Power Electronics ISBN: 1574446797 ISBN-13(EAN): 9781574446791 Издательство: Taylor&Francis Рейтинг: Цена: 28327.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: The necessity and importance of the standardization of electrical apparatus was recognized in Germany as early as 1894 and . the first rules ("Sicherheitsvorschriften f r elektrische Starkstromanlagen gegen Feuersgefahr") came into force in that country in 189S. In the U. S. of America the first discussion on Standardization of Generators, Motors and Transformers took place in 1898 which resulted in the appointment of a Committee and the subsequent acceptance of the rules proposed by it. In England the BritishEngineeringStandards Association was formed in IgOI. In connection with the British Standards an explanatory note appears necessary: The B. E. S. A. 's rules have for many years been the only generally accepted Standards. Since 19I3 the British Electrical and Ailied Manufacturers Association, representing the most important powerful British manufacturing firms, have issued Standardization Rules of their own which have attained considerable commercial importance, A special edition of these rules has been issued for export work which on the whole are guided by ideas similar to those embodied in the B. E. S. A. rules. As far as can be gleaned from the article in the th "Electrical Review" (Vol. 86 Nr. 2, 216, April 16 1920) it isintended to publish a new revision of the B. E. S. A. 's rules which will probably contain some of the recommendations of the B. E. A. M. A., so that this will probably mean the return to one single system of Standards for Britain.
Автор: Fei Yuan Название: CMOS Active Inductors and Transformers ISBN: 1441945563 ISBN-13(EAN): 9781441945563 Издательство: Springer Рейтинг: Цена: 20896.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This is a comprehensive examination of the principles and implementation of CMOS active inductors and transformers, and a review of emerging applications in high-speed analog signal processing and data communications over wire and wireless channels.
Описание: These elements allow greatly improved levels of performance in Si monolithic low-noise amplifiers, power amplifiers, up-conversion and down-conversion mixers and local oscillators. Accurate knowledge of inductance values, quality factor (Q) and the influence of ad- cent elements (on-chip proximity effects) and substrate losses is essential.
Автор: Jim, Fyvie Название: Design aspects of power transformers and reactors ISBN: 1845496833 ISBN-13(EAN): 9781845496838 Издательство: Неизвестно Рейтинг: Цена: 3494.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
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