Single Stage Resonant Converter Topologies For Off Line Power Supply Applications

Download Single Stage Resonant Converter Topologies For Off Line Power Supply Applications full books in PDF, epub, and Kindle. Read online Single Stage Resonant Converter Topologies For Off Line Power Supply Applications ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!

Single-stage Resonant Converter Topologies for Off-line Power Supply Applications

Author : Dara O'Sullivan
Publisher :
ISBN 13 :
Total Pages : 227 pages
Book Rating : 4.:/5 (795 download)

DOWNLOAD NOW!

Book Synopsis Single-stage Resonant Converter Topologies for Off-line Power Supply Applications by : Dara O'Sullivan

Download or read book Single-stage Resonant Converter Topologies for Off-line Power Supply Applications written by Dara O'Sullivan and published by . This book was released on 2001 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, considerable research activity has been conducted in the area of single-stage power factor corrected ac/dc converters. In these circuits, line current power factor correction and output voltage regulation for good transient response, are performed in a single converter stage. The general consensus of opinion has been that the single-stage approach has cost and efficiency advantages at unity power factor operation, and cost effective compliance with the EN61000-3-2 harmonic standard is regarded as a satisfactory design goal. This research is therefore concerned with the investigation of novel, single-stage, EN61000-3-2-compliant ac/dc converters, for 100W output, with particular emphasis on low voltage applications and resonant conversion. It is felt that single-stage ac/dc power conversion to the expected microprocessor voltage levels of 1-2V is unlikely, but that single-stage conversion to 5V/3.3V levels will have a wide range of applications. The emphasis on resonant conversion is prompted by the need to achieve high density ac/dc converters comparable with their ac/dc counterparts. Resonant operation will remove the frequency dependent losses in the semiconductor components, allowing significantly higher than normal frequencies to be employed and hence, enabling the size of the magnetic components to be reduced. Three novel topologies are derived in this thesis, all of which are based on a resonant circuit employed in compact fluorescent lighting applications. In all of these circuits, a resonant capacitor is connected directly across the input diode bridge rectifier. Through the operation of the resonant circuit resonant current is drawn directly from the ac utility over much of the line cycle. While this line current is not sinusoidal, it does comply with the EN61000-3-2 harmonic limits. Closely regulated output voltagecontrol is implemented in the three circuits. An intuitive, yet powerful analysis method, termed Rectifier-Compensated Fundamental Mode Approximation (RCFMA) Analysis, is applied to the converters. This is shown to be an accurate and insightful method, and much simpler to use than the highly accurate, but unwieldy, modal analysis technique. This analysis method is extended to provide a small-signal model for two of the converters. This proves very useful in the design of the control loop compensation. Two of the novel converters are extensively analysed, design procedures are developed and extensive prototype testing is performed. The prototypes designed are for European input voltage/5V output, and universal input voltage/3.3V output respectively.

Resonant Power Converters

Author : Marian K. Kazimierczuk
Publisher : John Wiley & Sons
ISBN 13 : 1118585860
Total Pages : 632 pages
Book Rating : 4.1/5 (185 download)

DOWNLOAD NOW!

Book Synopsis Resonant Power Converters by : Marian K. Kazimierczuk

Download or read book Resonant Power Converters written by Marian K. Kazimierczuk and published by John Wiley & Sons. This book was released on 2012-11-07 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to resonant energy conversion in power electronics. It is a practical, systematic guide to the analysis and design of various dc-dc resonant inverters, high-frequency rectifiers, and dc-dc resonant converters that are building blocks of many of today's high-frequency energy processors. Designed to function as both a superior senior-to-graduate level textbook for electrical engineering courses and a valuable professional reference for practicing engineers, it provides students and engineers with a solid grasp of existing high-frequency technology, while acquainting them with a number of easy-to-use tools for the analysis and design of resonant power circuits. Resonant power conversion technology is now a very hot area and in the center of the renewable energy and energy harvesting technologies.

Resonant Power Converters

Author : Marian K. Kazimierczuk
Publisher : Wiley-Interscience
ISBN 13 :
Total Pages : 520 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!

Book Synopsis Resonant Power Converters by : Marian K. Kazimierczuk

Download or read book Resonant Power Converters written by Marian K. Kazimierczuk and published by Wiley-Interscience. This book was released on 1995-05 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Resonant power converters have many applications in the computer industry, telecommunications and in industrial electronics. Their advantage over traditional converters lies in their ability to transform power at very high frequencies. This book discusses resonant power converters.

Switching Power Supplies A - Z

Author : Sanjaya Maniktala
Publisher : Elsevier
ISBN 13 : 0080461557
Total Pages : 523 pages
Book Rating : 4.0/5 (84 download)

DOWNLOAD NOW!

Book Synopsis Switching Power Supplies A - Z by : Sanjaya Maniktala

Download or read book Switching Power Supplies A - Z written by Sanjaya Maniktala and published by Elsevier. This book was released on 2006-06-22 with total page 523 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design of Switching Power Supplies has become one of the most crucial aspects of power electronics, particularly in the explosive market for portable devices. Unfortunately, this seemingly simple mechanism is actually one of the most complex and under-estimated processes in Power Electronics. Switching power conversion involves several engineering disciplines: Semiconductor Physics, Thermal Management, Control Loop theory, Magnetics etc, and all these come into play eventually, in ways hard for non-experts to grasp. This book grows out of decades of the author’s experience designing commercial power supplies. Although his formal education was in physics, he learned the hard way what it took to succeed in designing power supplies for companies like Siemens and National Semiconductor. His passion for power supplies and his empathy for the practicing or aspiring power conversion engineer is evident on every page. * The most comprehensive study available of the theoretical and practical aspects of controlling and measuring Electromagnetic Interference in switching power supplies, including input filter instability considerations. * Step-by-step and iterative approach for calculating high-frequency losses in forward converter transformers, including Proximity losses based on Dowell's equations. * Thorough, yet uniquely simple design flow-chart for building DC-DC converters and their magnetic components under typical wide-input supply conditions * Step-by-step, solved examples for stabilizing control loops of all three major topologies, using either transconductance or conventional operational amplifiers, and either current-mode or voltage-mode control.

Single-Inductor Multiple-Output Converters

Author : Albert Ting Leung Lee
Publisher : CRC Press
ISBN 13 : 1000487725
Total Pages : 314 pages
Book Rating : 4.0/5 (4 download)

DOWNLOAD NOW!

Book Synopsis Single-Inductor Multiple-Output Converters by : Albert Ting Leung Lee

Download or read book Single-Inductor Multiple-Output Converters written by Albert Ting Leung Lee and published by CRC Press. This book was released on 2021-12-17 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides a comprehensive overview of Single-Inductor Multiple-Output Converters from both theoretical and practical perspectives. Based on the authors’ in-depth research, the volume covers not only conventional SIMO DC-DC converters but also the new generations of SIMO such as SIMO AC-DC converters, SIMO DC-AC converters (or SIMO inverters), and the latest SIMO hybrid converters. This book offers a holistic and systematic presentation of all types of SIMO converters, encompassing the derivation of the circuit topologies, the definition of key concepts, detailed discussion of theoretical underpinnings, design methodology and control schemes, as well as design considerations and techniques that enable practical implementation. Specific examples of real-world applications of SIMO converters are also provided. The volume offers a comprehensive overview and systematic classification of the traditional and modern topologies of SIMO converters in terms of system architecture, circuit analysis, operating principles, control methods, design considerations and practical implementation. Specifically, the book presents the mathematical models and design principles necessary for analyzing the behavior of each kind of SIMO converter, and building upon that, introduces and imparts new approaches and techniques when designing such converters, guiding engineering students and power engineers towards achieving low-cost, compact and energy efficient SIMO converters. offers the design considerations and optimization as well as describing the key applications of SIMO converters. The book fills a significant niche in the power electronics literature and provides a complete perspective on SIMO converters that hopefully can inspire appreciation and better understanding of the subject matter. It can be directly adopted in undergraduate or graduate coursework as well as postgraduate research programs.

Resonant Power Conversion Topologies for Inductive Charging of Electric Vehicle Batteries

Author : John Gerard Hayes
Publisher :
ISBN 13 :
Total Pages : 159 pages
Book Rating : 4.:/5 (795 download)

DOWNLOAD NOW!

Book Synopsis Resonant Power Conversion Topologies for Inductive Charging of Electric Vehicle Batteries by : John Gerard Hayes

Download or read book Resonant Power Conversion Topologies for Inductive Charging of Electric Vehicle Batteries written by John Gerard Hayes and published by . This book was released on 1998 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis is concerned with inductive charging of electric vehicle batteries. Rectified power form the 50/60 Hz utility feeds a dc-ac converter which delivers high-frequency ac power to the electric vehicle inductive coupling inlet. The inlet configuration has been defined by the Society of Automotive Engineers in Recommended Practice J-1773. This thesis studies converter topologies related to the series resonant converter. When coupled to the vehicle inlet, the frequency-controlled series-resonant converter results in a capacitively-filtered series-parallel LCLC (SP-LCLC) resonant converter topology with zero voltage switching and many other desirable features. A novel time-domain transformation analysis, termed Modal Analysis, is developed, using a state variable transformation, to analyze and characterize this multi-resonant fourth-orderconverter. Next, Fundamental Mode Approximation (FMA) Analysis, based on a voltage-source model of the load, and its novel extension, Rectifier-Compensated FMA (RCFMA) Analysis, are developed and applied to the SP-LCLC converter. The RCFMA Analysis is a simpler and more intuitive analysis than the Modal Analysis, and provides a relatively accurate closed-form solution for the converter behavior. Phase control of the SP-LCLC converter is investigated as a control option. FMA and RCFMA Analyses are used for detailed characterization. The analyses identify areas of operation, which are also validated experimentally, where it is advantageous to phase control the converter. A novel hybrid control scheme is proposed which integrates frequency and phase control and achieves reduced operating frequency range and improved partial-load efficiency. The phase-controlled SP-LCLC converter can also be configured with a parallel load and is an excellent option for the application. The resulting topology implements soft-switching over the entire load range and has high full-load and partial-load efficiencies. RCFMA Analysis is used to analyze and characterize the new converter topology, and good correlation is shown with experimental results. Finally, a novel single-stage power-factor-corrected ac-dc converter is introduced, which uses the current-source characteristic of the SP-LCLC topology to provide power factor correction over a wide output power range from zero to full load. This converter exhibits all the advantageous characteristics of its dc-dc counterpart, with a reduced parts count and cost. Simulation and experimental results verify the operation of the new converter.

Switch-Mode Power Converters

Author : Keng C. Wu
Publisher : Elsevier
ISBN 13 : 0080459560
Total Pages : 409 pages
Book Rating : 4.0/5 (84 download)

DOWNLOAD NOW!

Book Synopsis Switch-Mode Power Converters by : Keng C. Wu

Download or read book Switch-Mode Power Converters written by Keng C. Wu and published by Elsevier. This book was released on 2005-12-01 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: Switch-Mode Power Converters introduces an innovative, highly analytical approach to symbolic, closed-form solutions for switched-mode power converter circuits. This is a highly relevant topic to power electronics students and professionals who are involved in the design and analysis of electrical power converters. The author uses extensive equations to explain how solid-state switches convert electrical voltages from one level to another, so that electronic devices (e.g., audio speakers, CD players, DVD players, etc.) can use different voltages more effectively to perform their various functions. Most existing comparable books published as recently as 2002 do not discuss closed-loop operations, nor do they provide either DC closed-loop regulation equations or AC loop gain (stability) formulae. The author Wu, a leading engineer at Lockheed Martin, fills this gap and provides among the first descriptions of how error amplifiers are designed in conjunction with closed-loop bandwidth selection. BENEFIT TO THE READER: Readers will gain a mathematically rigorous introduction to numerous, closed-form solutions that are readily applicable to the design and development of various switch-mode power converters. Provides symbolic, closed-form solutions for DC and AC studies Provides techniques for expressing close-loop operation Gives readers the ability to perform closed-loop regulation and sensitivity studies Gives readers the ability to design error amplifiers with precision Employs the concept of the continuity of states in matrix form Gives accelerated time-domain, steady-state studies using Laplace transform Gives accelerated time-domain studies using state transition Extensive use of matrix, linear algebra, implicit functions, and Jacobian determinants Enables the determination of power stage gain that otherwise could not be obtained

Control of Power Electronic Converters and Systems: Volume 4

Author : Frede Blaabjerg
Publisher : Academic Press
ISBN 13 : 0323856233
Total Pages : 642 pages
Book Rating : 4.3/5 (238 download)

DOWNLOAD NOW!

Book Synopsis Control of Power Electronic Converters and Systems: Volume 4 by : Frede Blaabjerg

Download or read book Control of Power Electronic Converters and Systems: Volume 4 written by Frede Blaabjerg and published by Academic Press. This book was released on 2024-02-24 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt: Control of Power Electronic Converters and Systems, Volume Four covers emerging topics in the control of power electronics and converters not covered in previous volumes, including emerging power converter topologies, storage systems, battery chargers and the smart transformer. This updated edition specifically focuses on emerging power converter topologies and discusses very recent advances and topics with applications in power electronics and formidable probable dynamics. Chapters include modeling of power converters and their control, with supportive simulations and additional experimental results.Anyone looking for fundamental knowledge regarding new trends in power electronics by application, and also ready to use models and methodologies in their design, control and testing will find this the next invaluable resource in this highly regarded series. Combines essential control design methods and trends with different applications of power convertor topologies Includes global perspectives, case studies and real examples from different applications and their control Features ready-to-use models and methodologies in power electronic application, their design, control and testing

Power Supply Cookbook

Author : Marty Brown
Publisher : Elsevier
ISBN 13 : 0080480128
Total Pages : 278 pages
Book Rating : 4.0/5 (84 download)

DOWNLOAD NOW!

Book Synopsis Power Supply Cookbook by : Marty Brown

Download or read book Power Supply Cookbook written by Marty Brown and published by Elsevier. This book was released on 2001-06-13 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power Supply Cookbook, Second Edition provides an easy-to-follow, step-by-step design framework for a wide variety of power supplies. With this book, anyone with a basic knowledge of electronics can create a very complicated power supply design in less than one day. With the common industry design approaches presented in each section, this unique book allows the reader to design linear, switching, and quasi-resonant switching power supplies in an organized fashion. Formerly complicated design topics such as magnetics, feedback loop compensation design, and EMI/RFI control are all described in simple language and design steps. This book also details easy-to-modify design examples that provide the reader with a design template useful for creating a variety of power supplies. This newly revised edition is a practical, "start-to-finish" design reference. It is organized to allow both seasoned and inexperienced engineers to quickly find and apply the information they need. Features of the new edition include updated information on the design of the output stages, selecting the controller IC, and other functions associated with power supplies, such as: switching power supply control, synchronization of the power supply to an external source, input low voltage inhibitors, loss of power signals, output voltage shut-down, major current loops, and paralleling filter capacitors. It also offers coverage of waveshaping techniques, major loss reduction techniques, snubbers, and quasi-resonant converters. Guides engineers through a step-by-step design framework for a wide variety of power supplies, many of which can be designed in less than one day Provides easy-to-understand information about often complicated topics, making power supply design a much more accessible and enjoyable process

Practical Switching Power Supply Design

Author : Marty Brown
Publisher : Academic Press
ISBN 13 : 9780121370305
Total Pages : 260 pages
Book Rating : 4.3/5 (73 download)

DOWNLOAD NOW!

Book Synopsis Practical Switching Power Supply Design by : Marty Brown

Download or read book Practical Switching Power Supply Design written by Marty Brown and published by Academic Press. This book was released on 1990-03-28 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Why use switching power supplies? -- How a switching power supply works -- A walk through a representative switching power supply -- Switching power supply topologies -- Semiconductors used in a switching power supply -- The magnetic components within a switching power supply -- Cross-regulation of the outputs -- Protection -- Miscellaneous topics -- Closing the loop-feedback and stability -- Resonant converters -- an introduction -- Switching power supply design examples.

Analysis and Design of Power Converter Topologies for Application in Future More Electric Aircraft

Author : Amit Kumar Singh
Publisher : Springer
ISBN 13 : 9811082138
Total Pages : 216 pages
Book Rating : 4.8/5 (11 download)

DOWNLOAD NOW!

Book Synopsis Analysis and Design of Power Converter Topologies for Application in Future More Electric Aircraft by : Amit Kumar Singh

Download or read book Analysis and Design of Power Converter Topologies for Application in Future More Electric Aircraft written by Amit Kumar Singh and published by Springer. This book was released on 2018-04-20 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis proposes new power converter topologies suitable for aircraft systems. It also proposes both AC-DC and DC-DC types of converters for different electrical loads to improve the performance these systems. To increase fuel efficiency and reduce environmental impacts, less efficient non-electrical aircraft systems are being replaced by electrical systems. However, more electrical systems requires more electrical power to be generated in the aircraft. The increased consumption of electrical power in both civil and military aircrafts has necessitated the use of more efficient electrical power conversion technologies. This book presents acomprehensive mathematical analysis and the design and digital simulation of the power converters. Subsequently it discusses the construction of the hardware prototypes of each converter and the experimental tests carried out to verify the benefits of the proposed solutions in comparison to the existing solutions.

Analysis and Design Optimization of Resonant DC-DC Converters

Author : Xiang Fang
Publisher :
ISBN 13 :
Total Pages : 190 pages
Book Rating : 4.:/5 (856 download)

DOWNLOAD NOW!

Book Synopsis Analysis and Design Optimization of Resonant DC-DC Converters by : Xiang Fang

Download or read book Analysis and Design Optimization of Resonant DC-DC Converters written by Xiang Fang and published by . This book was released on 2012 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development in power conversion technology is in constant demand of high power efficiency and high power density. The DC-DC power conversion is an indispensable stage for numerous power supplies and energy related applications. Particularly, in PV micro-inverters and front-end converter of power supplies, great challenges are imposed on the power performances of the DC-DC converter stage, which not only require high efficiency and density but also the capability to regulate a wide variation range of input voltage and load conditions. The resonant DC-DC converters are good candidates to meet these challenges with the advantages of achieving soft switching and low EMI. Among various resonant converter topologies, the LLC converter is very attractive for its wide gain range and providing ZVS for switches from full load to zero load condition. The operation of the LLC converter is complicated due to its multiple resonant stage mechanism. A literature review of different analysis methods are presented, and it shows that the study on the LLC is still incomplete. Therefore, an operation mode analysis method is proposed, which divides the operation into six major modes based on the occurrence of resonant stages. The resonant currents, voltages and the DC gain characteristics for each mode is investigated. To obtain a thorough view of the converter behavior, the boundaries of every mode are studied, and mode distribution regarding the gain, load and frequency is presented and discussed. As this operation mode model is a precise model, an experimental prototype is designed and built to demonstrate its accuracy in operation waveforms and gain prediction. Since most of the LLC modes have no closed-form solutions, simplification is necessary in order to utilize this mode model in practical design. Some prior approximation methods for converter's gain characteristics are discussed. Instead of getting an entire gain-vs.-frequency curve, we focus on peak gains, which is an important design parameters indicating the LLC's operating limit of input voltage and switching frequency. A numerical peak gain approximation method is developed, which provide a direct way to calculate the peak gain and its corresponding load and frequency condition. The approximated results are compared with experiments and simulations, and are proved to be accurate. In addition, as PO mode is the most favorable operation mode of the LLC, its operation region is investigated and an approximation approach is developed to determine its boundary. The design optimization of the LLC has always been a difficult problem as there are many parameters affecting the design and it lacks clear design guidance in selecting the optimal resonant tank parameters. Based on the operation mode model, three optimization methods are proposed according to the design scenarios. These methods focus on minimize the conduction loss of resonant tank while maintaining the required voltage gain level, and the approximations of peak gains and PO mode boundary can be applied here to facilitate the design. A design example is presented using one of the proposed optimization methods. As a comparison, the L-C component values are reselected and tested for the same design specifications. The experiments show that the optimal design has better efficiency performance. Finally, a generalized approach for resonant converter analysis is developed. It can be implemented by computer programs or numerical analysis tools to derive the operation waveforms and DC characteristics of resonant converters.

Single-Inductor Multiple-Output Converters

Author : Albert Ting Leung Lee
Publisher : CRC Press
ISBN 13 : 1000487741
Total Pages : 228 pages
Book Rating : 4.0/5 (4 download)

DOWNLOAD NOW!

Book Synopsis Single-Inductor Multiple-Output Converters by : Albert Ting Leung Lee

Download or read book Single-Inductor Multiple-Output Converters written by Albert Ting Leung Lee and published by CRC Press. This book was released on 2021-12-16 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides a comprehensive overview of Single-Inductor Multiple-Output Converters from both theoretical and practical perspectives. Based on the authors’ in-depth research, the volume covers not only conventional SIMO DC-DC converters but also the new generations of SIMO such as SIMO AC-DC converters, SIMO DC-AC converters (or SIMO inverters), and the latest SIMO hybrid converters. This book offers a holistic and systematic presentation of all types of SIMO converters, encompassing the derivation of the circuit topologies, the definition of key concepts, detailed discussion of theoretical underpinnings, design methodology and control schemes, as well as design considerations and techniques that enable practical implementation. Specific examples of real-world applications of SIMO converters are also provided. The volume offers a comprehensive overview and systematic classification of the traditional and modern topologies of SIMO converters in terms of system architecture, circuit analysis, operating principles, control methods, design considerations and practical implementation. Specifically, the book presents the mathematical models and design principles necessary for analyzing the behavior of each kind of SIMO converter, and building upon that, introduces and imparts new approaches and techniques when designing such converters, guiding engineering students and power engineers towards achieving low-cost, compact and energy efficient SIMO converters. offers the design considerations and optimization as well as describing the key applications of SIMO converters. The book fills a significant niche in the power electronics literature and provides a complete perspective on SIMO converters that hopefully can inspire appreciation and better understanding of the subject matter. It can be directly adopted in undergraduate or graduate coursework as well as postgraduate research programs.

Power Electronics Handbook

Author : Muhammad H. Rashid
Publisher : Butterworth-Heinemann
ISBN 13 : 0128114088
Total Pages : 1522 pages
Book Rating : 4.1/5 (281 download)

DOWNLOAD NOW!

Book Synopsis Power Electronics Handbook by : Muhammad H. Rashid

Download or read book Power Electronics Handbook written by Muhammad H. Rashid and published by Butterworth-Heinemann. This book was released on 2017-09-09 with total page 1522 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power Electronics Handbook, Fourth Edition, brings together over 100 years of combined experience in the specialist areas of power engineering to offer a fully revised and updated expert guide to total power solutions. Designed to provide the best technical and most commercially viable solutions available, this handbook undertakes any or all aspects of a project requiring specialist design, installation, commissioning and maintenance services. Comprising a complete revision throughout and enhanced chapters on semiconductor diodes and transistors and thyristors, this volume includes renewable resource content useful for the new generation of engineering professionals. This market leading reference has new chapters covering electric traction theory and motors and wide band gap (WBG) materials and devices. With this book in hand, engineers will be able to execute design, analysis and evaluation of assigned projects using sound engineering principles and adhering to the business policies and product/program requirements. Includes a list of leading international academic and professional contributors Offers practical concepts and developments for laboratory test plans Includes new technical chapters on electric vehicle charging and traction theory and motors Includes renewable resource content useful for the new generation of engineering professionals

Topologies and Control of Single-stage AC-DC Wireless-power-transfer Resonant Converters with Power-factor-correction

Author : Junwei Liu
Publisher :
ISBN 13 :
Total Pages : 186 pages
Book Rating : 4.:/5 (17 download)

DOWNLOAD NOW!

Book Synopsis Topologies and Control of Single-stage AC-DC Wireless-power-transfer Resonant Converters with Power-factor-correction by : Junwei Liu

Download or read book Topologies and Control of Single-stage AC-DC Wireless-power-transfer Resonant Converters with Power-factor-correction written by Junwei Liu and published by . This book was released on 2018 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Simplify Method for Optimal Control Resonant Power Converter

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (652 download)

DOWNLOAD NOW!

Book Synopsis Simplify Method for Optimal Control Resonant Power Converter by :

Download or read book Simplify Method for Optimal Control Resonant Power Converter written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Nowadays the developments of power supplies in military, industrial or commercial applications are growing rapidly, not only to achieve the highest efficiency but also to focus on the size and weight minimization which are playing a major role in this area. Therefore, the research trends in dc-dc, ac-dc, dc-ac, ac-ac topologies are still continuously developing into the direction of new topologies, new control concepts, new materials and devices to achieve highest efficiency and smallest size. The cost per unit is also one of the most important points of power supplies. Also, with new control methods and new ways of manufacturing, for example, the cost per unit might be reduced. Also, a simplified control concept might help to avoid discrete circuits, especially, at low power levels. The last mentioned statement is demonstrated, for instance, by the concept of the Link-Switch of the company Power Integration where an extremely small number of components are necessary. With the target of minimization, this research work explores the possibility to replace conventional electromagnetic transformers considered as the most bulky devices in power supplies by piezoelectric transformers (PT) for innovative off-line power supplies. Several control methods for a load resonant converter focusing on class-E topology utilizing PT, were developed in order to investigate and to select an appropriate control method capable of improving the efficiency and reducing the size of the converter. Efficiency should be understood in this way as maximum reliability at minimum power losses. Different controllers were evaluated for optimizing the effect of disturbances of line and load variations. The ZVS condition for a wide input voltage range and a wide output load range can be achieved by a method called duty-cycle tracking. Further, with an improved design of the PT containing an auxiliary tap, the ZVS condition can be obtained by a method called turn-on synchronization. The controlled ou.

Power Electronics

Author : Ned Mohan
Publisher :
ISBN 13 :
Total Pages : 696 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!

Book Synopsis Power Electronics by : Ned Mohan

Download or read book Power Electronics written by Ned Mohan and published by . This book was released on 1989-06-14 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aimed at undergraduate students of electrical engineering, this textbook focuses on the emerging power electronic converters made feasible by the new generation of power semiconductor devices. It discusses a broad spectrum of power applications and examines converter design.