2 edition of Designing magnetic components for high frequency DC-DC converters found in the catalog.
Designing magnetic components for high frequency DC-DC converters
Colonel William T. McLyman
1993 by KG Magnetics in San Marino, CA (2135 Huntington Dr., Suite 201D, San Marino 91108) .
Written in English
Includes bibliographical references.
|Statement||Colonel Wm. T. McLyman.|
|LC Classifications||TK7872.M25 M35 1993|
|The Physical Object|
|Pagination||xxviii, 433 p. :|
|Number of Pages||433|
|LC Control Number||93077101|
This thesis is focused on the design and development of an integrated magnetic (IM) structure for use in high-power high-current power converters employed in renewable energy applications. These applications require low-cost, high efficiency and high-power density magnetic components and the use of IM structures can help achieve this goal. Author of Transformer and inductor design handbook, Magnetic core selection for transformers and inductors, Transformer and inductor design software for the Macintosh, Designing magnetic components for high frequency DC-DC converters, Transformer and inductor design software for the IBM PC, Transformer and inductor design handbook, High reliability magnetic devicesWritten works: Transformer and inductor design handbook, High Reliability Magnetic Devices. frequency ratio makes easier the design of the power stage. C. Switching frequency and magnetic components The selected switching frequency for this converter is around kHz. For frequencies lower than kHz the size of the output inductor would increase too much. The selected core for the choke is a planar E core (E18/4/10) inFile Size: KB. The MPQ switching at kHz with a µH inductor and two output capacitors passed a low-frequency RE monopole test without additional shielding or SSFM (Figure 8).. Figure 8 Low-frequency monopole test results. With the view that layout, with its parasitic elements, is part of the circuit, PCB design can be optimized for low EMI in DC/DC converters.
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Designing Magnetic Components for High Frequency Dc-Dc Converters by William T. McLyman (Author) out of 5 stars 4 ratings.
ISBN ISBN Why is ISBN important. ISBN. This bar-code number lets you verify that you're getting exactly the right version or edition of a book. Cited by: The book presents the growing area of magnetic component research in a textbook form, covering the foundations for analysing and designing magnetic devices specifically at high-frequencies.
Integrated inductors are described, and the Self-capacitance of inductors and transformers is examined. Designing magnetic components for high frequency DC-DC converters Designing magnetic components for high frequency DC-DC converters by Colonel William T. McLyman Published by KG Magnetics in San Marino, CA ( Huntington Dr., Pages: Designing Magnetic Components for High Frequency DC-DC Converters.
Abstract: The conversion process in power electronics requires the use of tranformers and inductors, components which frequenly are the heaviest and bulkiest item in the conversion by: Designing Magnetic Components for High Frequency Dc-Dc Converters 作者: William T.
McLyman 出版社: K G Magnetics Inc 出版年: 定价: USD 装帧: Hardcover ISBN: The SiA controller pushes the limits for high-frequency power conversion by further reducing delay times and adding additional features. As a result, dc-to-dc converters can be designed for frequencies up to 1 MHz with simple PWM topologies instead of the complex resonant Size: 1MB.
This thesis presents a resonant boost topology suitable for very high frequency (VHF, MHz) dc-dc power conversion. The proposed design is a ﬁxed frequency, ﬁxed duty ratio resonant converter featuring low device stress, high eﬃciency over a wide load range, and excellent transient performance.
One of the potential applications of the High frequency high power transformer (HFHPT) is high power isolated DC-DC converters for wind energy DC collection and transmission grids.
This could lead to a great weight and size reduction, which is of a particular value for. the EMI filter based on the simulation of the filter in frequency domain. Thus, the high frequency models of the filter components are proposed. The obtained models have been tested and give good results on a large frequency range, from 9 kHz to 30 MHz.
INTRODUCTION The utilization of the static converter in the electric tractionFile Size: 1MB. The stored energy of an inductor is: W =1. stored as magnetic field energy, within the ferrite core and within the air gap (see Fig).
The higher the required stored the energy the larger the required core. The size of a inductor is approximately proportional to the stored Size: 57KB. decreasing inductor value. In return, switching frequency of converter must increase.
For now, integrated circuit technologies limit this frequency to 3 MHz to maintain a high efficiency solution, another key parameter to save battery life in portable design. NCPB is one of the highest frequency DC−DC step-down regulators at 3 MHz.
Magnetic Component Design Problem • Challenge - conversion of component operating specs in converter circuit into component design parameters. • Goal - simple, easy-to-use procedure that produces component design specs that result in an acceptable design having a minimum size, weight, and cost.
• Inductor electrical (ter circuit)File Size: KB. Optimal Design of Planar Magnetic Components for a Two-Stage GaN-Based DC–DC Converter buck converter (> kHz), and the second unregulated stage is an LLC (2-MHz) dc transformer. In order to achieve high frequency and high efficiency, the critical-mode operation is applied for the buck converter, and the negative coupled inductors are Cited by: 8.
With the increasing demand for small and cost efficient DC/DC converters, the power converters are expected to operate with high efficiency. Magnetics components design is one of the biggest challenges in achieving the higher power density and higher efficiency due to the significant portion of magnetics components volume in the whole power system.
Micro-Fabrication of Planar Inductors fo r High Frequency DC-DC Power Converters (a) (b) (c) Fig. Qualitative magnetic field distribution in: (a) coreless inductor (without magnetic material); (b) single layer (bottom side) and (c) double layer of ferrite magnetic material material.
One of the design challenges of the high-density power converter design is to have high-density magnetic components which are usually the most bulky parts in a converter. Increasing the switching frequency to shrink the passive component size is the biggest contribution towards increasing power density.
However, two factors, losses and. DC/DC converter circuits have their unique switching frequencies. In general, they affect the circuit properties as shown in Table 2 below: Figure 7 and Figure 8 show the relationships between switching frequencies and efficiencies of the step-down models XC/XC (MHz) and XC/XC (3MHz), respectively, as examples.
Dr. Wölfe is currently a Managing Director of Convertec Ltd., a company that develops high-reliability power converters for industrial applications. He has been involved with designing magnetic components for power electronics for over 30 years and is also an Adjunct Professor of Electrical Engineering at the National University of Ireland.
standard boost converter, the ZETA converter is config-ured from a buck controller that drives a high-side L1aPMOS FET. The ZETA converter is another option for regulating an unregulated input-power supply, like a low-cost wall wart.
To minimize board space, a coupled inductor can be used. This article explains how to design a ZETA converterFile Size: KB. Find helpful customer reviews and review ratings for Designing Magnetic Components for High Frequency Dc-Dc Converters at Read honest /5. On the other hand, ferrites, as widely used magnetic core materials in power electronics.
systems, usually are good electrical conductors. Consequently ac magnetic fields can cause. electrical eddy currents to flow within the core material itself, as shown in Figure Cited by: 2. Magnetic Components in Power Converters Requirements of Magnetic Components • Energy(J) • Apparent Power (VA) • Frequency • Saturation limits • Electrical isolation • Grounding • Size, Volume & mass • Efficiency • TemperatureRise & Ambienttemperature • OperationCycle • Lifetime estimationFile Size: 1MB.
ing high-frequency DC/DC converters that they claim reduce board space. A DC/DC converter operating at 1 or 2 MHz seems like a great idea, but the switching frequency impacts the power-supply sys-tem in more ways than just its size and efficiency.
This arti-cle presents several design examples that demonstrate the benefits and challenges of. The design and development of compact, high-power, and high-temperature inductors for a kW, DC-DC bidirectional converter is presented.
The converter requires four 25 micronH inductors, each. Abstract. In the early days of power electronics, the design engineer had few design aids in magnetic component choice.
As a result, the choice was made by using whatever component happened to be on the shelf and after numerous hit-and miss tries, he finally found the most suitable : Alex Goldman.
Designing magnetic components for high frequency DC-DC converters. San Marino, CA ( Huntington Dr., Suite D, San Marino ): KG Magnetics, © (OCoLC) Magnetics Design Tool for Power Applications.
DESIGNING MAGNETIC COMPONENTS FOR HIGH FREQUENCY DC-DC CONVERTERS. When designing inductive components, calculating core losses is a difficult.
Critical points in designing DC/DC converter circuits. With SEPIC and Zeta, a capacitor is inserted between V IN and V OUT of the step-up circuit and the step-down circuit of the basic type, and a single coil is added. They can be configured as step-up or step-down DC/DC converters by using a step-up DC/DC controller IC and a step-down DC/DC controller IC, respectively.
In this thesis, an isolated kW fullbridge DC/DC converter has been designed and analyzed regarding its efficiency and weight. By increasing the switching frequency, the magnetic components in the converter can be made smaller, in this thesis a switching frequency of 20 kHz has been compared with a switching frequency of kHz.
Other Books and Software by the Author BQQks. Mo~netic Core Selection for Trnnsfortners mui lnchctors. Marcel Dekker, Madison Ave., New York, NY Transformer and huluctor Design. As one of the key elements, the magnetic components have the similar benefits and challenges along with converters, and they also have specific own problems.
Generally, the reliability of the high frequency (HF) transformers for low power and high power density is a critical issue due to the non-sinusoidal frequency electromagnetism and Occupation: Phd Student.
Design of DC-DC Converters More External Components Basic DC-DC Converter Topologies • 2nd and 3rd pole attenuates high frequency noise Example Design Steps: 1. Set R 1C 2=uS for desired BW of ~kHz 2. Set 1st zero to be 1/5 of File Size: KB.
tions another DC-DC converter must be proposed . In order to propose an alternative design option, capaci-tors, inductors or switching devices could be taken into ac-count for designing a DC-DC converter.
A proposal includ-ing a switch is shown in Fig. 3a, where ideally VS=VIN when the switch is turned on; elsewhere VS=0, so that at any. Design and implementation of high frequency 3D DC-DC converter Florian Neveu To cite this version: Florian Neveu. Design and implementation of high frequency 3D DC-DC converter.
Electronics. INSA de Lyon, English. NNT: ISAL. telCited by: 1. respectively. A dc-dc converter then reduces the voltage to the regulated 5 V or V required by the processor ICs. High efficiency is invariably required, since cooling of inefficient power converters is difficult and expensive.
The ideal dc-dc converter exhibits % efficiency; in practice, efficiencies of 70% to 95% are typically obtained. The DC-DC Boost Converter – Power Supply Design Tutorial Section Ap Jurgen Hubner The boost is the second most common non-isolated typology, in terms of units sold and functioning, and a lot of that is thanks to LED drivers, especially mobile devices.
First, the basic principles for analysis and design of power converters are presented in Sec. Topology and operating principles of the four types of power electronics converters are described with one section devoted to each.
A very simple description of power electronic converter control is pre-sented using the example of dc-dc Size: 1MB. for Your DC-DC Converter.
Inductor Performance in High Frequency DC-DC Converters Determining Inductor Power Losses. Selecting Coupled Inductors for SEPIC Applications Selecting Inductors to Drive LEDs: Power inductor finder A parametric search engine.
Inductor selection chart A visual guide to size/performance. SPICE models. Design and Analysis of Multiphase DC-DC Converters with Coupled Inductors.
(May ) Meng Shi,Shanghai Jiao Tong University, China Chair of Advisory Committee: Dr. Prasad Enjeti In this thesis, coupled inductors have been applied to multiphase DC-DC Size: KB. Designing with a linear regulator is simple and cheap, requiring few external components. A linear design is considerably quieter than a switcher since there is no high−frequency switching noise.
Switching power supplies operate by rapidly switching the. High Current Inductors for DC-DC Converters State-of-the-art power supply design of DC-DC converters requires maximum thermal efficiency, low switching losses and platform scalability.
Overall systems efficiency can be improved by the advancements in strategic power components.transfer, high-frequency effects in the transformer core and windings, and a flux density optimization to maximize transformer’s efficiency.
The design procedure has been implemented in MATLAB® as an interactive tool for designing high-frequency by: 2.Review and comparison of high eﬃciency high power boost DC/DC converters for photovoltaic applications in pairs S1 to S2 and S3 to S4.
The drive signals are π radi-ans phase shifted. Switch-transistor duty cycle is above to ensure switch overlap time, and thus a continuous current path for the inductor L1 current. Because of a very high.