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Analysis and implementation of switch mode power supplies in MHz frequency region
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media.
2012 (English)Licentiate thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Sundsvall: Mid Sweden University , 2012. , 56 p.
Series
Mid Sweden University licentiate thesis, ISSN 1652-8948 ; 80
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-16691Local ID: STCISBN: 978-91-87103-13-1 (print)OAI: oai:DiVA.org:miun-16691DiVA: diva2:543427
Available from: 2012-08-08 Created: 2012-08-08 Last updated: 2016-10-20Bibliographically approved
List of papers
1. High Frequency Half-Bridge Converter using Multilayered Coreless PrintedCircuit Board Step-Down Power Transformer
Open this publication in new window or tab >>High Frequency Half-Bridge Converter using Multilayered Coreless PrintedCircuit Board Step-Down Power Transformer
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2011 (English)In: 8th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2011-ECCE Asia, IEEE conference proceedings, 2011, 1177-1181 p.Conference paper, Published paper (Refereed)
Abstract [en]

This paper introduces high frequencyhalf bridgeDC-DC converter, using multilayered coreless Printed Circuit Board (PCB) step down power transformer. The converter is simulated and then implemented on a PCB. Complementary Pulse Width Modulated (PWM) signals are generated to turn on high and low side Metal Oxide Semiconductor Field Effect Transistors (MOSFETs) alternately by a micro-controller. The isolated gate drive signals are provided to the high side MOSFET by using high frequency coreless PCB isolation transformer. We tested the converter for switching frequency range of 2 to 3 MHz, and for maximum input voltage up-to 170 V. The maximum output power achieved is 40 W and the maximum energy efficiency is approximately 82 %. © 2011 IEEE.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2011
Keyword
Printed Circuit Board; Pulse Width Modulation; Switch Mode Power Supplies
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:miun:diva-14197 (URN)10.1109/ICPE.2011.5944712 (DOI)2-s2.0-80052080114 (Scopus ID)STC (Local ID)978-1-61284-956-0 (ISBN)978-1-61284-958-4 (ISBN)STC (Archive number)STC (OAI)
Conference
8th International Conference on Power Electronics - ECCE Asia May 30-June 3, 2011, The Shilla Jeju, Korea
Available from: 2011-07-19 Created: 2011-07-19 Last updated: 2016-10-19Bibliographically approved
2. Analysis of feedback in converter using coreless printed circuit board transformer
Open this publication in new window or tab >>Analysis of feedback in converter using coreless printed circuit board transformer
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2013 (English)In: Electrical Machines and Power Electronics and 2011 Electromotion Joint Conference (ACEMP), 2011 International Aegean Conference on, IEEE conference proceedings, 2013, 601-604 p.Conference paper, Published paper (Refereed)
Abstract [en]

Power supply is an inevitable component for all electronic instruments as a constant DC source. Almost all power supplies use feedback loop to achieve constant DC output voltage. In a feedback loop, the galvanic isolation is required between input and output. It can be achieved either by implementation of opto-coupler feedback on the secondary side or magnetic feedback. In this paper both opto-coupler and auxiliary feed-back techniques are implemented and analyzed in a high frequency half bridge converter using coreless Printed Circuit Board (PCB) power transformer. The implementation of opto-coupler feedback is temperature sensitive and has relatively high cost. The auxiliary winding of transformer can also be used to provide feedback signals as alternate to opto-coupler. Auxiliary feedback implementation is cheaper, temperature stable and insensitive to temperature variations. In this paper, the feasibility of feedback using auxiliary winding of coreless PCB power transformer is investigated. It is observed that this technique can be used as an alternative to opto-coupler feedback.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2013
Keyword
Analog to digital conversion; Electro-magnetic interference; Switch mode power supplies; Printed circuit board; Pulse width modulation
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:miun:diva-14523 (URN)10.1109/ACEMP.2011.6490667 (DOI)2-s2.0-84876496931 (Scopus ID)STC (Local ID)978-1-4673-5002-0 (ISBN)STC (Archive number)STC (OAI)
Conference
International Aegean Conference on Electric Machines and Power Electronics & Electromotion Joint Conference 08-10 September 2011 İstanbul, Turkey
Available from: 2011-09-21 Created: 2011-09-22 Last updated: 2017-11-02Bibliographically approved
3. High Frequency Full Bridge Converter using Multilayer Coreless Printed Circuit Board Step-up Power Transformer
Open this publication in new window or tab >>High Frequency Full Bridge Converter using Multilayer Coreless Printed Circuit Board Step-up Power Transformer
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2011 (English)In: 2011 20th European Conference on Circuit Theory and Design, ECCTD 2011, IEEE conference proceedings, 2011, 805-808 p.Conference paper, Published paper (Refereed)
Abstract [en]

In designing switch mode power supply (SMPS), thedesirable feature is to have an efficient and compact design. Themain idea is to increase the switching frequency and reduce thebulky magnetic parts of the converter. This leads to a compactsize, less weight, reduced cost and increased power density of theconverter. This paper presents a high frequency full bridge DC toDC converter, using a multilayer coreless printed circuit board(PCB) step-up power transformer. The converter was simulatedand also implemented on the PCB. The pulse width modulated(PWM) signals were generated, using a microcontroller, to switchthe Metal oxide semiconductor field effect transistor (MOSFET).The design of the converter is tested up to the power levels of 5Watts with the switching frequency in 2 to 3MHz range. Theenergy efficiency of the converter is 74.86% at 2.4 MHz.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2011
Keyword
Full bridge converter; MHz frequency region; Multi layer PCB transformer; Power MOSFET; Switch mode power supply
National Category
Engineering and Technology
Identifiers
urn:nbn:se:miun:diva-14583 (URN)10.1109/ECCTD.2011.6043837 (DOI)2-s2.0-80155123534 (Scopus ID)STC (Local ID)978-145770618-9 (ISBN)STC (Archive number)STC (OAI)
Conference
2011 20th European Conference on Circuit Theory and Design, ECCTD 2011;Linkoping;29 August 2011through31 August 2011;Category numberCFP11ECC-ART;Code87118
Available from: 2011-10-06 Created: 2011-10-06 Last updated: 2016-10-19Bibliographically approved

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