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Variable Power, Short Microwave Pulses Generation using a CW MagnetronSURDUCAN, V.   , SURDUCAN, E. , CIUPA, R. |
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Author keywords
Continuous Wave Magnetron, Pulse Width Modulation, Zero Voltage Switching, Microcontroller, Microwave Pulse Modulation
References keywords
surducan(6), patent(4), microwave(4), medical(4), magnetron(4), bessyo(4)
Blue keywords are present in both the references section and the paper title.
About this article
Date of Publication: 2011-05-30
Volume 11, Issue 2, Year 2011, On page(s): 49 - 54
ISSN: 1582-7445, e-ISSN: 1844-7600
Digital Object Identifier: 10.4316/AECE.2011.02008
Web of Science Accession Number: 000293840500008
SCOPUS ID: 79958794001
Abstract
Fine control of microwave power radiation in medical and scientific applications is a challenging task. Since a commercial Continuous Wave (CW) magnetron is the most inexpensive microwave device available today on the market, it becomes the best candidate for a microwave power generator used in medical diathermy and hyperthermia treatments or high efficiency chemical reactions using microwave reactors as well. This article presents a new method for driving a CW magnetron with short pulses, using a modified commercial Zero Voltage Switching (ZVS) inverter, software driven by a custom embedded system. The microwave power generator designed with this method can be programmed for output microwave pulses down to 1% of the magnetron's power and allows microwave low frequency pulse modulation in the range of human brain electrical activity, intended for medical applications. Microwave output power continuous control is also possible with the magnetron running in the oscillating area, using a dual frequency Pulse Width Modulation (PWM), where the low frequency PWM pulse is modulating a higher resonant frequency required by the ZVS inverter's transformer. The method presented allows a continuous control of both power and energy (duty-cycle) at the inverter's output. |
| References | | | Cited By «-- Click to see who has cited this paper |
| [1] V. Surducan, E. Surducan, R. Ciupa, "Medical and scientific apparatus with microwave thermal and non-thermal effect", Nonconventional Technology Review, Nr. 1, pp. 42-49, 2010.
[2] P. Vecchia, R. Matthes, G. Zieglerberger, J. Lin, R. Saunders, A. Zwerdlow, "Exposure to high frequency electromagnetic fields, biological effects and health consequences (100KHz-300GHz)" pp.4, ICNIRP 16/2009 [3] R. Narita, H. Kako, H. Imamura, Magnetron Drive Apparatus, patent US4858095, 1989. [4] E. Surducan, V. Surducan, "Procedeu si instalatie pentru procesarea dinamica a substantei in camp de microunde de putere" ,patent RO 00122063, 2008. [5] A. W. Hull, "The magnetron" Journal of the American Institute of Electrical Engineers, vol. 40, no. 9, pages 715-723, September 1921. [6] H. E. Hollman, "Magnetron" US patent 2123728, in Germany: November 29 1935, in USA: July 12, 1938 [7] Ghe. Rulea, "Tehnica frecvenþelor foarte inalte", Editura Tehnica Bucuresti, 1966, pp. 323-334. [8] D. Bessyo et all "High frequency heating apparatus" US patent 6362463 B1, 2002 [9] E. Miyata, S. Hishikawa, K. Matsumoto, M. Nakaoka, D. Bessyo, K. Yasui, I. Hirota, H. Omori, "Quasi-resonant ZVS PWM Inverter-fed DC-DC Converter for Microwave Oven and its Input Harmonic Current Evaluations", Industrial Electronics Society, 1999. IECON '99 Proceedings. The 25th Annual Conference of the IEEE [CrossRef] [10] D. Bessyo, K. Yasui, M. Nakaoka, "A method of Decreasing the Harmonic Distorsion for Inverter Microwave Oven", Electronics and Communications in Japan, part1, vol.85, no.4, pp.1528-1537, 2002 [CrossRef] [Web of Science Record] [SCOPUS Times Cited 3] [11] M. Ishitobi, S. Moisseev, L. Gamage, M. Nakaoka, D. Bessyo, H. Omori, "Pulse Width and Pulse Frequency Modulation Pattern Controlled ZVS Inverter Type AC-DC Power Converter with Lowered Utility AC Grid Side Harmonic Current Components for Magnetron Drive", Power Electronic Specialists Conference, Cairns, Qld., Australia, pp 2062-2066, IEEE 2002 [CrossRef] [12] V. Surducan, E. Surducan, R. Ciupa, M. Roman, "Embedded system controlling microwave generators in hyperthermia and diathermy medical devices", IEEE International Conference on Automation, Quality and Testing, Robotics 2010, pp.366-371, ISBN978-1-4244-6722-8, Cluj-Napoca, Romania, [CrossRef] [SCOPUS Times Cited 12] [13] R. Black, "Zero error-1second timing" [14] IEC60601-1-4, Medical electrical equipment, Part 1-4: General requirements for safety. Programmable medical electrical systems. Web of Science® Citations for all references: 0 SCOPUS® Citations for all references: 15 TCR Web of Science® Average Citations per reference: 0 SCOPUS® Average Citations per reference: 1 ACR TCR = Total Citations for References / ACR = Average Citations per Reference We introduced in 2010 - for the first time in scientific publishing, the term "References Weight", as a quantitative indication of the quality ... Read more Citations for references updated on 2024-11-16 11:18 in 30 seconds. Note1: Web of Science® is a registered trademark of Clarivate Analytics. Note2: SCOPUS® is a registered trademark of Elsevier B.V. Disclaimer: All queries to the respective databases were made by using the DOI record of every reference (where available). Due to technical problems beyond our control, the information is not always accurate. Please use the CrossRef link to visit the respective publisher site. |
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Faculty of Electrical Engineering and Computer Science
Stefan cel Mare University of Suceava, Romania
All rights reserved: Advances in Electrical and Computer Engineering is a registered trademark of the Stefan cel Mare University of Suceava. No part of this publication may be reproduced, stored in a retrieval system, photocopied, recorded or archived, without the written permission from the Editor. When authors submit their papers for publication, they agree that the copyright for their article be transferred to the Faculty of Electrical Engineering and Computer Science, Stefan cel Mare University of Suceava, Romania, if and only if the articles are accepted for publication. The copyright covers the exclusive rights to reproduce and distribute the article, including reprints and translations.
Permission for other use: The copyright owner's consent does not extend to copying for general distribution, for promotion, for creating new works, or for resale. Specific written permission must be obtained from the Editor for such copying. Direct linking to files hosted on this website is strictly prohibited.
Disclaimer: Whilst every effort is made by the publishers and editorial board to see that no inaccurate or misleading data, opinions or statements appear in this journal, they wish to make it clear that all information and opinions formulated in the articles, as well as linguistic accuracy, are the sole responsibility of the author.
