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http://dx.doi.org/10.5207/JIEIE.2012.26.6.029

Development of the High Voltage Converter for the Pulsed Light Sterilization  

Lee, Young-Woo (숭실대학교 전기공학부)
Kim, Hyung-Won (숭실대학교 전기공학부)
Choi, Woo-Jin (숭실대학교 전기공학부)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.26, no.6, 2012 , pp. 29-37 More about this Journal
Abstract
As the demand for the fresh non-thermal food is increased, it is required to develop the fast and perfect sterilization method. The conventional sterilization method using ultraviolet lamp has some disadvantages such as imperfect sterilization and longer process time. In this research, IPL(Intense Pulsed Light) sterilization system is introduced to overcome the drawbacks of the conventional system, and suitable power supply architecture for the system is discussed. Since the IPL sterilization system uses Zenon lamps which requires the 600~2,100[V] for the lightning and 16~30[kV] for the trigger, the converter for the system should be able to generate the high voltage and to discharge the large amount of energy instantaneously. In this research a new power system architecture which has a modified forward converter topology with two switches for generating high voltage and a capacitor bank to control the energy for the lightning by switching is introduced.
Keywords
Intense Pulsed Light Sterilization System; Zenon Lamp; Modified Forward Converter with Two Switches. Capacitor Bank; Trigger;
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