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A study on a dielectric heating system for amplifying the resonant gain using the capacitance of electrodes
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 Title & Authors
A study on a dielectric heating system for amplifying the resonant gain using the capacitance of electrodes
Kim, Shin-Hyo; Lee, Chang-Woo; Bae, Han-Nah; Cho, Dae-Kweon;
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In this paper, we study a method that amplifies the output gain of a high voltage pulse using 300 kHz or higher frequency. We conducted a study on a method for amplifying the output gain using the resonance between the capacitance components of the load and the parasitic components of the circuit, instead of the conservative method for amplifying the pulse-amplitude by raising the voltage of the power stage. In particular, the method simplifies the circuit configuration throughout the appliance of flyback-type topology instead of the bridge-type. There are advantages that prevent damage from overload and the heat in the output circuit through the hard switching by amplifying the gain of the output voltage applying to the load as given by the capacitance component of the output electrode to the output pulse waveform. This study proposed a method to enhance the spatial and electrical efficiency of the contact-type heating device through the dielectric heating method applied to the field of medical and industrial heating.
Dielectric heating;High voltage pulse;High-voltage flyback topology;Autoimmune resonance;Capacitive electrode;
 Cited by
S. H. Lee and D. K. Cho, "High voltage transformer design using self-resonant characteristics of transformer", Journal of IKEEE, vol. 18, no. 1, pp. 31-36, 2014. crossref(new window)

S. H. Kim and D. K. Cho, "Design of the self-oscillation UV flash lamp power supply and the characteristic of its operation using self-resonance of the transformer", Journal of the Korean Society of Marine Engineering, vol. 38, no. 1, pp. 48-55, 2014. crossref(new window)

J. H. Jeong, H. J. Kim, and S. W. Kim, "Dielectric heating using high voltage generation of self LC resonance of transformer", Journal of Korean institute of Electrical Engineers, vol. 61, no.12, pp. 1877-1879, 2012. crossref(new window)

I. H. Oh, Analysis of a Resonant Type High Voltage Fly-back Converter in a CRT Horizontal Deflection Circuit and its High Voltage BJT Selection Guide-Line, AN9009, Fairchild Korea Semiconductor Inc. Available:, Accessed September 19, 2000.