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http://dx.doi.org/10.5916/jkosme.2014.38.1.48

Design of the self-oscillation UV flash lamp power supply and the characteristic of its operation using self-resonance of the transformer  

Kim, Shin-Hyo (Research and Development Team, Korea Ship Safety Technology Authority)
Cho, Dae-Kweon (Research and Development Team, Sangyoung Research and New Development, Gyeongnam College of Information)
Abstract
These Xenon flashlamp power supply for Ultra Violet has converter with high voltage conversion ratio. General model is composed of transformer with high voltage conversion ratio and voltage doubler rectifier circuit. Purpose of power supply leads dielectric breakdown of Xenon flashlamp and passes current rapidly. When passing current, it has to limit current to avoid over-heat, damage of electrode and acceleration of gas oxidation which are cause of performance degradation of lamps. Generally, inductors and resistors, which are called as "Ballast," are used to limit currents. Generally, Transformer has high turn ratio to make high voltages. But we can get high voltages using the transformer with low turn ratio which is driven with self resonance. Also, an advantage of self resonance is to make a circuit simply through impedance of transformer in resonance frequency which filters output voltage. As using an unique impedance of transformer, the circuit does not need other impedance elements like the ballast. So the power supply assures high efficiency of the arc discharge.
Keywords
Self-oscillation; Self-resonance; Ultra Violet(UV); Xenon flash lamp; Power supply;
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Times Cited By KSCI : 2  (Citation Analysis)
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