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Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

ISO Journal TitleJ Korean Inst. IIIum. Electr. Install. Eng.
Title External Resonant Ignitior for HID Lamps by Using the Transformer
Authors Woo-Cheol Lee
DOI http://dx.doi.org/10.5207/JIEIE.2014.28.11.009
Page pp.9-16
ISSN 1225-1135
Keywords HID(High Intensity Discharge) ; Resonant Ignition ; Transformer
Abstract The electronic ballast for HID lamps needs high ignition voltage which is consisted of high voltage pulse ignitor. However, In the case of street lamp it is far from a lamp to a ballast, the conventional pulsed high voltage ignitor can not turn on the HID lamps because of reduction of ignition voltage. Therefore, it needs to do the research on a resonant ignition to turn on the HID lamps. However, the resonant circuit which is consisted of LC occurs over current, so the capacity of the ignitor increases. The capacity of the ignitor can be reduced by using the transformer. In this case, the capacitor for resonance is installed to the secondary of the transformer, and the capacitor needs high withstanding voltage. Therefore, it needs to do the research on a resonant ignition to reduce the voltage over the resonant capacitor by dividing the secondary of the transformer.