The Consideration of Plural Operating Circuits of Plural Lamps on Common bye Pass Circuit for High-Pressure Mercury Discharge Lamp

Abstract

Concerning the operating circuits for high-mercury arc lamp, the authors propose plural operating circuits of plural lamps on a common by-pass circuit which current, nearly sinusoidal, runs with power factor, close to 100%. We connect a common byepass circuit to the tap at point near power source side, using ballast with larger self-inductance than self-inductance L of ballast winding of operating circuit without by -pass circuit. Lb and condenser capacity Cb on a common bye-pass cir cuit are reasonable value.