Patent ID: 7391166
Filing Date: 2008-06-24
Classification: H05B

Abstract:
1. A parallel lighting system for discharge lamps for a surface light source having a surface light source system and shunt transformers (CDT) including two coils, the parallel lighting system comprising: a current shunt circuit module (CD) which lights the discharge lamps in parallel, step-up transformers (T an even number of discharge lamps (DT) which are separated into two groups comprising plural discharge lamps (DT), wherein: the discharge lamps (DT) are arranged into at least two pairs each driven in opposite phases by the step-up transformers (T an electrode at one end of each of a first pair of discharge lamps (DT an electrode at one end of each of a second pair of discharge lamps (DT a second coil of the first shunt transformer (CDT