Patent ID: 6094011
Filing Date: 2000-07-25
Classification: H02K,H05B

Abstract:
A discharge lamp lighting device for lighting a plurality of discharge lamps, comprising:a generator including a multipolar rotor driven by an internal combustion engine and a stator having a plurality of discharge lamp lighting generating coils arranged in a manner to be electrically independent from each other;said plurality of discharge lamp lighting generating coils of said generator outputting voltages fed to said discharge lamps, respectively;said stator of said generator including a means for loosening coupling of said plurality of discharge lamp lighting generating coils to each other in order to restrain an armature reaction which causes said plurality of discharge lamp lighting generating coils to act on each other;said plurality of discharge lamp lighting generating coils each having output-voltage to output-current characteristics exhibiting drooping characteristics wherein an output voltage of each of said plurality of discharge lamp lighting generating coils is reduced with an increase in output current thereof;said output-voltage to output-current characteristics of each of said plurality of discharge lamp lighting generating coils being so set that an output voltage of each of said plurality of discharge lamp lighting generating coils at a non-load state thereof may be higher than a break-down voltage of said discharge lamp, a short-circuit current thereof may have a level sufficient to restrict a discharge current of said discharge lamp just after starting of discharge thereof to an allowable level or below, and a voltage across said discharge lamp and a discharge current thereof at a steady state thereof each are kept within a rated range.