with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps

Circuit arrangements or apparatus for igniting or operating discharge lamps > Circuit arrangements > in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC > using static converters > with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps

Circuit arrangements or apparatus for igniting or operating discharge lamps (structurally associated with the discharge lamps H01J61/54, H01J61/56) > Circuit arrangements > in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC > using static converters > with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps