CPC Subgroup
H05B 41/282 with semiconductor devices (, H05B41/288, H05B41/295 take precedence)
Full Title
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 (, H05B41/288, H05B41/295 take precedence)
3 direct subcodes
Child Classifications
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- H05B 41/285 Arrangements for protecting lamps or circuits against abnormal operating conditions