IPC Subgroup
H05B 41/14 Circuit arrangements
Introduced: September 1968
Last revised: January 2006
Full Title
Circuit arrangements or apparatus for igniting or operating discharge lamps > Circuit arrangements
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- Subclass:
- ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
6 direct subcodes
Child Classifications
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- H05B 41/16 in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC
- H05B 41/24 in which the lamp is fed by high-frequency AC
- H05B 41/26 in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC
- H05B 41/3 in which the lamp is fed by pulses, e.g. flash lamp
- H05B 41/36 Controlling
- H05B 41/46 Circuits providing for substitution in case of failure of the lamp