H05B 41/28 using static converters
Introduced: September 1968
Full Title
Full titles differ between systems:
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
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
Of 4 combined children, 3 exist in both systems.
1 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2000.
Child Classifications
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- H05B 41/282 with semiconductor devices (, H05B41/288, H05B41/295 take precedence) since 2000 +2 CPC IPC+CPC Available in IPC and CPC
- H05B 41/288 with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps since 2000 +2 CPC IPC+CPC Available in IPC and CPC
- H05B 41/295 with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps since 2000 IPC+CPC Available in IPC and CPC