H - Electricity – 05 – B
Patent
H - Electricity
05
B
315/37
H05B 41/24 (2006.01) H05B 41/285 (2006.01)
Patent
CA 1179402
- 17 - Abstract of the Disclosure An apparatus for a gaseous discharge lamp comprises a power controlling device for converting an AC voltage into a phase control output, a high frequency generating device for converting the output of the high frequency generating device into an high frequency output and a discharge lamp which is lighted by the output of the high frequency generating device and whose filament is heated. The high frequency generating device includes a DC power source for supplying a DC voltage to the power controlling device whenever the power controlling device remains to generate the phase control output. The output of the DC power source heats the filament of the discharge lamp for a period during which no phase control output is produced.
361762
Ide Katsuyuki
Kobayashi Hisao
Ohe Kempo
Ridout & Maybee Llp
Toshiba Electric Equipment Corporation
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