Title:
ELECTRONIC DEVICE
Document Type and Number:
Japanese Patent JPS5693296
Kind Code:
A
Abstract:
An electronic device (20-61) for the starting and a.c. operation of a capacitively stabilized discharge lamp (7) includes a controlled semiconductor switching element (22) which, in the operating condition of the lamp, is briefly conductive in each half cycle of the AC supply. The control circuit of the semiconductor switching element (22) includes a second switching element (25) which, during the starting procedure of the lamp, ensures that the semiconductor switching element (22) is made conductive only every alternate half cycle thereby to improve the ignition of the lamp.
Inventors:
ADORIANUSU MARUCHINUSU YOHANES
FUBERUTOUSU MASHIASU YOZEFU SH
FUBERUTOUSU MASHIASU YOZEFU SH
Application Number:
JP17796580A
Publication Date:
July 28, 1981
Filing Date:
December 16, 1980
Export Citation:
Assignee:
PHILIPS NV
International Classes:
H05B41/04; H05B41/14; (IPC1-7): H05B41/14