Mixed light arrangement

Details Mixed light arrangement Mixed light arrangement

H - Electricity

05

B

315/45

H05B 35/00 (2006.01) H01J 61/96 (2006.01) H05B 41/19 (2006.01)

Patent

CA 1128606

1 PHN 9245 ABSTRACT: The invention relates to a mixed light lamp intended to be connected to an a.c. power mains. The lamp comprises a rectifier bridge the output terminals of which are interconnected by the mixed light combin- ation consisting of a series arrangement of an incandes- cent filament and a discharge tube. The series arrange- ment is shunted by a branch comprising a capacitor. According to the invention, the branch also comprises an anti-parallel arrangement of a diode and a thyristor, the thyristor being rendered conductive just prior to the end of each half cycle of the a.c. power mains. This results in a mixed light lamp wherein the capacitance of the capacitor can be of a relatively low value and the luminous efficacy can be relatively high.

336044

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