Mixed light arrangement

Details Mixed light arrangement Mixed light arrangement

1979-09-24

1982-02-16

La Roche, Eugene R.

Electric lamp and discharge devices: systems

Discharge device and/or rectifier in the supply circuit

Plural discharge devices and/or rectifiers in the supply...

315 49, 315179, 315188, 315208, 315241R, H05B 4116, H01J 6156, H01J 6196

Patent

active

043161243

ABSTRACT:
The invention relates to a mixed light lamp arrangement intended to be connected to an a.c. power supply. The lamp arrangement comprises a rectifier bridge having output terminals interconnected by the mixed light combination consisting of a series arrangement of an incandescent filament and a discharge tube. The series arrangement is shunted by a branch comprising a capacitor and an anti-parallel arrangement of a diode and a thyristor with the thyristor being rendered conductive just prior to the end of each half cycle of the a.c. power supply. This results in a mixed light lamp wherein the capacitance of the capacitor can have a relatively low value and the luminous efficacy can be relatively high.

REFERENCES:
patent: 3527982 (1970-09-01), Lake
patent: 3666986 (1972-05-01), Lake et al.

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