Circuit arrangement for operating a high-pressure gas discharge

Details Circuit arrangement for operating a high-pressure gas discharge Circuit arrangement for operating a high-pressure gas discharge

1982-12-08

1984-09-11

Laroche, Eugene R.

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

315205, 315208, 315224, 315283, 315DIG7, H05B 4124

Patent

active

044712693

ABSTRACT:
A circuit arrangement for operating a high-pressure gas discharge lamp (14) with high frequency current in which a direct voltage is supplied to a transistor bridge (5 to 8) having a transverse branch in which is arranged a choke coil (13). The clock (switching) frequency of the transistor bridge is varied within each period of the AC mains alternating voltage in dependence upon the current derived from the AC mains voltage.

REFERENCES:
patent: 4042856 (1977-08-01), Steigerwald

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