H - Electricity – 05 – B
Patent
H - Electricity
05
B
315/55
H05B 41/28 (2006.01)
Patent
CA 1294665
PHD. 85.097 10 ABSTRACT: In a circuit arangement for operating high-pressure gas discharge lamps comprising a full-wave rectifier which is connected to an alternating voltage mains and whose output direct voltage is supplied to a combinatorial circuit part comprising a switching transistor, a choke coil, a fly-wheel diode and a storage capacitor, from which the lamp is fed, a further combinatorial circuit part comprising at least one electronic circuit element is arranged between the storage capacitor and the lamp and is controlled by a control device, which compares the instantaneous lamp current of higher frequency with a nominal-value signal consisting of a sinusoidal voltage having double the mains frequency and of a d.c. component having a value of at least the maximum amplitude of the sine oscillation.
513001
Albach Manfred
Schafer Ralf
Stormberg Hans-Peter
Wegener Armin
Fetherstonhaugh & Co.
Koninklijke Philips Electronics N.v.
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