H - Electricity – 05 – B
Patent
H - Electricity
05
B
315/50
H05B 41/36 (2006.01) H05B 41/392 (2006.01)
Patent
CA 1256935
PHD 84-076 11 ABSTRACT: In a circuit arrangement for adjusting the operating voltage of high-pressure gas discharge lamps to a given nominal value, comprising a controllable current limiter arranged in series with the lamp and an adjustment circuit (3) controlling the latter, whose output signal is determined by the difference between a given desired value determining the nominal lamp operating voltage and an actual value dependent upon the instantaneous lamp operating voltage, there is arranged parallel to the lamp (1) a heating element (5), which is in thermal contact with a temperature-dependent element (6), which produces the actual voltage dependent upon the instantaneous lamp operating voltage.
480930
Ganser Hans-Gunther
Schafer Ralf
Stormberg Hans-Peter
Fetherstonhaugh & Co.
N.v.philips'gloeilampenfabrieken
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