H - Electricity – 05 – B
Patent
H - Electricity
05
B
H05B 41/28 (2006.01) H05B 41/288 (2006.01) H05B 41/292 (2006.01) H05B 41/38 (2006.01)
Patent
CA 2313960
A method of and apparatus for operating a high intensity gas discharge lamp is provided wherein the inverter circuit operates at a controlled frequency such that deleterious effects of the lamp's acoustic resonant frequencies are minimized. The inverter utilizes a transformer output with high leakage inductance. The high leakage inductance provides low loss switching operation and simplified control of lamp current during both ignition and warm-up. High frequency operation as well as judicious component design and specification reduces component count, assembled size and cost of ballast.
Bay David L.
Trestman Grigoriy A.
Fetherstonhaugh & Co.
Osram Sylvania Inc.
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