Power supply for hid lamp

Details Power supply for hid lamp Power supply for hid lamp

H - Electricity

05

B

355/47, 315/63

H05B 41/30 (2006.01) H05B 41/04 (2006.01) H05B 41/16 (2006.01)

Patent

CA 1162322

Abstract of the Disclosure A power supply for a high intensity discharge lamp is provided wherein the secondary windings of a pair of lamp strike pulse transformers are connected in series with the HID lamp directly across the AC supply, the impedance of these secondary windings acting as the only ballast elements of the power supply. The HID lamp is chosen to have relative- ly high operating and maximum starting currents so that warm- up time of the lamp is dramatically reduced while employing the lamp strike pulse transformers to perform the dual func- tion of starting the lamp when either hot or cold and acting as the current limiting ballast for the lamp both during warm-up and under normal operating conditions.

387738

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