High intensity discharge (HID) lamp starting apparatus

Details High intensity discharge (HID) lamp starting apparatus High intensity discharge (HID) lamp starting apparatus

1983-01-10

1985-04-23

Chatmon, Saxfield

Electric lamp and discharge devices: systems

Surge generator or inductance in the supply circuit

Circuit interrupter in the inductance circuit

315DIG7, 315101, 315289, H05B 3700, H05B 3900, H05B 4114

Patent

active

045132275

ABSTRACT:
Apparatus for starting and operating a high intensity discharge lamp includes a pair of terminals connectible to an AC service voltage source and coupled by a ballast to an HID lamp with a series connected gated switch and a non-linear dielectric element shunting the HID lamp, a series connected resistor and capacitor shunting the HID lamp and a bidirectional switch coupling the junction of the resistor and capacitor to the gate electrode of the gated switch whereby a delayed pulse of increased magnitude is applied to an HID lamp.

REFERENCES:
patent: 3466500 (1969-09-01), Peek
patent: 3679936 (1972-07-01), Moerkens
patent: 4334172 (1982-06-01), Wyner et al.
patent: 4347462 (1982-08-01), Adachi
patent: 4353011 (1982-10-01), Kaneda
patent: 4355264 (1982-10-01), Merli
patent: 4360762 (1982-11-01), Yamamoto et al.
patent: 4399390 (1983-08-01), Oshita et al.
patent: 4442380 (1984-04-01), Adachi
patent: 4447759 (1984-05-01), Moerken et al.
patent: 4488088 (1984-12-01), Paget

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