Ignitor disabler

Details Ignitor disabler Ignitor disabler

1989-06-30

1991-02-26

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Surge generator or inductance in the supply circuit

315290, 315307, H05B 4114

Patent

active

049964640

ABSTRACT:
An ignitor disabler for the starter circuit of a High Intensity Discharge (HID) lamp includes means for disabling the ignitor, and means for triggering the disabling means of the ignitor after passage of a predetermined amount of time. The triggering means has a timing component that begins time measuring operation only under certain, predetermined conditions. The disabler includes means for resetting the timing component of the triggering means upon lamp ignition. In its preferred embodiment, the starter circuit specifically includes a power supply portion in use to convert alternating current to direct current and designed to provide a stable direct current output over a broad range of input signals.

REFERENCES:
patent: 3774074 (1973-11-01), Souvay
patent: 4179641 (1979-12-01), Britton
patent: 4207500 (1980-01-01), Duve et al.
patent: 4455509 (1984-01-01), Crum et al.
patent: 4495446 (1985-01-01), Brown et al.
patent: 4665346 (1987-01-01), Tarroux
patent: 4763044 (1988-08-01), Nuckolls et al.
patent: 4896077 (1990-01-01), Dodd et al.

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