HID lamp ignitor-timer with automatic reset for dips in line vol

Details HID lamp ignitor-timer with automatic reset for dips in line vol HID lamp ignitor-timer with automatic reset for dips in line vol

1993-02-26

1995-06-13

Argenbright, Tony M.

Electric lamp and discharge devices: systems

Surge generator or inductance in the supply circuit

315119, 315DIG7, H05B 3700

Patent

active

054246172

ABSTRACT:
A high intensity discharge ballast having an ignitor which shuts off after a predetermined time period has elapsed. The ballast is sensitive to voltage dips in power line voltage and resets a timer whenever the power line voltage drops below a level sufficient for lighting a lamp load. Restart of the lamp load immediately following restoration of power line voltage is achieved without requiring that the power line voltage be removed from the ballast or otherwise reduced to approximately 0 volts before restart can be initiated.

REFERENCES:
patent: 4107579 (1978-08-01), Bodine, Jr. et al.
patent: 4665346 (1987-04-01), Tarroux
patent: 4949018 (1990-08-01), Siglock
patent: 4962336 (1990-10-01), Dodd et al.
patent: 5070279 (1991-12-01), Garbowicz et al.

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