HID ballast and lamp tester

Details HID ballast and lamp tester HID ballast and lamp tester

2007-10-16

2007-10-16

Philogene, Haissa (Department: 2821)

Electric lamp and discharge devices: systems

Surge generator or inductance in the supply circuit

Circuit interrupter in the inductance circuit

C315S135000, C315S289000, C315S243000, C315S246000, C315SDIG002

Reexamination Certificate

active

11363362

ABSTRACT:
The instant invention relates to an HID ballast and lamp tester, which provides visual indication of failure of either the ballast or lamp by continuously monitoring the status of the HID lighting system. The HID ballast and lamp tester detects and utilizes the voltage difference between the open circuit voltage and the operating voltage of the ballast to trigger visual indication of the open circuit voltage output of the ballast when the HID lamp has failed. The tester circuit comprises the ballast source, a full wave bridge rectifier and filter capacitor circuit, a voltage divider network circuit, a trigger circuit of a diac bi-directional silicon switch and a light emitting diode.

REFERENCES:
patent: 3771014 (1973-11-01), Paget
patent: 4318031 (1982-03-01), Lonseth et al.
patent: 5321338 (1994-06-01), Nuckolls et al.
patent: 5323116 (1994-06-01), Atria
patent: 6127782 (2000-10-01), Flory et al.
patent: 6429597 (2002-08-01), Flory et al.

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