System, apparatus, and method for controlling lamp operation when subject to thermal cycling

System, apparatus, and method for controlling lamp operation when subject to thermal cycling

A system, apparatus, and method for preventing thermal cycling of a ballast coupled to one or more lamps. A monitor circuit is provided to monitor for activation of the ballast's thermal protection mechanism. Such monitoring may include monitoring of the ballast's thermal protection mechan...

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Hauptverfasser: READIO PHILIP O, LENTZ TRACY L, KENSOK TIMOTHY J
Format: Patent
Sprache:eng
Schlagworte:
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
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creator READIO PHILIP O
LENTZ TRACY L
KENSOK TIMOTHY J
description A system, apparatus, and method for preventing thermal cycling of a ballast coupled to one or more lamps. A monitor circuit is provided to monitor for activation of the ballast's thermal protection mechanism. Such monitoring may include monitoring of the ballast's thermal protection mechanism itself, or monitoring lamp current and ambient temperature in the vicinity of the ballast to determine that the ballast's thermal protection mechanism has been activated. Power to the ballast is temporarily disabled when the ballast's thermal protection mechanism has been activated, thereby preventing thermal cycling of the ballast, and consequently of the lamps, when power to the ballast has been removed.
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subjects CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
title System, apparatus, and method for controlling lamp operation when subject to thermal cycling
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