SUPPLEMENTAL, BACKUP OR EMERGENCY LIGHTING SYSTEMS AND METHODS
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United States of America Patent
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Issued Date -
Aug 28, 2014
app pub date -
May 3, 2010
filing date -
May 1, 2009
priority date (Note) -
Abandoned
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Abstract
A supplemental lighting system includes a charging circuit having a reference voltage for the charging circuit set through changes to reference resistances, and/or having an output voltage, current or power set through a connector configuration. In one example, a battery storage connector can be used to select a particular resistance for setting the reference voltage. Additionally, a supplemental lighting system may have a rechargeable battery coupled to a low-voltage part of the circuit, for example protected by an isolation circuit. Furthermore, a lithium ion or similar rechargeable battery supply can include a circuit for allowing it to be used with a circuit designed for a NiCad powered system or with a circuit designed for a lithium ion powered system.
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