Electric lamp and discharge devices: systems – Automatic substitution of the load device or electrode
Reexamination Certificate
2007-10-02
2007-10-02
Tran, Thuy V. (Department: 2821)
Electric lamp and discharge devices: systems
Automatic substitution of the load device or electrode
C315S291000
Reexamination Certificate
active
11182159
ABSTRACT:
The embodiment disclosed herein relates to a lighting system that includes an auxiliary lighting circuit for use with an electronic HID ballast. The lighting system comprises a power supply configured to provide power to a high intensity discharge (HID) lamp via an electronic ballast and a ballast power sensing component configured to determine the amount of power drawn by the electronic ballast and to convert this power drawn by the electronic ballast to a scaled voltage that is representative of the power drawn by an HID ballast. A lamp driver component is configured to provide power to an auxiliary lamp via the same power supply when the scaled voltage reaches a triggering threshold. A voltage regulation component is configured to regulate the power delivered to the auxiliary lamp such that the auxiliary lamp power stays within a predefined range.
REFERENCES:
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patent: 7019468 (2006-03-01), Deurloo et al.
patent: 7109659 (2006-09-01), Kamoi
patent: 2003/0160573 (2003-08-01), Johnson
Cosby, Jr. Melvin C.
Ilyes Laszlo S.
Nerone Louis R.
Duong Dieu Hien T
Fay Sharpe LLP
Tran Thuy V.
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