Control method and apparatus for extending runtime on a portable lighting device

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 10412805
SERIAL NO

15981130

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Abstract

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A lighting apparatus is provided including a lighting unit arranged to emit light; a switching device disposed between a power source and the lighting unit; and a controller configured to set a drive signal based on a target luminance level of the lighting unit and control a switching operation of the switching device via a drive signal to regulate a supply of electric power from the power source to the lighting unit. The controller monitors a voltage of the power source and periodically adjusts the drive signal based on the voltage of the power source.

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Patent Owner(s)

Patent OwnerAddress
BLACK & DECKER INC1207 DRUMMOND PLAZA NEWARK DE 19711

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Schaub, Michael J Nottingham, US 8 22
Schwarz, Daniel L Timonium, US 23 121
Young, Crystal G Joppa, US 7 41

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