Apparatus and method for providing AC line power to lighting devices

Apparatus and method are disclosed for providing AC line power to lighting devices such as light emitting diodes ("LEDs"). A representative apparatus comprises: a plurality of LEDs couplable to form a plurality of segments of LEDs; a current sensor; and a controller to monitor a current le...

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Bibliographic Details
Main Authors DREYER STEPHEN F, SHTEYNBERG ANATOLY, OHARA HARLAN, ZHOU DONGSHENG, DOLUCA SINAN
Format Patent
LanguageEnglish
Published 16.06.2015
Subjects
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
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Summary:Apparatus and method are disclosed for providing AC line power to lighting devices such as light emitting diodes ("LEDs"). A representative apparatus comprises: a plurality of LEDs couplable to form a plurality of segments of LEDs; a current sensor; and a controller to monitor a current level through an overall series LED current path, and to provide for first or second segments of LEDs to be in or out of the overall series LED current path at different current levels. The controller is configured to, in a first light emitting diode configuration, cause first and second segments of LEDs to be parallel to one another and in the overall series LED current path. The controller is further configured to, in a second light emitting diode configuration, cause first and second segments of light emitting diodes to be coupled in series and in the overall series light emitting diode current path.
Bibliography:Application Number: US201414163923