Power conversion and control systems and methods for solid-state lighting

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United States of America Patent

PATENT NO 8446099
APP PUB NO 20120081025A1
SERIAL NO

12897081

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Abstract

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A solid-state lighting system comprises a plurality of light-emitting devices (e.g., light-emitting diodes) and an alternating current to direct current (AC-DC) converter that converts AC power to DC power for powering the plurality of light-emitting devices. The AC-DC converter is configured to perform AC-DC conversion directly, without the need for or use of a bridge rectifier or step-down transformer. According to one aspect of the invention, the light-emitting devices of the solid-state lighting system are autonomous and individually powered by a plurality of DC power supplies generated from the DC power produced by the AC-DC converter. According to another aspect, a plurality of phase-offset dimmer control signals are generated based on waveform distortions in a dimming signal produced by a conventional dimmer switch. The phase-offset dimmer control signals are used to individually control the dimming of the light-emitting devices.

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Patent Owner(s)

Patent OwnerAddress
MCCUNE EARL W2383 PRUNERIDGE AVE STE 3 SANTA CLARA CA 95050

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
McCune,, Jr Earl W Santa Clara, US 50 545

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