Illumination device and method for decoupling power delivered to an LED load from a phase-cut dimming angle

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United States of America Patent

PATENT NO 10736187
APP PUB NO 20170223794A1
SERIAL NO

15014790

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Abstract

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An illumination device and method are provided for controlling light emitting diodes (LEDs). The LEDs (specifically, the LED loads) are controlled, e.g., brightness and color of the LED loads, independent of a phase-cut dimmer applied to the AC mains feeding a DC power supply. The power supply is active dependent upon the duration of a conduction angle supplied from the dimmer. The power supply, however, produces drive currents that are independent from the conduction angle by using a two-stage power supply and a relatively slow and fast control loops that are controlled through a microprocessor based control circuit. Parameters stored in the control circuit are drawn by the microprocessor to control the two-stage power supply to produce the drive currents independent and decoupled from the conduction angle yet dependent on the controller parameters.

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Patent Owner(s)

Patent OwnerAddress
LUTRON TECHNOLOGY COMPANY LLC7200 SUTER RD PATENT DEPARTMENT COOPERSBURG PA 18036

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bocock, Ryan Matthew Austin, US 25 416
Lewis, Jason E Driftwood, US 45 713

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