Invention Grant
- Patent Title: Power conversion and control systems and methods for solid-state lighting
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Application No.: US12897081Application Date: 2010-10-04
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Publication No.: US08446099B2Publication Date: 2013-05-21
- Inventor: Earl W. McCune, Jr.
- Applicant: Earl W. McCune, Jr.
- Agency: Patent Law Professionals P.C.
- Agent William E. Winters
- Main IPC: H05B41/16
- IPC: H05B41/16

Abstract:
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.
Public/Granted literature
- US20120081025A1 Power Conversion and Control Systems and Methods for Solid-State Lighting Public/Granted day:2012-04-05
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