Solid-state lighting operable with compact fluorescent ballasts and AC mains

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United States of America Patent

PATENT NO 9913330
SERIAL NO

15275220

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Abstract

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A light-emitting diode (LED)-based solid-state lamp using an LED driving circuit with an electric current control operates normally for a regulated power from either a compact fluorescent (CFL) electronic ballast or AC mains. The LED driving circuit together with a matching circuit is configured to optimize resonant characteristics of the CFL electronic ballast used and enhance lamp compatibility without flickering, which in turn reduces possibility of overheating and fires due to incompatibility. With a cycle-by-cycle current control and power switching at a constant on-time and varied off-time, an over-rated surge current is limited, preventing occasional fire hazards occurred in both the CFL electronic ballast and the LED lamp.

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Patent Owner(s)

  • LIGHTEL TECHNOLOGIES, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hsia, Chungho Bellevue, US 84 1203

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