Color-stable, flicker-free dimming driver for LED fixtures
This technology is a sophisticated power control system for driving arrays of LED lights with high efficiency and precise dimming. It uses a two-stage architecture: a first stage adjusts the overall voltage supply using pulse-width modulation, while a second stage independently controls current through multiple LED channels simultaneously. By decoupling the operating frequencies of these two stages, the system can optimize efficiency across the full brightness range while closely mimicking the smooth dimming behavior of traditional incandescent bulbs. It also prevents the color shift that commonly occurs when LEDs are dimmed using conventional methods.
What you could build
A power driver module for commercial and architectural LED lighting fixtures that enables flicker-free, color-stable dimming from full brightness to near-off; lighting fixture OEMs and commercial building lighting system integrators would be the primary buyers.
Who in Virginia should care
Commercial building developers, data center facility operators, and lighting OEMs with Virginia manufacturing or integration presence would be plausible licensees or partners.
Readiness: Prototype likely
Concept — described but not yet demonstrated. Lab validated — supported by experimental results in the patent. Prototype likely — the text describes a built, working embodiment.
Readiness is inferred from the patent text, not from a lab visit.
The record
- Inventors
- Weiyi Feng, Fred C. Lee
- Granted
- April 7, 2015
- Status
- Granted patent
- Patent number
- 9000673
Ready to talk?
Virginia Tech Intellectual Properties handles licensing for this technology.
Prosim summaries are generated from public patent text and are not legal advice.