Soft-switched DC/DC converter that eliminates fuel cell
This technology is a power conversion system designed specifically for fuel cells, converting the variable DC voltage a fuel cell produces into a stable, clean DC output suitable for powering equipment or feeding a grid. It uses multiple parallel converter circuits ('phases') that switch gently — reducing heat and stress on components — and layered control loops that actively cancel out the unwanted ripple current that would otherwise degrade fuel cell performance and lifespan. Think of it as a precision voltage regulator tailored to the quirks of fuel cell power output. The dual-loop control architecture addresses both voltage and current ripple simultaneously, which is a known and persistent challenge in fuel cell system design.
What you could build
A power electronics module integrated into fuel cell systems for stationary power generation, backup power, or vehicle propulsion, sold to fuel cell OEMs and system integrators who need a reliable DC/DC interface between the fuel cell stack and the load or grid.
Who in Virginia should care
Virginia-based defense and naval contractors (e.g., shipbuilders, submarine power system suppliers) and data center backup power operators exploring fuel cell alternatives to diesel generators would be plausible buyers.
Readiness: Lab validated
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
- Jih-Sheng Lai, Changrong Liu, Amy Ridenour
- Granted
- April 14, 2009
- Status
- Granted patent
- Patent number
- 7518886
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.