Fixed-frequency PWM control for wide-range resonant power
This technology is a smarter way to control power converters — the circuits that transform electrical energy from one voltage or current level to another. Instead of using complex frequency-varying control schemes, it uses pulse width modulation (PWM), a simpler and well-understood technique, to keep the converter operating efficiently near the natural resonant frequency of its internal circuit. By carefully synchronizing the timing of switching signals on both the input and output sides, the system achieves wide voltage range flexibility and can even push power in either direction. The result is a more controllable, efficient, and versatile power converter that is easier to implement in real hardware.
What you could build
A power conversion module for EV chargers, bidirectional battery storage systems, or DC-DC converters in renewable energy installations — sold to power electronics OEMs or integrated into inverter product lines targeting automotive and grid-edge applications.
Who in Virginia should care
Defense and naval contractors in the Hampton Roads area, or data center power supply vendors in Northern Virginia's dense data center corridor, would have direct application for efficient bidirectional DC-DC conversion.
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
- Khai Doan The Ngo, Xiao Cao, Yin Wang
- Granted
- August 19, 2014
- Status
- Granted patent
- Patent number
- 8811039
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.