Self-tuning ramp compensation for current-mode DC-DC control
This technology is a self-tuning circuit that automatically stabilizes the feedback control loop inside DC-DC power converters — the building blocks that regulate voltage in everything from laptops to electric vehicles. Traditional designs require engineers to manually calculate and set a compensation ramp waveform, and that setting degrades as operating conditions change. This invention monitors the actual current waveform inside the converter in real time, differentiates it to extract slope information, and uses that to continuously adjust the ramp to maintain a mathematically optimal stability margin regardless of changes in duty cycle, component drift, or circuit topology. The result is a more robust, higher-bandwidth power supply that works reliably across a wider range of conditions without manual retuning.
What you could build
An integrated control IC or firmware module for high-performance DC-DC converters used in power management for consumer electronics, EV powertrains, data center power supplies, and industrial motor drives — sold to power semiconductor companies or ODMs embedding it into their controller chips.
Who in Virginia should care
Defense electronics primes and data center operators with large Virginia footprints (e.g., AWS, Dominion Energy infrastructure suppliers) routinely source high-reliability power management ICs where this kind of stability improvement has direct value.
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
- Pei-Hsin Liu, Fred C. Lee, Yingyi Yan, Paolo Mattavelli
- Granted
- June 13, 2017
- Status
- Granted patent
- Patent number
- 9678521
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.