Combined transformer-inductor with built-in EMI shielding
This technology combines a transformer and a resonant inductor into a single integrated magnetic component for power converters, while simultaneously building in electromagnetic interference (EMI) shielding. The key innovation is a set of 'shield windings' that are electrically connected to the primary-side ground, which suppresses the high-frequency noise that power converters typically radiate or inject into connected systems. By integrating these three functions—power transformation, inductance, and EMI filtering—into one magnetic core with three legs, designers can shrink the size, reduce part count, and improve noise performance of power supplies compared to using discrete components. This is particularly relevant for high-frequency, multi-output power converters such as those used in data center power supplies, EV on-board chargers, and industrial power systems.
What you could build
A compact, high-efficiency power supply module—for data center servers, EV chargers, or telecom infrastructure—where EMI compliance and power density are both critical requirements; buyers would be power supply manufacturers and ODMs supplying these end markets.
Who in Virginia should care
Defense electronics and data center operators in Northern Virginia, plus power electronics suppliers serving the federal and commercial tech sectors, would have direct interest.
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
- Ahmed Nabih, Feng Jin, Qiang Li
- Filed
- Patent pending — filed July 31, 2023
- Status
- Application
- Publication number
- US20250046512A1
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.