Coupled inductor winding structure for common-mode noise
This technology is a specialized inductor design for multi-phase power converters — the circuits that efficiently regulate voltage in electronics ranging from data center servers to electric vehicles. The innovation uses a flat (planar) winding structure where the forward and return current paths are physically interleaved on the same magnetic core legs, which causes their electromagnetic fields to cancel out the unwanted high-frequency noise that typically leaks into surrounding systems. The result is a compact, manufacturable component that suppresses common-mode electromagnetic interference (EMI) without requiring bulky add-on filters. It covers two-phase converter topologies specifically, with the winding arrangement engineered to hit unity coupling — meaning near-perfect noise cancellation.
What you could build
A drop-in planar coupled inductor component for two-phase DC-DC power converters used in high-density power supplies for data center servers, EV on-board chargers, or industrial motor drives; power electronics manufacturers and their Tier-1 supply chain would be the buyers.
Who in Virginia should care
Defense electronics and power systems contractors in Northern Virginia (e.g., supporting data center infrastructure or shipboard power for Navy programs at Dahlgren or Newport News) would have direct application 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
- Shuo Wang, Fred C. Lee, Qiang Li
- Granted
- May 27, 2025
- Status
- Granted patent
- Patent number
- 12315665
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.