High-density single-turn inductor with suppressed parasitic
This patent describes a compact, single-turn inductor built with a coaxial-style structure — layered like a cable, with a central conductor, insulation, a grounded shielding layer, and an outer magnetic core. The key innovation is a design that dramatically reduces 'displacement current,' an unwanted electrical effect that degrades performance at high frequencies and high voltages. By carefully engineering how the shielding layer terminates and connects to ground — without routing that ground connection through the sensitive gap between the shield and core — the design achieves high inductance in a very small footprint. This makes it well-suited for power electronics operating at high frequency, such as wireless charging coils, resonant converters, or high-density power supplies.
What you could build
A high-density inductor component for use in high-frequency power converters, wireless charging systems, or onboard EV chargers; the primary buyers would be power electronics manufacturers and Tier 1 automotive suppliers seeking to shrink and improve the efficiency of power modules.
Who in Virginia should care
Defense electronics and power conversion companies in the Northern Virginia/Charlottesville corridor — including primes and their power supply suppliers — would be natural partners or licensees.
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
- He SONG, Jun WANG, Yue XU, Rolando BURGOS, Dushan BOROYEVICH
- Granted
- October 15, 2024
- Status
- Granted patent
- Patent number
- 12119161
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.