Modular planar DC bus capacitor array for medium-voltage
This technology is a modular DC bus assembly for medium-voltage inverters that replaces bulky, hard-to-service capacitor banks with a plug-in system of small capacitor daughtercards connecting to a single laminated circuit board. The motherboard is precision-engineered with multiple conductive layers and built-in electrical shielding to safely handle the high voltages where surface electrical discharge becomes a serious design problem. The modular approach means capacitors can be swapped, scaled, or reconfigured without redesigning the entire power stage. It is specifically architected for three-phase inverters, making it directly applicable to industrial motor drives, grid-tied converters, and EV charging infrastructure.
What you could build
A drop-in modular DC bus assembly sold to power electronics OEMs building medium-voltage inverters for industrial drives, renewable energy converters, or EV fast-charging systems; buyers would be engineering teams at companies like Eaton, Danfoss, or ABB seeking faster product development cycles and improved serviceability.
Who in Virginia should care
Defense and naval contractors in the Hampton Roads and Northern Virginia corridors building medium-voltage power conversion systems for shipboard or ground vehicle electrification would be natural 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
- Lakshmi Ravi, Joshua Stewart, Dong Dong, Rolando Burgos
- Granted
- March 8, 2022
- Status
- Granted patent
- Patent number
- 11271492
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.