Single-switch regenerative drive for small switched
This technology is a control system for a two-phase switched reluctance motor that uses just one controllable switch instead of the multiple switches typically required. It manages both speeding up (motoring) and slowing down (braking) the motor through two coordinated feedback loops that continuously monitor and adjust motor speed and electrical current. When braking, the system cleverly converts the motor's spinning energy back into electricity rather than wasting it as heat. The result is a simpler, cheaper motor drive circuit that still delivers full bidirectional speed control.
What you could build
A low-cost motor controller module for small appliances, HVAC fans, or light industrial equipment where regenerative braking and simplicity matter; OEM motor drive manufacturers and appliance platform teams would be the buyers.
Who in Virginia should care
Defense and industrial electronics contractors in Northern Virginia or the Hampton Roads corridor who supply compact motor drive systems for naval or ground vehicle auxiliary equipment.
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
- Krishnan Ramu, Keunsoo Ha, Sung-Yeul Park
- Granted
- June 19, 2012
- Status
- Granted patent
- Patent number
- 8203302
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.