Wide bandgap optical switch circuit breaker
US11522542B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2019 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | Nov 24, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F77/1246
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A high-voltage switch is adapted for use as a medium-voltage direct current circuit breaker, which provides a low-cost, small-footprint device to mitigate system faults. In one example, a method for operating a wideband optical device includes illuminating the wide bandgap optical device with a light within a first range of wavelengths and a first average intensity, allowing a current to propagate therethrough without substantial absorption of the current, illuminating the wide bandgap optical device with light within the first range of wavelengths and a second average intensity that is lower than the first average intensity to allow a sustained current flow though the wide bandgap optical device, and illuminating the wide bandgap optical device with light within a second range of wavelengths to stop or substantially restrict propagation of the current through the wide gap material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.