Device and process for fault detection of a power device
US11843240B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 8, 2021 |
| Grant date | Dec 12, 2023 |
| Priority date | — |
| Expiry date | Jun 8, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H7/09
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power device fault detection circuit includes a first fault detector configured to measure an output signal of at least one power device and output a first fault signal when a voltage of the output signal of the at least one power device exceeds a first voltage reference level after a first time period; and a second fault detector configured to measure an output signal of the at least one power device and output a second fault signal when a voltage of the output signal of the at least one power device exceeds a second voltage reference level after a second time period, where the first time period implemented by the first fault detector is shorter than the second time period implemented by the second fault detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.