Digital line protection with supply voltage drop safety
US10554039B2 · kind B2 · utility
2Cited by
0References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 11, 2017 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Apr 13, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H1/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A line protection device includes a current sensor, a digital filter circuit, a switch control circuit, and a non-volatile memory circuit. The current sensor is adapted to a sense a value of electric current through the electric line. The digital filter circuit is adapted to perform digital filtering of the value of electric current. The switch control circuit is adapted to control a switch to interrupt flow of the electric current through the electric line depending on the digitally filtered value of the electric current. The non-volatile memory circuit is adapted to store a state of the digital filter circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.