Device of protection against a polarity reversal
US7504750B2 · kind B2 · utility
7Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2004 |
| Grant date | Mar 17, 2009 |
| Priority date | — |
| Expiry date | May 15, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H1/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A device for protecting a circuit against a polarity reversal of a connection to a D.C. power supply, comprising a controllable switch interposed on said connection between a first terminal of a first voltage of the D.C. power supply and a first terminal of the circuit, and first means for turning-off with a delay the switch in the presence of a reverse polarity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.