Surge delay for current limiter
US7170732B2 · kind B2 · utility
3Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2004 |
| Grant date | Jan 30, 2007 |
| Priority date | — |
| Expiry date | Feb 20, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2017/6875
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A surge current delay time period is added to a current limit delay time period in order to permit a longer time for a possibly temporary larger-than-steady-state electrical current, such as for a start-up power requirement. A system is described for permitting a legitimate surge current by distinguishing true over-current fault conditions from temporary surges in terms of high current duration time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.