Circuit for protecting an electronic switch against short circuits
US5367424A · kind A · utility
11Cited by
6References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 20, 1991 |
| Grant date | Nov 22, 1994 |
| Priority date | — |
| Expiry date | Dec 20, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit for protecting an electronic switch against short circuits comprising circuitry for generating a variable voltage which varies in a direction that depends upon the position of a parameter representative of the current flowing through the switch relative to a reference, first and second threshold detectors comparing the variable voltage to first and second thresholds and an RS bistable circuit connected to the first and second threshold detectors to turn the switch OFF and ON when the variable voltage crosses the second or the first threshold respectively on leaving the range defined by the thresholds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.