Circuit for interfacing between a microprocessor and a plurality of power stages, particularly for controlling electro-injectors
US5195011A · kind A · utility
6Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1990 |
| Grant date | Mar 16, 1993 |
| Priority date | — |
| Expiry date | Nov 7, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/0822
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The interface circuit described comprises a plurality of control stages, each of which can detect and indicate a short-circuit in the corresponding load or the associated power transistor. In particular, the interface circuit is arranged to disable a transistor permanently when short-circuits occur repeatedly in the load in order to prevent damage to the transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.