Electronic driver circuit with multiplexer for alternatively driving a load or a bus line, and method
US6353296B1 · kind B1 · utility
2Cited by
9References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1999 |
| Grant date | Mar 5, 2002 |
| Priority date | — |
| Expiry date | Oct 15, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/017581
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An electronic system (101/102) for use in a car has an electronic control unit (10) and, in the alternative, either a passive load (11) or an active logic (12) attached thereto. The control unit (10) comprises a push-pull arrangement (20) which can provide drive signals for the load (11) as well as for the logic (12), a multiplexer (45) to alternatively forward a load drive signal of a bus signal to the arrangement (20), and a register (90) to store a mode signal. Further, the control unit (10) automatically determines whether either the load (11) or the logic (12) is attached by analyzing electrical parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.