Terminator current driver with short-circuit protection
US4831283A · kind A · utility
23Cited by
15References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 16, 1988 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | May 16, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4086
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A drive circuit for terminators in a SCSI (Small Computer Standard Interface) system comprises a bipolar transistor operating in saturated condition to keep the voltage drop to less than 200 millivolts. A second transistor serves to detect when, due to overcurrent conditions, the first transistor goes out off saturation and turns it off. Also provided is means for ensuring that the first transistor turns on before the second transistor on power-up.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.