Method and apparatus for bus fault location
US4514845A · kind A · utility
32Cited by
5References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 23, 1982 |
| Grant date | Apr 30, 1985 |
| Priority date | — |
| Expiry date | Aug 23, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/3004
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A bus fault location arrangement for locating the source of a fault condition on a bus connecting a plurality of devices energized by a power supply. When such a fault condition is detected, a bus diagnostic unit included in the arrangement transmits a signal to place a given one of the plurality of devices in a high impedance state. The bus diagnostic unit then transmits a given signal level on the bus. To determine whether the given device is the source of the fault condition, current flow between the device and the power supply is sensed and an error signal is stored when the sensed current exceeds a predetermined magnitude.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.