Current sense with virtual ground
US5491404A · kind A · utility
10Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 8, 1994 |
| Grant date | Feb 13, 1996 |
| Priority date | — |
| Expiry date | Feb 8, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/565
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method and apparatus for reducing the effects of ground float upon electrical signal measurements in an electronic control system. The signals are measured with respect to a virtual ground rather than signal or chassis ground, where the virtual ground provides a regular and reliable signal level regardless of circuit electrical variances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.