Two-wire loop electric circuit arrangement
US5065152A · kind A · utility
1Cited by
5References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 25, 1989 |
| Grant date | Nov 12, 1991 |
| Priority date | — |
| Expiry date | Jan 25, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08C19/02
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The circuit includes a loop (3) in which a signal current flows; a supply voltage generation circuit (1); a signal conversion circuit (2); a switch (5) operative to connect either the supply voltage generation circuit or the signal conversion circuit into the loop (3) at any instant, the outputs of the supply voltage generation circuit and the signal conversion circuit being supplied to a common load (4) which controls operation of the switch (5); and a pair of capacitors (6,7) connected across the outputs of the supply voltage generation circuit and the signal current conversion circuit, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.