Signal conditioning circuit apparatus and method
US5792956A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 20, 1995 |
| Grant date | Aug 11, 1998 |
| Priority date | — |
| Expiry date | Dec 20, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/347
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus and method utilized in conditioning an input signal from a transducer operatively coupled to a machine by self-biasing a circuit including an op-amp having an inverting signal input terminal, a non-inverting signal input terminal, bias voltage terminals and a signal output terminal. A power supply is operatively coupled to the bias voltage terminals via a single pair of supply lines and an input signal is directed to an input terminal of the op-amp. The op-amp outputs a conditioned signal to the supply lines which is superimposed with said DC bias voltage across the supply lines wherein the characteristics of the conditioned signal may be monitored via the supply lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.