Rail to rail rectifying integrator
US6469561B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2001 |
| Grant date | Oct 22, 2002 |
| Priority date | — |
| Expiry date | Jul 20, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R19/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A rectifying integrator of an input signal with full output dynamics, relative to a voltage reference intermediate with respect to the dynamics of the input signal, includes a first line of integration having at least one integrator for integrating that portion of the input signal that exceeds the voltage reference, and includes a hold capacitor coupled in cascade to the integrator. The rectifying integrator includes a second line of integration, identical to the first line of integration, for integrating that portion of the input signal that remains below the voltage reference. An adder output stage generates an output signal equal to the difference between the voltages existing on the hold capacitors of the first and second lines of integration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.