Long time-constant integrator
US6703887B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 30, 2002 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Aug 30, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06G7/186
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A differential integrator that uses a matched resistor array to reduce integrating currents and thereby realize a long time constant. The differential integrator includes a differential operational amplifier having inverting and noninverting amplifier input terminals, and inverting and noninverting amplifier output terminals, the amplifier output terminals form inverting and noninverting output terminals, respectively, of the differential integrator. The differential integrator also includes a noninverting differential integrator input terminal and an inverting differential integrator input terminal. The differential integrator also includes a resistor array that couples the noninverting differential integrator input terminal to the inverting and noninverting input terminals of the amplifier, and the resistor array also couples the inverting differential integrator input terminal to the inverting and noninverting input terminals of the amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.