Potentiometer circuit
US4203074A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 22, 1977 |
| Grant date | May 13, 1980 |
| Priority date | — |
| Expiry date | Feb 22, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01C10/36
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A potentiometer circuit by which a continuous, sawtooth 360 degree ramp output voltage is obtained from a single turn continuous rotation potentiometer having an annularly disposed resistance element and two angularly displaced rotatable wipers providing displaced voltages from the resistance element. The circuit includes comparator means responsive to one of the wiper voltages providing a comparator output signal and switch means responsive to the comparator output signal for switching between the wiper voltage outputs to provide a continuous, sawtooth 360 degree ramp analog output voltage. An analog-digital converter may be connected to it to provide a digital output voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.