Current measurement circuit
US10545176B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2015 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | Sep 18, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R1/203
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A current measurement circuit suitable for measuring the flow of current along a path in an electrical circuit such as a part of an electric power assisted steering system comprises a current measurement resistor that is located in series in the electrical path through which a current to be measured may flow, a first measurement sub-circuit that measures the voltage dropped across at least a part of the resistor and produces a first output signal, and a second measurement sub-circuit that measures the voltage dropped across at least a part of the resistor and produces a second output signal, and in which the electrical connections of the two sub-circuits to the resistor are independent of each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.