Current measurement techniques to compensate for shunt drift
US10359449B2 · kind B2 · utility
2Cited by
7References
20Claims
0Family size
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Key dates
| Filing date | Mar 29, 2017 |
| Grant date | Jul 23, 2019 |
| Priority date | — |
| Expiry date | Oct 13, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Described are various current measurement techniques that can compensate for drift in shunt resistance. Determining a resistance of a shunt resistor, e.g., coupled to a battery terminal, can include introducing a known signal in sync with the chop phases of a dual system chop scheme, chopping the known signal out in the main signal path, and explicitly extracting the known signal in a parallel, additional signal deprocessing path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.