High precision current sensing using sense amplifier with digital AZ offset compensation
US10852329B2 · kind B2 · utility
1Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2018 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Dec 19, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45588
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A current sensing circuit includes a current sense amplifier and a correction circuit. The current sense amplifier has an offset voltage. The correction circuit is configured to evaluate the offset voltage of the current sense amplifier. The correction circuit is further configured to issue a correction signal to the current sense amplifier based upon the evaluated offset voltage. The correction signal is to adjust the offset voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.