Low offset current sense amplifier
US10803911B2 · kind B2 · utility
1Cited by
1References
20Claims
0Family size
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Key dates
| Filing date | Jan 30, 2018 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Nov 27, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C7/08
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A current sense amplifier includes: first and second intermediate nodes coupled to first and second nodes of a sense resistor by a chopper, and to respective branches of a current mirror; a differential amplifier having inputs coupled to the first and second intermediate nodes and adapted to generate first and second voltage signals; and first and second transistors adapted to be controlled by the first and second voltage signals respectively and each having one of its main current conducting nodes coupled to a respective one of the first and second intermediate nodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.