Current sensing circuitry
US11835554B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2020 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Mar 2, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45116
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present application relates to current sensing circuitry (100) that comprises a differential amplifier (110) comprising first and second inputs configured to sense a current across a sense resistance, and an output configured to output a current sense signal. The circuitry (100) further comprises a first current source, a second current source and a switch network operable in: a first phase in which the first current source is connected to the first input and disconnected from the output, and the second current source is connected to the output and disconnected from the first input; and a second phase in which the first current source is connected to the output and disconnected from the first input, and the second current source is connected to the first input and disconnected from the output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.