Circuitry for compensating for gain and/or phase mismatch between voltage and current monitoring paths
US11644521B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2022 |
| Grant date | May 9, 2023 |
| Priority date | — |
| Expiry date | Mar 9, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/375
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Circuitry comprising: a voltage monitoring path; a current monitoring path; a reference element of a predefined impedance; and processing circuitry, wherein in operation of the circuitry in a calibration mode of operation: the voltage monitoring path is operative to output a signal indicative of a voltage across the reference element in response to a reference signal applied to the reference element; the current monitoring path is operative to output a signal indicative of a current through the reference element in response to the reference signal; and the processing circuitry is operative to: receive the signal indicative of the voltage across the reference element and the signal indicative of the current through the reference element; generate an estimate of an impedance of the reference element; and determine a compensation parameter for an element of the circuitry for compensating for a difference between the estimate of the impedance and the predefined impedance of the reference element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.