Apparatus and methods for processing sensed current
US10578654B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2017 |
| Grant date | Mar 3, 2020 |
| Priority date | — |
| Expiry date | Apr 20, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0009
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for averaging a sensed current includes a sampling circuit that samples at least two sampling points of each cycle of a front-end alternating current (AC) sensed signal. The two sampling points is substantially symmetrical with respect to a midpoint of each respective cycle of the front-end AC sensed signal. The device also includes a timing circuit that controls a timing of the sampling circuit to sample the front-end AC sensed signal on the at least two sampling points based on a timing signal generated by the timing circuit. The device further includes an averaging circuit that averages the two sampling points for a given cycle of the front-end AC sensed signal to produce an average sensed current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.