Mains monitoring
US12158483B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 9, 2022 |
| Grant date | Dec 3, 2024 |
| Priority date | — |
| Expiry date | Mar 31, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R27/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In accordance with an embodiment, an integrated circuit chip includes a first input configured to receive a rectified potential and a second input configured to receive a reference potential; a first circuit configured to maintain the rectified potential at a constant value on the first input; a second circuit having a power supply input coupled to the first node; a first resistor series-connected to the first circuit between the second input and the first node, or connected between the first input and the first node; a third circuit connected across the first resistor and configured to deliver a signal which is an image of a current in the first resistor; and a fourth circuit configured to determine a mains frequency and/or a mains voltage based at least on the signal which is the image of the current in the first resistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.