Non-intrusive power monitor
US7265533B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2004 |
| Grant date | Sep 4, 2007 |
| Priority date | — |
| Expiry date | Mar 11, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/051
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods for monitoring power in a conductor. A flex circuit may include multiple layers including a voltage sensing layer, a coil layer, and a ground layer. The coil layer includes traces that form a coil structure around a conductor when the flex circuit is wrapped around the conductor. The coil layer generates a voltage that may be integrated to determine a current in the conductor. When the flex circuit is wrapped around the conductor, the voltage sensing layer is closest to the conductor. The voltage sensing layer forms a capacitor with the conductor. Using an adjustable capacitive voltage divider, the voltage of the conductor may be determined from a voltage signal received from the voltage sensing layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.