Method and apparatus for providing inductive coupling and decoupling of high-frequency, high-bandwidth data signals directly on and off of a high voltage power line
US6950567B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 2, 2003 |
| Grant date | Sep 27, 2005 |
| Priority date | — |
| Expiry date | May 23, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2203/5487
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention is drawn to an electrically “closed” method and apparatus for transmitting and receiving data signals over a high voltage power line. Inductive coupling is employed for coupling and decoupling the data signal directly on to and off of a single power line wire. An exemplary device includes a high frequency inductive coupling toroid for data signals, a second (50-60 Hz) inductive coupling toroid for providing power, signal conditioning electronics for the receive and transmit signal, a fiber optics interface for electrical isolation purposes, and a weather-proof enclosure. In a preferred embodiment, the toroids are hinged for ease of installation on a power line. A pair of such couplings on either side of a fiber-optic isolator can be used to bridge transformers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.