Data over power line design
US11888546B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2019 |
| Grant date | Jan 30, 2024 |
| Priority date | — |
| Expiry date | Dec 20, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2203/547
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A first device provides both power and data to a second device over a power line connection between the two devices. The first device includes a power line extending from a power supply, a ground line extending from a ground, a first impedance in the power line, and a second impedance in the ground line. A modulator comprised of a transistor and modulator impedance is between the first impedance and the second impedance, and a tank capacitor is between the power line and the ground line, outside the first impedance and second impedance. A comparator is coupled between the first and second impedance. A switch may be included to short out the first and second impedance, thereby enabling transmission of only power for period of time, and return to a mode of transmitting both data and power. The first device may also receive data from the second device over the power line connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.