Power line signal coupler

• US 10,128,906 B2
• Filed: 07/11/2017
• Issued: 11/13/2018
• Est. Priority Date: 07/11/2016
• Status: Active Grant

• Current Assignee: Esker Technologies, LLC
• Original Assignee: Esker Technologies, LLC
• Inventors: Olmstead, Brian S.
• Primary Examiner(s): Nguyen, Hung T
• Application Number:
  US15/646,266
• Publication Number:
  US 20180013468A1
• Time in Patent Office: 490 Days
• Field of Search: 340455, 340538, 34053812, 340635, 34063611, 340657, 307150, 317 615
• CPC Class Codes: H04B 2203/5425 improving S/N by matching impedance, noise reduction, gain control
• CPC Class Codes: H04B 2203/5487 cables
• CPC Class Codes: H04B 2203/5491 using filtering and bypassing
• CPC Class Codes: H04B 3/548 the power on the line being DC arrangements for feeding power H04L12/10; extracting feeding power from signals H04L25/02
• CPC Class Codes: H04B 3/56 Circuits for coupling, blocking, or by-passing of signals

Abstract

A main power line (+ and − lines) is coupled to a power supply, for example a car battery, grounded to a vehicle chassis. Positive and negative main power lines are coupled to a power line gateway module, and spliced to carry power for a segment, until receiving, by splices, RF power line communcations. The main power lines, now carrying power and RF power line communications are then coupled to remote modules. RF power line communication carries signal from the power line gateway module to a impedance matching network or a transformer are used to match impedances.

Claims

1. A method of configuring an electrical circuit comprising:

selecting a length and gauge of power wire to achieve a targeted inductance based on an impedance of said circuit and a resistance of said circuit.

2. The method according to claim 1, wherein said targeted inductance is approximately 1 microhenry.

3. The method according to claim 1, according said impedance approximately 40 ohms.

4. The method according to claim 1, said resistance approximately 120 ohms.