Various methods and apparatuses for a surge protection scheme
US7602596B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2005 |
| Grant date | Oct 13, 2009 |
| Priority date | — |
| Expiry date | Aug 15, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/18
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In general, various methods, apparatuses, and systems for a surge protection circuit for a Public Switched Telephone Network (PSTN) are disclosed. The surge protection circuit includes a first voltage protection device coupled to a first wire of the PSTN. A voltage protection device conducts when voltage applied across the voltage protection device at least meets a set voltage threshold. The surge protection circuit includes a second voltage protection device coupled to a second wire of the PSTN. The second voltage protection device is coupled to the first voltage protection device in series. The surge protection circuit includes a voltage divider device to cause a voltage applied differentially across the first wire and second wire to divide evenly across the first voltage protection device and the second voltage protection device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.