Circuit arrangement for the electrically isolated transfer of digital signals
US6853685B1 · kind B1 · utility
2Cited by
6References
28Claims
0Family size
Inventor
Key dates
| Filing date | Jul 16, 1999 |
| Grant date | Feb 8, 2005 |
| Priority date | — |
| Expiry date | Jul 16, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0266
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
For the electrically isolated transmission of digital signals, an isolating path of a channel formed by a transformer is used. The channel further includes a conversion stage for converting the digital signal to a transmissible coupling signal and a conversion stage for converting a coupling signal to the digital signal. This conversion is accomplished by a monostable multivibrator. The coupling signal is a square-wave voltage which is generated by a delay circuit in the conversion stage and is converted on the isolating path to a square-wave voltage serving as the coupling signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.