Signal isolator using micro-transformers
US7719305B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 2008 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Feb 16, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/13091
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A logic signal isolator including a micro-transformer with a primary winding and a secondary winding. A transmitter circuit drives the primary winding in response to a received input logic signal such that, in response to a first type of edge in the logic signal, at least a first amplitude signal is supplied to the primary winding and, in response to a second type of edge in the logic signal, a second different amplitude signal is supplied to the primary winding. A receiver circuit receives corresponding first amplitude and second amplitude signals from the secondary winding and reconstructs the received logic input signal from the received signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.