Ultra-low power magnetically coupled digital isolator using spin valve resistors
US6087882A · kind A · utility
52Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1998 |
| Grant date | Jul 11, 2000 |
| Priority date | — |
| Expiry date | Dec 4, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2224/48137
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An isolator having a driver circuit which is responsive to an input signal to drive signals into a magnetic-field generator such as at least one coil. The generator is magnetically coupled to a sensor that includes spin-valve resistors which have resistance characteristics that are variable in response to the magnetic field generated by the generator. A receiver circuit incorporating a strobe generator converts the resistance changes to an output signal corresponding to the input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.