Magnetic sensor with serial resistor for asymmetric sensing field range
US11169228B2 · kind B2 · utility
0Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2019 |
| Grant date | Nov 9, 2021 |
| Priority date | — |
| Expiry date | Mar 19, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/39
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure generally relates to a Wheatstone bridge that has four resistors. Each resistor includes a plurality of tunneling magnetoresistance (TMR) structures. Two resistors have identical TMR structures. The remaining two resistors also have identical TMR structures, though the TMR structures are different from the other two resistors. Additionally, the two resistors that have identical TMR structures each have an additional non-TMR resistor as compared to the remaining two resistors that have identical TMR structures. Therefore, the working bias field for the Wheatstone bridge is non-zero.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.