High bandwidth hall sensor
US10197638B2 · kind B2 · utility
3Cited by
1References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 17, 2016 |
| Grant date | Feb 5, 2019 |
| Priority date | — |
| Expiry date | Jan 7, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/45995
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A high bandwidth Hall sensor includes a high bandwidth path and a low bandwidth path. The relatively high offset (from sensor offset) of the high bandwidth path is estimated using a relatively low offset generated by the low bandwidth path. The relatively high offset of the high bandwidth path is substantially reduced by combining the output of the high bandwidth path with the output of the low bandwidth path to generate a high bandwidth, low offset output. The offset can be further reduced by including transimpedance amplifiers in the high bandwidth sensors to optimize the frequency response of high bandwidth Hall sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.