Sensor circuit
US8093889B2 · kind B2 · utility
3Cited by
1References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 9, 2009 |
| Grant date | Jan 10, 2012 |
| Priority date | — |
| Expiry date | May 11, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/07
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided is a sensor circuit that is small in circuit scale, but is capable of temperature compensation. A reference voltage circuit (BL1) which compensates a temperature includes only a voltage divider circuit, and hence the sensor circuit is small in circuit scale. The sensor circuit is also capable of temperature compensation because temperature changes of reference voltages (VTH11 and VTH12) and reference voltages (VTH21 and VTH22) match a temperature change of an output signal (OUTA) of an amplifier circuit (AMP1) which is caused by a temperature change of an output signal of a Hall element (HAL1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.