Sensor circuit
US8106646B2 · kind B2 · utility
3Cited by
1References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 9, 2009 |
| Grant date | Jan 31, 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 a reference voltage (VTH1) and a reference voltage (VTH2) 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.