Detecting device and current sensor
US9291666B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 29, 2012 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | Oct 12, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/091
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A detecting device includes a detecting part configured to detect a change in an object to be detected so as to output a detection signal, an amplifying part configured to amplify the detection signal output from the detecting part to output a first amplification signal, a reference voltage supply part configured to supply a reference voltage to the amplifying part, the reference voltage being input to the amplifying part to be output as a second amplification signal, a switching part configured to switch a connection between the detecting part and the amplifying part or a connection between the amplifying part and the reference voltage supply part based on a control signal input thereto, and a comparing part configured to compare a predetermined amplification factor in the amplifying part, with an amplification factor obtained from the second amplification signal so as to output the comparison result as a comparison signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.