Arrangement and method for providing a temperature-dependent signal
US8044702B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 8, 2006 |
| Grant date | Oct 25, 2011 |
| Priority date | — |
| Expiry date | Apr 27, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K7/01
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An arrangement and a method for providing a temperature-dependent signal. Several current sources (1, 2) are provided, which are switchably connected to one or more diodes (8). The conducting-state voltage of the diode is compared with a reference signal (Vr) in a comparator (10). A control circuit (12) controls the current sources (1, 2) so that for calibrating in each calibration step, only one of the current sources is activated and, in another calibration step, all of the current sources (1, 2) are activated. Therefore, error terms can be calculated, which allow a very exact provision of a temperature-dependent signal with respect to the matching of the current sources to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.