System and method for n'th order digital piece-wise linear compensation of non-linearities temperature variations for high accuracy digital temperature sensors in extended temperature range

System and method for n'th order digital piece-wise linear compensation of non-linearities temperature variations for high accuracy digital temperature sensors in extended temperature range

A system and method is provided for a high accuracy digital temperature sensor (DTS). The system includes a differential analog temperature sensor based on bipolar junctions, providing an output signal obtained as the difference between the VBE of two bipolar junctions. This signal is converted into...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: MARAVILLA JAVIER CALPE, BOSCH ENRIQUE COMPANY, LYDEN COLIN, PENARANDA ALBERTO SANCHEZ, CLEARY JOHN ANTHONY, GALVE ALBERTO CARBAJO
Format: Patent
Sprache:chi ; eng
Schlagworte:
MEASURING
MEASURING QUANTITY OF HEAT
MEASURING TEMPERATURE
PHYSICS
TESTING
THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A system and method is provided for a high accuracy digital temperature sensor (DTS). The system includes a differential analog temperature sensor based on bipolar junctions, providing an output signal obtained as the difference between the VBE of two bipolar junctions. This signal is converted into the digital domain and compared to N-1 threshold digital values for providing piece-wise linear error correction for the variations with temperature of the different error sources within the DTS. This system and method advantageously improve the accuracy of a DTS over an extended temperature range.