Patent · US Active

Highly accurate temperature sensors, and calibrations thereof, for use with implantable medical devices

US11077308B2 · kind B2 · utility

1Cited by
3References
23Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 25, 2018
Grant dateAug 3, 2021
Priority date—
Expiry dateDec 10, 2039

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01K2219/00
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

Certain embodiments of the present technology relate to temperature sensors for using in an implantable medical device, and methods for use therewith. Such a method can include alternating between producing a first base-to-emitter voltage drop (VBE1) and a second base-to-emitter voltage drop (VBE2), and alternating between using a capacitor to store the VBE1, which is complimentary to absolute temperature (CTAT), and using the same capacitor to store a ΔVBE=VBE2−VBE1, which is proportion to absolute temperature (PTAT). The method also includes using a sigma-delta modulator that includes the capacitor to produce a signal having a duty cycle (dc) indicative of the ΔVBE stored using the capacitor, and producing a temperature measurement based on the signal having the duty cycle (dc) indicative of the ΔVBE.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.