Hybrid Algorithm for Using Bipolar Junction Transistors as Primary Thermometers

Jesús E. Molinar Solis, Victor H. Ponce-Ponce, Juan J. Ocampo Hidalgo, Herón Molina Lozano, Humberto Bracamontes del Toro, Juan J. Chávez Velarde


This work introduces a novel hybrid algorithm, which allows computing the absolute temperature of a bipolar transistor device in thermal equilibrium for sensing ambient temperature. The proposed idea relies on the measured current-voltage characteristics of the device and it can be implemented in any computing platform. Experimental data obtained, using a broad collection of commercial devices, demonstrates the accuracy of the proposed algorithm.


Thermometer, temperature, bipolar junction transistor

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