Thermal Coupling of NTC Chip Thermistors

A novel device called thermal coupling of NTC chip thermistors was made by combining two electrically isolated chip thermistors Th 1 and Th 2 having small dimensions (0603) and small power (1/10 W). The first thermistor Th 1 (input thermistor) is self-heating at a constant supply voltage U - it gene...

Full description

Saved in:
Bibliographic Details
Main Authors: Bodic, Milan Z., Aleksic, Stanko O., Rajs, Vladimir M., Damnjanovic, Mirjana S., Kisic, Milica G.
Format: Conference Proceeding
Language:English
Subjects:
Chip thermistors
Cogeneration
Couplings
Current measurement
heat transfer
Resistance
Semiconductor device measurement
Temperature measurement
thermal junction
Thermistors
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A novel device called thermal coupling of NTC chip thermistors was made by combining two electrically isolated chip thermistors Th 1 and Th 2 having small dimensions (0603) and small power (1/10 W). The first thermistor Th 1 (input thermistor) is self-heating at a constant supply voltage U - it generates heat while the second thermistor Th 2 is passive (output thermistor) - it receives heat. Thermistors are electrically insulated, but thermally coupled. The temperature dependence of NTC chip thermistors R(T) was measured and exponential factor of thermistor resistance B was determined. After that, current I 1 of self-heating thermistor as a function of supply voltage U and using resistance R 1 of input thermistor was determined. The electrical resistance of output thermistor R 2 was measured by multimeter at the same time as the current of input thermistor. Using the Steinhart - Hart equation the temperature T 1 and T 2 of both thermistors were determined. The application of novel thermistor junction is expected in power microelectronics for electrical decoupling/thermal coupling of input to output slowly changeable signals.
ISSN:2161-2536
DOI:10.1109/ISSE61612.2024.10604210