Correlating NTC-Reading and Chip-Temperature in Power Electronic Modules

Konferenz: PCIM Europe 2015 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
19.05.2015 - 20.05.2015 in Nürnberg, Deutschland

Tagungsband: PCIM Europe 2015

Seiten: 5Sprache: EnglischTyp: PDF

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Autoren:
Schulz, Martin (Infineon Technologies AG, Warstein, Germany)
Xin, Ma (Infineon Technologies, Beijing, China)

Inhalt:
In power electronic designs, the instantaneous chip temperature is of major importance to the user. In case the chip can’t be accessed, additional sensors like NTCs can be used to measure a temperature that depends on the chip temperature. From this value, a chip temperature can be estimated. Determining the thermal correlation between chip temperature and sensor reading is not a trivial task. The present paper gives an insight into a basic but reliable procedure to extract the necessary information using an experimental setup.