Simulation and modeling-a CAD model for the BJT with self heating

A Gummel-Poon model that accounts for self heating in the bipolar-junction (BJT) transistor is presented. The model uses a simple but flexible RC analog circuit for thermal effects. Junction temperature as a voltage is a byproduct of the modeling approach. In contrast to the standard model, this mod...

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Bibliographic Details
Published in:IEEE circuits and devices magazine 1991-05, Vol.7 (3), p.7-9
Main Authors: Munro, P.C., Ye, F.Q.
Format: Article
Language:English
Subjects:
Analog circuits
Bipolar transistor circuits
Circuit simulation
Design automation
Heating
Mathematical model
Mathematics
Temperature dependence
Thermal resistance
Voltage
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Description
Summary:A Gummel-Poon model that accounts for self heating in the bipolar-junction (BJT) transistor is presented. The model uses a simple but flexible RC analog circuit for thermal effects. Junction temperature as a voltage is a byproduct of the modeling approach. In contrast to the standard model, this model does not require changes in BJT parameters in order to track circuit changes that affect BJT dissipated power. Although not presented here, transient behavior due to self heating and thermal capacitance has been tested, and it is also correctly predicted by this model.< >
ISSN:8755-3996
1558-1888
DOI:10.1109/101.79790