K. Górecki and J. Zarębski (Poland)
Switched voltage regulators, SPICE, modelling,
selfheating, electrothermal modelling
The problem of modelling a class of monolithic integrated
circuits with the use of SPICE is considered in this paper.
The STMicroelectronics regulator L296 dedicated for
switching-mode power supplies based on the BUCK
converter has been chosen for investigations. A new large
signal electrothermal macromodel of the L296 for SPICE
is presented. This macromodel is formulated in the
network form with the use of controlled sources accessible
in SPICE. The correctness of the proposed macromodel
has been verified experimentally.