Instruction set modeling of micro-controllers for power converter simulation

Simulation has become an increasingly important design tool as power converter technology has evolved. Programmable digital control requires a simulation model that can incorporate the control software without degrading the speed of the simulator. This can be accomplished by extending the instruction set model (ISM) concept originally developed for digital simulations. This paper develops the principles by which the ISM concept can be adapted to the analog/mixed-signal simulation of power converters. A model of a commercial microcontroller is used to present typical simulation applications that demonstrate the important benefits achieved.