Study and engineering practice of modeling IC controllers for switch mode power supplies in SIMPLIS environment

This paper introduces some most recent results in a research project that aims at developing computer simulation models of integrated circuit (IC) controller chips inside switch mode power supplies. These models play a very important role to smooth operation of the electronic design verification test (eDVT) system. Based on engineering practice, the challenges to model power supply controllers are discussed and some strategies and methodology for such modeling activities in SIMPLIS environment are proposed in this paper. The way to model NCP1230A, an IC controller delivered by ON Semiconductor, is taken as an example to show the modeling process. Simulation waveforms of several established models and the related experimental results are given to verify the validity of the proposed strategies and methodology.