POWER MODEL FOR EMI SIMULATION TO SEMICONDUCTOR INTEGRATED CIRCUIT METHOD OF DESIGNING THE POWER MODEL EMI SIMULATOR POWER MODEL PREPARATION COMPUTER PROGRAM AND STORAGE MEDIUM STORING THE SAME AS WELL AS POWER MODEL DESIGN SUPPORT SYSTEM

摘要

PURPOSE: A power model for a semiconductor integrated circuit is provided to easily and exactly perform EMI simulation, which is conventionally difficult, from a printed circuit board power source system. CONSTITUTION: An inside of an LSI is replaced with one of inverter circuits(3,4), output terminal, gate circuit(2) composed of wiring capacitance between first and second power sources(7,8), and equivalent internal capacitors(9-11) having serial resistors. In such a model, since the number of transistors is remarkably reduced in comparison with reality, the EMI simulation can be performed with reduced calculation time and without damaging exactness. Besides, since the detailed data of transistors are not required for this model, an LSI maker can provide the model to a user without leaking confidential information such as circuit information inside the LSI to the others.