LSI POWER SYSTEM MODEL FOR EMI SIMULATION, AND EMI SIMULATION

摘要

PROBLEM TO BE SOLVED: To accurately and easily perform EMI simulation from a printed board power system. ;SOLUTION: This model 30 has an LSI modeled as one variable resistance 20 or transistor according to the LSI source current waveform. Its resistance value varies with the voltage at a power supply terminal 35 and time and behaves similarly to the power supply system of the object LSI. Consequently, an electromagnetic field produced by the power supply system can accurately be simulated with a small calculation quantity. The model is generated from the source current waveform, so an LSI maker can provide a model for a user without leaking secret information such as circuit information on the inside of the LSI to others.;COPYRIGHT: (C)2000,JPO