Patent ID: 6499004
Filing Date: 2002-12-24
Classification: G05B,G06F

Abstract:
A simulation apparatus using a moment method which segments an electronic apparatus into elements, so as to simulate an electric current flowing in the elements, the simulation apparatus comprising:a first calculator that calculates a mutual impedance at a sampling frequency, calculates an approximation coefficient, and expresses the mutual impedance in an approximation expression, based on the mutual impedance and the sampling frequency, in terms of an exponent and exponent powers; a translator that forms a plurality of simultaneous differential equations by setting the approximation coefficient to an initial value with respect to the plurality of simultaneous differential equations derived by performing a Fourier transform on a plurality of simultaneous equations of the moment method into which the approximation expression is substituted; and a second calculator that calculates an electric current in a time domain flowing in a specified element or that calculates related values of the time domain and derives the electric current by solving the simultaneous differential equations formed by the translator and calculating the electric current.