| 摘要 |
<p>PURPOSE:To shorten a computation time to half and evade the divergence of computation by dividing electric characteristics into areas, performing polynomial approximation, section by section, and distinctively using the polynomial according to an area at the time of circuit analytic simulation. CONSTITUTION:The electric characteristics and the number of area divisions are inputted from an electric characteristic file 4 and an area division number file 5, the electric characteristics are divided into the area by using the number of area divisions, and the border points of the respective areas are found. Then data in the area-divided sections are stored and used to find the coefficient of the polynomial by a method of the least squares, and the coefficient is stored. Further, an area to be calculated is retrieved according to data to be simulated and the coefficient is substituted in the polynomial corresponding to the retrieved area to calculate the characteristics of an element. Then the calculated element characteristics are used to set the circuit equation of the whole circuit, which is solved to obtain a solution.</p> |
