| 摘要 |
PROBLEM TO BE SOLVED: To perform an analysis with one state variable equation along passage of time and to perform an AC analysis or a transient response being a change within one cycle of a clock faithfully at high speed, when analyzing an analog circuit through a simulation by an arithmetic operation, if there is a need to solve state variable equations different from each other at a temporal change of circuit configuration.SOLUTION: With regard to a plurality of state variable equations concerning a circuit model, a state variable equation of each period is multiplied by a switch variable expressing a time change in the state variable equation of each period. The state variable equation of each period multiplied by the switch variable is summed up to form a state variable equation within the one cycle concerning each state variable. |
