Patent ID: 8200467

Claim:
A method of determining values for a circuit over a cycle, comprising: specifying first-cycle values for the circuit in a first cycle of a period that characterizes a cyclic behavior of the circuit in time, the first-cycle values including voltage or current values for the circuit and providing reference cyclic values for characterizing the cyclic behavior of the circuit in the first cycle with a reference cyclic dimension that corresponds to a first grid size for characterizing on a first grid the cyclic behavior of the circuit in the first cycle; determining, from the first-cycle values, path-following values for the circuit in a second cycle of the period following the first cycle, the path-following values including transient values for characterizing a transient behavior of the circuit in the second cycle by specifying a transient polynomial in the second cycle and cyclic-correction values for characterizing the cyclic behavior of the circuit in the second cycle relative to the reference cyclic values from the first cycle, wherein a cyclic-correction dimension of the cyclic-correction values corresponds to a second grid size for characterizing on a second grid the cyclic behavior of the circuit in the second cycle relative to the reference cyclic values from the first cycle, the cyclic-correction dimension being greater than zero and less than the reference cyclic dimension; and saving at least some values based on the path-following values in the second cycle.