CIRCUIT SIMULATION DEVICE AND TRANSIENT ANALYSIS METHOD

摘要

PPROBLEM TO BE SOLVED: To solve such a problem that a calculation amount in transient analysis of a circuit cannot be reduced when a signal always varied at a high speed such as a clock signal is used as an input signal of the circuit. PSOLUTION: A storage part 1 stores a net list showing a test target circuit. An extracting part 3 extracts a sub net list showing a cycle circuit included in the test target circuit and outputting a cycle output signal in accordance with a cycle input signal from the net list stored in the storage part 1. An analysis part 4 executes transient analysis of the cycle circuit shown by the sub net list extracted by the extracting part 3 for one cycle of the cycle output signal output by the cycle circuit. A simulation part 5 executes transient analysis of the test target circuit shown by the net list stored in the storage part 1 based on the analysis result of the analysis part 4. PCOPYRIGHT: (C)2011,JPO&INPIT