| 摘要 |
PROBLEM TO BE SOLVED: To automatically design wiring specifications and their driving parameters by using a printed wiring designing support device without performing comprehensive transmission line simulation. SOLUTION: According to a net list including circuit information, additional information including driving condition information of an electronic device used to design a circuit and a device library including element information of the electronic device, a calculating means 11 calculates driving source voltage V1, driving source internal resistance R1, and a load model; a calculating means 12 calculates total load capacity C; a calculating means 13 calculates a load current i2; a calculating means 14 calculates a driving current i1; a calculating means 15 calculates wiring characteristic impedance Z and damping resistance R2; and a calculating means 16 calculates wiring width (w), so that wiring is carried out with the proper wiring width and dumping resistance value.
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