| 摘要 |
A method, apparatus, and computer program product are described for simplifying a circuit model. The circuit model has at least interconnected active device models, resistance models, and capacitance models. The method involves identifying an active device having an input at a first circuit node coupled to a resistance, where the resistance connects to a second circuit node of the circuit. An input capacitance of the active device is computed and a time constant is computed of the resistance and a total capacitance of the circuit node, including the input capacitance of the active device. The time constant is compared to a threshold, and, if the time constant is less than the threshold, the resistance is removed from the circuit model.
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