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Method and System for Circuit Simulation

  • US 20190188347A1
  • Filed: 12/14/2017
  • Published: 06/20/2019
  • Est. Priority Date: 12/14/2017
  • Status: Active Grant
First Claim
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1. A computer-implemented method for circuit simulation, comprising:

  • partitioning a circuit into a subcircuit-1 and a subcircuit-2 which are connected through at least one port; and

    simulating a circuit comprising the subcircuit-2 and an equivalent circuit of the subcircuit-1, wherein the equivalent circuit comprises a subcircuit selected from the group consisting of;

    (a) an equivalent voltage in series with an equivalent resistance, wherein the equivalent voltage is obtained by;

    convolving a port current with an impulse-response of subcircuit-1 port voltage to port current, to obtain a transient-equivalent-voltage; and

    adding the transient-equivalent-voltage to a subcircuit-1 port voltage under port open-circuit condition, and wherein the equivalent resistance is obtained from a selected point of the impulse-response,(b) an equivalent voltage, wherein the equivalent voltage is obtained by;

    convolving a port current with an impulse-response of subcircuit-1 port voltage to port current, to obtain a transient-equivalent-voltage; and

    adding the transient-equivalent-voltage to a subcircuit-1 port voltage under port open-circuit condition,(c) an equivalent current in parallel with an equivalent conductance, wherein the equivalent current is obtained by;

    convolving a port voltage with an impulse-response of subcircuit-1 port current to port voltage, to obtain a transient-equivalent-current; and

    adding the transient-equivalent-current to a subcircuit-1 port current under port short-circuit condition, and wherein the equivalent conductance is obtained from a selected point of the impulse-response, and(d) an equivalent current, wherein the equivalent current is obtained by;

    convolving a port voltage with an impulse-response of subcircuit-1 port current to port voltage, to obtain a transient-equivalent-current; and

    adding the transient-equivalent-current to a subcircuit-1 port current under port short-circuit condition.

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