Apparatus and methods for current-based models for characterization of electronic circuitry
AssigneeNascentric, Inc.
InventorJohn F. Croix
Life of this patent
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Abstract
A system for characterizing a circuit includes a computer. The computer operates on a model of the circuit. The model has an input and output. The computer is configured to supply a stimulus to the input of the model of the circuit. The input stimulus has an input value. The computer is also configured to supply a stimulus to the output of the model. The output stimulus has an output value. The computer is further configured to sweep the input and output values through a first and second set of swept values, and to characterize an output current of the model of the circuit as a function of the first and second swept values.
Claims29
A system for modeling a circuit represented by a first model comprising at least one input and at least one output, wherein the system comprises a computer configured to:
- perform a direct-current (DC) simulation of the first model;
- during the DC simulation, perform a DC sweep of a first stimulus on the input over a first range of DC values;
- during the DC simulation, perform a DC sweep of a second stimulus on the output over a second range of DC values;
- determine a measured output current on the output as a function of the first range and the second range;
- and
- generate a second model of the circuit, the second model configured to model the output current of the circuit responsive to the measured output current.
A computer readable medium storing a plurality of instructions which, when executed, implement a method for modeling a circuit represented by a first model comprising at least one input and at least one output, the method comprising:
- performing a direct-current (DC) simulation of the first model;
- during the DC simulation, performing a DC sweep of a first stimulus on the input over a first range of DC values;
- during the DC simulation, performing a DC sweep of a second stimulus on the output over a second range of DC values;
- determining a measured output current on the output as a function of the first range and the second range;
- and
- generating a second model of the circuit, the second model configured to model the output current of the circuit responsive to the measured output current.
A method for modeling a circuit represented by a first model comprising at least one input and at least one output, the method comprising:
- performing a direct-current (DC) simulation of the first model;
- during the DC simulation, performing a DC sweep of a first stimulus on the input over a first range of DC values;
- during the DC simulation, performing a DC sweep of a second stimulus on the output over a second range of DC values;
- determining a measured output current on the output as a function of the first range and the second range;
- and
- generating a second model of the circuit, the second model configured to model the output current of the circuit responsive to the measured output current.
Dependencies are inferred from the claim text.