Data processing: structural design – modeling – simulation – and em – Simulating electronic device or electrical system – Circuit simulation
Reexamination Certificate
2005-08-23
2005-08-23
Phan, Thai (Department: 2128)
Data processing: structural design, modeling, simulation, and em
Simulating electronic device or electrical system
Circuit simulation
C703S007000
Reexamination Certificate
active
06934672
ABSTRACT:
A system provides primary and alternate control circuits to a controlled system through an output port. A monitoring circuit that monitors a parameter of the controlled system selects the control methodology. The primary control circuit, consisting of a primary active part and a regulator, and an alternate control circuit receive feedback from the controlled system. A switching mechanism, controlled by an output of the monitoring circuit, connects the appropriate control circuit to the controlled system and switches internal connections as needed. During alternate mode, a simulator of the controlled system as driven by the primary active control circuit provides an output representative of the output of the regulator that would cause the current output of the controlled system if the system were in primary mode. This simulator output is used when transitioning back to primary mode to minimize transients in the output of the controlled system.
REFERENCES:
patent: 4465966 (1984-08-01), Long et al.
patent: 5442534 (1995-08-01), Cuk et al.
patent: 6246221 (2001-06-01), Xi
patent: 6600299 (2003-07-01), Xi
Brady W. James
Phan Thai
Swayze, Jr. W. Daniel
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
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