Theoretical Computer Science
Automatic Symbolic Verification of Embedded Systems
IEEE Transactions on Software Engineering
The d/dt Tool for Verification of Hybrid Systems
CAV '02 Proceedings of the 14th International Conference on Computer Aided Verification
Towards formal verification of analog designs
Proceedings of the 2004 IEEE/ACM International conference on Computer-aided design
Features of a tunnel diode oscillator at different temperatures
Microelectronics Journal
Review: Formal verification of analog and mixed signal designs: A survey
Microelectronics Journal
Time Domain Verification of Oscillator Circuit Properties
Electronic Notes in Theoretical Computer Science (ENTCS)
Formal Verification of Analog and Mixed Signal Designs Using SPICE Circuit Simulation Traces
Journal of Electronic Testing: Theory and Applications
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In this paper, we propose an extension to the formal verification approach of hybrid systems to verify the Tunnel Diode Oscillator (TDO) with temperature variations. This enables the same platform that is used for validating the hybrid system, to be also used to formally verify the Tunnel Diode Oscillator with temperature variations. The proposed approach utilizes the simulation traces from the actual implementation of the analog circuits to carry out the formal analysis and verification. We demonstrate our approach around Checkmate [1] and Tunnel diode Oscillator (TDO) as a case study. Current-Voltage simulations were performed on a tunnel diode and the basic feature of the I-V characteristics were analyzed in the temperature range 100--300K. TDO is designed and validated based on these characteristics. In particular, TDO has been verified formally for the continuous range of initial conditions at this temperature range.