Formal Verification of Full-Wave Rectifier: A Case Study

TL;DR

This paper demonstrates the application of formal verification techniques to a full-wave rectifier circuit using the Checkmate tool, highlighting the process of adapting the tool for complex analog systems.

Contribution

It presents a novel methodology for verifying analog circuit safety properties by customizing the Checkmate tool for a full-wave rectifier case study.

Findings

Successfully verified safety properties of the rectifier

Adapted Checkmate for complex non-linear systems

Established a workflow for analog circuit formal verification

Abstract

We present a case study of formal verification of full-wave rectifier for analog and mixed signal designs. We have used the Checkmate tool from CMU [1], which is a public domain formal verification tool for hybrid systems. Due to the restriction imposed by Checkmate it necessitates to make the changes in the Checkmate implementation to implement the complex and non-linear system. Full-wave rectifier has been implemented by using the Checkmate custom blocks and the Simulink blocks from MATLAB from Math works. After establishing the required changes in the Checkmate implementation we are able to efficiently verify the safety properties of the full-wave rectifier.