Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras
Method for Determining Distortion Contribution of Individual Elements in an Analog Circuit
Categories for this Invention
Category – Electrical Engineering, Circuit Diagnostics
Applications -Distortion Analysis and Optimization in Analog Circuits
Industry – Electronics Manufacturing, Semiconductor, Circuit Design and Testing
Market – Electronic Design Automation Market was valued at USD 12.9 billion in 2022 and is estimated to register a CAGR of over 10% between 2023 and 2032.
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Problem Statement
- Traditional methods for diagnosing distortion in analog circuits are inefficient, particularly with nonlinear elements, lacking applicability in complex configurations.
- There is a need for a systematic approach to identify distortion contributions of individual elements without requiring detailed models, accommodating variations, and extending applicability beyond sinusoidal inputs.
Technology
Simulation with SPICE-like Model:
- Utilizes SPICE-like simulation to analyze output distortion of analog circuits.
Replacement of Elements:
- Substitutes circuit elements with identical operating points but different nonlinearities to identify distortion contributions.
Iterative Nonlinear Term Identification:
- Iteratively varies scaling factors of nonlinear terms to identify distortion contributions.
Set of Linear Equations:
- Derives a set of linear equations from simulation results to represent distortion contributions.
Efficient Distortion Analysis:
- Provides a systematic and efficient method to determine distortion contributions without requiring detailed device models or closed-form descriptions.
Key Features / Value Proposition
- Systematically identifies distortion contributions of individual circuit elements or blocks.
- Offers efficient simulation-based analysis without the need for detailed device models, enabling optimization and robustness evaluation of distortion cancellation schemes.
- Streamlines circuit diagnostics by pinpointing distortion sources in complex analog circuits.
- Saves time and resources by offering an automated, simulation-driven approach to distortion analysis, enhancing design efficiency and performance optimization.
Questions about this Technology?
Contact For Licensing
sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in
Research Lab
Prof. Nagendra Krishnapura
Department of Electrical Engineering
Intellectual Property
- IITM IDF Ref. 1104
- IN 375099 (Patent Granted)
Technology Readiness Level
TRL- 4
Technology Validated in lab