Circuit Board Design System for Electromagnetic Interference Analysis
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Solution Overview
Problem
Current printed circuit board design systems lack the capability to automatically analyze electromagnetic interaction between circuit elements, relying on skilled designers for visual checks, which is inefficient and prone to errors.
Innovation Solution
A design system that analyzes electromagnetic interaction by selecting pairs of circuit elements, generating equivalent circuit data, and calculating interference using a substitution section, allowing for automated analysis and correction of electromagnetic interference in circuit board design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If automated CAD design is used for printed circuit board design, then design efficiency is improved, but the capability to analyze electromagnetic interaction between components is lost
Solution Approach 1:
The patent introduces an intermediary electromagnetic analysis system that acts as a bridge between the automated CAD design system and electromagnetic interaction analysis. This intermediary component automatically performs electromagnetic field calculations and provides feedback to the CAD system, enabling both automated design and reliable electromagnetic analysis without requiring manual intervention or sacrificing design efficiency.
2Measurement precision
If visual checks by skilled designers are performed, then electromagnetic interaction analysis accuracy is improved, but design time and human dependency increase
Solution Approach 1:
The patent implements a self-service electromagnetic analysis capability within the CAD system that automatically performs electromagnetic field calculations and interference detection without requiring skilled designers to perform manual visual checks. The system uses automated algorithms to analyze electromagnetic interactions, providing accurate results while eliminating the time consumption and human dependency associated with manual inspection methods.
3Productivity
If component spacing is reduced to increase circuit density, then productivity is improved, but electromagnetic interference between components increases
Solution Approach 1:
The patent implements a feedback mechanism that continuously monitors electromagnetic interference levels as components are placed and spaced during the design process. When the system detects that reduced component spacing may cause harmful electromagnetic interference, it provides feedback to the designer through warnings or automated adjustments, allowing high circuit density to be achieved while maintaining acceptable electromagnetic compatibility through iterative optimization.
Data Source
AI summary
The design system, which is equipped with capability to analyze circuit board design data, comprises a storing section for recording design data, including structure data, circuit data, and element data; a selection section for selecting a pair of circuit elements subject to interference analysis among circuit elements placed on a circuit board, represented by the structure data; a substitution section for acquiring element data concerning circuit elements selected by the selection section from the design data and, based on element data, generating equivalent circuit data representing electromagnetic coupling within the pair of circuit elements with the help of an equivalent circuit; and an analysis section for calculating an amount of interference within the pair of circuit elements by analyzing data produced by combining the equivalent circuit data with the circuit data.