Hard Clipper Model for Non-Linear Device Performance Testing
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Solution Overview
Problem
Existing performance testing methods for electronic components with non-linear characteristics face challenges in comparability due to varying measurement conditions, making it difficult to determine and compare their performance effectively.
Innovation Solution
A performance testing method using a hard clipper model, which is an idealized representation of the device under test, generates a test signal and compares the output signal to the model output signal to determine performance, providing a common and reproducible benchmark for comparison.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional performance measurement methods are used for devices with non-linear characteristics, then measurement can be performed, but comparability of results deteriorates due to varying measurement conditions
Solution Approach 1:
The patent creates a virtual copy (hard clipper model) of the device under test that exhibits ideal linear characteristics. This model copy receives the same test signals as the actual device, and its output is compared against the actual device output to determine performance. This copying approach enables consistent, reproducible measurements that are comparable across different measurement conditions.
Solution Approach 2:
The patent transforms the measurement approach by changing the reference parameter from another physical device to a virtual model with controlled characteristics. By using a hard clipper model that exhibits ideal linear behavior regardless of actual measurement conditions, the system achieves parameter consistency that enables direct comparison of device performance across varying conditions.
2Measurement precision
If competitor data sheets are used for comparison, then relative comparison is possible, but absolute performance benchmarking deteriorates due to unclear test conditions
Solution Approach 1:
Instead of relying on competitor data sheets with unknown test conditions, the patent creates a virtual model copy that embodies ideal performance characteristics. This model serves as an absolute reference that eliminates dependency on external competitor data with uncertain measurement conditions, providing clear and actionable performance benchmarks.
Solution Approach 2:
The hard clipper model acts as an intermediary between the test signal and performance evaluation. Rather than directly comparing devices or relying on external data sheets, the model serves as a mediating reference that translates test signals into expected ideal outputs, enabling objective performance assessment without loss of test condition information.
3Reliability
If devices with non-linear characteristics are measured directly, then actual device behavior is captured, but meaningful comparison deteriorates due to inherent non-linear variations
Solution Approach 1:
The patent creates a virtual model that copies the essential functional characteristics of the device under test but eliminates non-linear variations. This model copy receives identical test signals and produces idealized outputs that serve as a reliable reference, enabling meaningful comparison while accounting for the actual device's non-linear behavior through deviation analysis.
Solution Approach 2:
Instead of attempting to measure and compare the non-linear device characteristics directly, the patent inverts the approach by creating a virtual model with ideal linear characteristics and comparing the actual device output against this inverted reference. This inversion transforms the measurement problem from characterizing non-linear variations to measuring deviations from ideal behavior.
Data Source
AI summary
A performance testing method for determining a performance of a device under test having non-linear characteristics is disclosed. The performance testing method comprises the following steps:generating a hard clipper model of said device under test;generating a test signal having predefined properties;forwarding said test signal to the device under test, wherein the device under test generates an output signal based on said test signal;feeding said hard clipper model with said test signal, thereby generating a model output signal; andcomparing said output signal to said model output signal in order to determine the performance of the device under test.Moreover, a measurement system for determining a performance of a device under test having non-linear characteristics is disclosed.