Detecting Asymmetry in Bidirectional Semiconductor Devices
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Solution Overview
Problem
Existing technologies lack a fast and effective method for detecting asymmetry in bidirectional semiconductor devices, which is crucial for ensuring safe and reliable operation in medical applications, particularly in electrophysiological circuits.
Innovation Solution
A system comprising a signal generator that passes signals with two different frequencies through a circuit containing a bidirectional semiconductor device, and a processor that identifies derived frequencies to detect asymmetry in the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional methods are used to detect asymmetry in bidirectional semiconductor devices, then the detection process is slow and complex, but the patent introduces a fast and effective method using frequency analysis
Solution Approach 1:
The patent replaces complex physical measurement systems with electrical frequency analysis. By injecting two different frequencies and detecting their difference frequency, the system substitutes elaborate asymmetry detection mechanisms with a streamlined electrical signal processing approach, achieving faster detection with reduced complexity
Solution Approach 2:
The patent changes the detection parameter from direct asymmetry measurement to frequency domain analysis. By transforming the problem into detecting frequency differences (difference frequency) rather than directly measuring asymmetry, the system achieves rapid detection through parameter transformation
2Reliability
If asymmetry in bidirectional semiconductor devices is not detected, then dangerous direct current voltages can be generated, but existing detection methods are not fast or effective enough
Solution Approach 1:
The patent introduces frequency signals as an intermediary to detect asymmetry. Instead of directly measuring asymmetry which is difficult, the system uses frequency difference detection as an intermediary measurement that indirectly reveals asymmetry, making the detection process both easier and more reliable
Solution Approach 2:
The system implements feedback by continuously monitoring the difference frequency and using this information to detect asymmetry conditions. The feedback mechanism allows for real-time detection and response to asymmetry, enhancing safety through continuous monitoring
3Object-affected harmful factors
If a bidirectional semiconductor device is asymmetric, then it can generate direct current voltages that are dangerous in medical applications, but detecting this asymmetry is challenging
Solution Approach 1:
The patent moves the detection from the time domain to the frequency domain. By analyzing signals in the frequency dimension rather than directly in the time domain, the system achieves precise asymmetry measurement through frequency difference detection, effectively adding a new dimension to the measurement process
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for the rapid detection of asymmetry in bidirectional semiconductor devices, preventing the generation of dangerous direct current voltages and ensuring the safety and reliability of medical devices.
Implementation Method 1
A system comprising a signal generator (50), configured to pass a generated signal, which has two different generated frequencies, through a circuit (34) including a bidirectional semiconductor device. A processor (38) is provided, configured to identify, while the generated signal is passed through the circuit (34), a derived frequency, which derives from the generated frequencies, on the circuit (34).
Data Source
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AI summary
A system includes a signal generator, configured to pass a generated signal, which has two different generated frequencies, through a circuit including a bidirectional semiconductor device. The system further includes a processor, configured to identify, while the generated signal is passed through the circuit, a derived frequency, which derives from the generated frequencies, on the circuit, and to generate, in response to identifying the derived frequency, an output indicating that a property of the bidirectional semiconductor device is asymmetric. Other embodiments are also described.