Resistor Value Extraction Circuit Using Polarity Segmentation
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Solution Overview
Problem
Existing technologies fail to effectively separate and extract resistance values of various components in complex systems, such as ultra-large-scale integrated circuits or motor systems, where resistors connected in series or parallel cannot be distinguished by voltage polarity changes, preventing precise measurement and monitoring.
Innovation Solution
A circuit and method utilizing a working voltage node resistor, common ground voltage node resistor, reference node resistor, interconnect parasitic resistors, and diodes to apply different voltage polarities for voltage and current detection, allowing for the separation and extraction of resistance values by analyzing IV characteristics across node combinations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional resistance measurement methods are used on complex resistance networks, then equivalent resistance can be measured, but individual resistors cannot be separated and extracted
Solution Approach 1:
The patent divides the complex resistance network into multiple measurement segments by introducing multiple test ports and applying different voltage polarity combinations. Each measurement segment provides information about specific resistor subsets, allowing individual resistor values to be extracted through systematic segmentation of the measurement process.
Solution Approach 2:
The patent changes the measurement parameters by applying different voltage polarity combinations (positive, negative, and alternating polarities) across multiple test ports. This parameter variation enables the extraction of different resistance combinations, which can then be mathematically solved to obtain individual resistor values that would otherwise be indistinguishable.
2Adaptability or versatility
If voltage polarity is changed in series or parallel resistor circuits, then measurement signals are obtained, but resistors still cannot be distinguished
Solution Approach 1:
The patent adds another dimension to the measurement by introducing multiple test ports (beyond the conventional two-end measurement) and considering multiple voltage polarity combinations simultaneously. This dimensional expansion creates additional measurement equations that enable the differentiation and extraction of individual resistor values from the complex network.
3Quantity of substance
If multiple measurement methods are applied to complex resistance networks, then more data is collected, but individual resistors remain indistinguishable
Solution Approach 1:
The patent employs a systematic feedback approach where measurement results from different voltage polarity combinations and test port configurations are fed back into a mathematical model. This feedback loop allows for the iterative solution and extraction of individual resistor values, converting the previously indistinguishable measurement data into precise component-level information.
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
Enables precise separation and extraction of resistors in complex systems, allowing for accurate monitoring and prediction of component life through resistance value analysis, overcoming the limitations of existing technologies.
Implementation Method 1
applying different voltage polarities to the node combination for voltage and current characteristic detection, and acquiring a series resistance value between two ends of the node combination under each voltage polarity combination
Data Source
AI summary
A circuit for acquiring a resistance value of a resistor includes: a working voltage node resistor Rb, a common ground voltage node resistor Rc, a reference node resistor Ra, a first interconnect parasitic resistor Rwire1, a second interconnect parasitic resistor Rwire2, an encapsulation network resistor Rnet, a first diode Dio_VDD, a Dio_Vss, and a Dio_die, wherein the working voltage node resistor Rb is respectively connected to one end of the Rwire1 and one end of the encapsulation network resistor Rnet. The other end of the Rwire1 is connected to a negative electrode of the Dio_VDD, and a positive electrode of the Dio_VDD is respectively connected to the Ra and a negative electrode of the Dio_Vss. A positive electrode of the Dio_VSS is respectively connected to the Rc and a negative electrode of the Dio_die via the Rwire2. A positive electrode of the Dio_die is connected to the other end of the Rnet.