Current Sensor Assembly With Parallel Shunt for Extended Range
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Solution Overview
Problem
Integrated trace type current sensor assemblies have limited current measurement range, making them less suitable for high-current applications, while external trace type assemblies, though capable of measuring larger currents, are more difficult to install and require additional design and calibration.
Innovation Solution
Incorporating external resistive elements in parallel with integrated trace type current sensor assemblies to extend their measurement range, allowing for higher current measurements while maintaining ease of installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If external trace type current sensor assembly is used, then current measurement range is extended, but device complexity and installation difficulty increase
Solution Approach 1:
The patent combines the integrated trace type current sensor assembly with an external resistive element to achieve the extended measurement range capability of external trace type assemblies while maintaining the integration benefits. The resistive element is connected in parallel with the integrated electrical conductor, creating a composite sensing system that leverages both approaches.
Solution Approach 2:
The external resistive element acts as an intermediary component that enables the integrated trace type sensor to measure higher currents. By introducing this intermediate element in parallel, the system can handle current levels beyond the native capability of the integrated sensor alone, without requiring a complete switch to external trace type assembly.
2Measurement precision
If external trace type current sensor assembly is used, then current measurement range is extended, but calibration requirements increase
Solution Approach 1:
The patent merges the integrated trace type current sensor assembly with an external resistive element to achieve extended measurement range while simplifying the overall calibration process. The known resistance value of the external element works in conjunction with the integrated sensor to provide extended range capability.
Solution Approach 2:
The patent utilizes the known resistance parameter of the external resistive element to extend the measurement range. By changing the electrical parameters (resistance values) of the circuit configuration, the system can measure currents beyond the original range of the integrated sensor without requiring complex recalibration procedures.
3Ease of operation
If integrated trace type current sensor assembly is used, then ease of installation is maintained, but current measurement range is limited
Solution Approach 1:
The patent combines the integrated trace type current sensor assembly with an external resistive element to achieve the extended measurement range capability of external trace type assemblies while maintaining the integration benefits. The resistive element is connected in parallel with the integrated electrical conductor, creating a composite sensing system that leverages both approaches.
4Ease of manufacture
If integrated trace type current sensor assembly is used, then installation simplicity is maintained, but measurement accuracy at high current decreases
Solution Approach 1:
The external resistive element acts as an intermediary component that enables the integrated trace type sensor to measure higher currents. By introducing this intermediate element in parallel, the system can handle current levels beyond the native capability of the integrated sensor alone, without requiring a complete switch to external trace type assembly.
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
The solution enables integrated trace type current sensor assemblies to measure a broader range of currents comparable to external assemblies, improving installation ease and accuracy by mitigating resistance variations.
Implementation Method 1
an external resistive element connected in parallel to the integrated electrical conductor. A second current may flow through the external resistive element
Data Source
AI summary
A current sensing device may include an integrated trace type current sensor assembly. The current sensor assembly may include a chip body, an integrated electrical conductor, and a current sensor. The current sensor measures an amount of first current that flows through the integrated electrical conductor. The current sensing device may also include an external resistive element connected in parallel to the integrated electrical conductor. A second current may flow through the external resistive element. The amount of the first current measured by the current sensor is indicative of a total current that is a sum of the first current and the second current. The total current may be determined based on the amount of the first current measured by the current sensor, based on a first resistance value of the integrated electrical conductor, and based on a second resistance value of the external resistive element.