Multi-Sampling Power Measurement Assembly for Dynamic Current Ranges
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Solution Overview
Problem
Traditional current measurement methods are inadequate for accurately calculating the power consumption of dynamic random memories like SDRAM, particularly due to their large current dynamic range, and fail to effectively measure both static and dynamic power consumption sources.
Innovation Solution
A power consumption measurement assembly comprising at least two sampling circuitries, a gating circuitry, and an amplifying circuitry, connected in series to the chip, which allows for accurate measurement of power consumption by selecting appropriate sampling resistors and amplification based on current range, enabling the calculation of both static and dynamic power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional current measurement methods are used, then the measurement process is simple, but the measurement precision is insufficient for chips with large current dynamic range
Solution Approach 1:
The measurement assembly is divided into multiple sampling circuitries (first, second, third sampling circuitries) with different sampling resistors, allowing each segment to handle specific current ranges. This segmentation enables precise measurement across the full current dynamic range by selecting the appropriate sampling circuitry for the measured chip's current characteristics.
Solution Approach 2:
The patent implements dynamic switching between different sampling circuitries based on the measured chip's current range. The switching circuitry dynamically connects the appropriate sampling circuitry to the measurement circuitry, allowing the system to adapt its configuration to match the measurement requirements, thereby maintaining high precision across varying current conditions.
2Adaptability or versatility
If multiple sampling circuitries are used to cover wide current range, then the measurement adaptability is improved, but the device complexity increases
Solution Approach 1:
The measurement assembly is designed with multiple sampling circuitries that can each handle different current ranges, making the system universally applicable to various chip types (SDRAM, CPU, calorimeter chips) with different power consumption characteristics. The switching mechanism enables a single measurement assembly to adapt to multiple measurement scenarios without requiring separate dedicated circuits for each chip type.
Solution Approach 2:
The dynamic switching capability allows the measurement assembly to adapt its configuration in real-time based on the measured chip's current range, providing versatility across different chip types and measurement conditions while maintaining a unified hardware architecture that reduces overall system complexity.
3Measurement precision
If sampling resistors with different resistance values are used, then the measurement precision for different current ranges is improved, but the manufacturing complexity increases
Solution Approach 1:
The use of multiple sampling resistors with different resistance values is segmented into distinct sampling circuitries, where each resistor is optimized for specific current ranges. This segmentation allows for precise measurement in each range while organizing the manufacturing process into modular units, making the assembly process more manageable despite the increased number of components.
Solution Approach 2:
The dynamic switching between different sampling resistors allows the system to use only the appropriate resistor for the current measurement range, optimizing measurement precision. The switching mechanism automates the selection process, reducing the manual configuration complexity during manufacturing and 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 provides a precise and adaptable method for measuring power consumption across a wide range, reducing measurement errors and energy consumption, and is suitable for various types of chips, including SDRAM, CPU, and calorimeter chips.
Implementation Method 1
The amplifying circuitry is configured to acquire and amplify a voltage signal across the gated sampling circuitry
Data Source
AI summary
A power consumption measurement assembly includes: at least two sampling modules respectively connected to a circuit to be measured in series; a gating module configured to gate one of the at least two sampling modules; an amplifying module configured to acquire and amplify a voltage signal across the gated sampling module; and a processing module connected to the gating module and the amplifying module and configured to: control and adjust the gated sampling module and an amplification of the amplifying module, calculate a power consumption value based on the amplified voltage signal and transmit the power consumption value.