Internal Power Analyzer for Dynamic Storage Throttling
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Solution Overview
Problem
Existing power management systems for data storage devices rely on external measurement tools, making dynamic power throttling during runtime difficult, especially for devices located remotely, and pre-calculated power values are inadequate due to varying internal impedances among different devices.
Innovation Solution
Incorporating internal power analyzer circuitry within data storage devices that can measure and store power values using protocols like I2C, SPI, or UART, allowing for dynamic runtime power throttling without external tools and adapting to varying power demands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If external measurement tools are used to measure power consumption, then power measurement data can be obtained, but dynamic power throttling during runtime becomes difficult and devices located remotely cannot be monitored
Solution Approach 1:
The data storage device performs self-measurement of power consumption using internal circuitry (current sensor, voltage sensor, and processor) rather than relying on external measurement tools. The processor calculates power consumption by multiplying current and voltage measurements, enabling the device to autonomously monitor its own power usage and implement dynamic power throttling during runtime based on real-time conditions
2Ease of manufacture
If pre-calculated power values are used for power management, then power management can be implemented, but it becomes inadequate due to varying internal impedances among different devices
Solution Approach 1:
The system transitions from static pre-calculated power values to dynamic real-time power measurement and adjustment. The processor continuously monitors current and voltage, calculates actual power consumption, and dynamically adjusts power management strategies based on real-time operating conditions and device-specific characteristics, making the system adaptable to varying power demands across different devices
Solution Approach 2:
The system implements feedback by continuously measuring actual power consumption through internal sensors and using this information to adjust power management decisions. The processor receives real-time current and voltage data, calculates power consumption, and uses this feedback to optimize power allocation and throttling strategies, ensuring adaptability to each device's specific impedance characteristics
Data Source
AI summary
A data storage device includes a power input port, a nonvolatile memory module, a controller for the nonvolatile memory module, and a power analyzer electrically coupled to the power input port. The power analyzer is configured to receive input power from the power input port, determine power data associated with the data storage device based on the input power, and store the power data in a memory of the power analyzer.