Hardware Current Detector for Dynamic Power Efficiency
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Solution Overview
Problem
Conventional power management in electronic systems is limited by software-controlled power conservation modes, leading to inefficiencies and errors in responding to actual operating states, as system power utilization is estimated rather than dynamically adjusted.
Innovation Solution
A system comprising a current detector and an efficiency adjustment module that generates frequency and voltage control signals based on current variations, using tables to adjust system efficiency by controlling clock and voltage generators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If software-controlled power conservation modes are used, then system power consumption can be reduced, but the response time to actual operating states is delayed and control accuracy is limited
Solution Approach 1:
The patent replaces software-based power management with a hardware-level circuit system that directly detects current consumption and automatically adjusts operating parameters. The circuit includes current detection modules, control logic, and frequency/voltage adjustment components that operate independently of software, enabling real-time response to changing power demands without the delays inherent in software-based ACPI implementations.
Solution Approach 2:
The power management system operates autonomously by directly monitoring its own current consumption and automatically adjusting its operating frequency and voltage without requiring external software intervention. The circuit self-regulates based on real-time current detection, eliminating the need for software estimation and manual mode switching, thereby achieving both rapid response and accurate control.
2Productivity
If software estimation of power utilization is used, then power conservation modes can be implemented, but errors occur due to estimation inaccuracies
Solution Approach 1:
The patent implements a direct feedback mechanism where current consumption is continuously measured and fed back to the control circuit, which then adjusts operating parameters accordingly. This closed-loop system eliminates estimation errors by using actual measured current values rather than software predictions, ensuring accurate real-time power management decisions based on true system state.
Solution Approach 2:
The system replaces software estimation algorithms with hardware-level current detection circuits that directly measure actual power consumption. This substitution of measurement methodology eliminates the inaccuracies inherent in software estimation by using precise, real-time electrical measurements at the circuit level, thereby improving both measurement precision and power management effectiveness.
3Loss of energy
If conventional power conservation modes are used, then system efficiency can be improved, but the system cannot dynamically respond to varying current consumption
Solution Approach 1:
The patent implements dynamic power management by continuously adjusting operating frequency and voltage based on real-time current consumption patterns. The control circuit monitors current variations and automatically modulates system parameters to match actual demand, enabling the system to adapt dynamically to changing workloads rather than relying on static pre-defined power conservation modes.
Solution Approach 2:
The system dynamically changes operating parameters (frequency and voltage) based on measured current consumption. The control circuit modifies these parameters in real-time according to actual power demand, allowing the system to optimize efficiency at any given moment rather than being constrained by fixed power conservation modes, thereby achieving both efficiency improvement and dynamic adaptability.
Data Source
AI summary
Apparatus and methods of adjusting system efficiency for a current-consuming system are disclosed. In the disclosed apparatus, a system current detector receives a system current from the current-consuming system and calculates a system current variation accordingly. A system efficiency adjustment module is coupled to the system current detector to receive the system current variation and output a frequency control signal and a voltage control signal accordingly.