Dynamic Supply Voltage Control for Load Jitter Handling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing power supply systems face challenges in maintaining stable supply voltage during workload changes, particularly when the load increases, leading to voltage jitter and reduced robustness, especially when using Adaptive Voltage and Frequency Scaling (AVFS) technology, which has limited jitter handling capabilities.
Innovation Solution
A power supply adjusting system comprising a power supply, a power storage circuit, and a control circuit that dynamically adjusts the supply voltage by decreasing it when the load increases and increasing it when the load decreases, based on workload change conditions detected through load working frequency ranges, ensuring stability and extending the jitter range of load voltage handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the supply voltage is kept stable at standard level, then the chip can work normally, but the power supply system cannot handle large jitter range when workload changes
Solution Approach 1:
The patent implements dynamic supply voltage adjustment by detecting workload changes and automatically modifying the supply voltage level. The power supply adjusting system changes the supply voltage from a fixed standard level to a dynamic value that adapts to workload variations, thereby extending the jitter range handling capability while ensuring chip normal operation through controlled voltage adjustment.
2Power
If the supply voltage is decreased when load increases, then the power storage circuit can supply power to the load, but the supply voltage stability deteriorates
Solution Approach 1:
The patent employs feedback mechanisms where the control circuit continuously monitors workload changes and detects load working frequency. Based on this feedback information, the system adjusts the supply voltage appropriately - decreasing it when load increases to enable power storage circuit supplementation, while maintaining overall stability through controlled adjustment rather than uncontrolled variation.
Solution Approach 2:
The power storage circuit is pre-charged to a standard voltage level before workload increases occur. When load increases are detected, the pre-charged power storage circuit can immediately supply power without waiting for voltage stabilization, thus maintaining power supply capability while the control system simultaneously adjusts the supply voltage to appropriate levels.
3Use of energy by moving object
If AVFS technology is used to adjust supply voltage and frequency, then energy efficiency is improved, but the jitter handling capability is limited
Solution Approach 1:
The patent combines AVFS technology with a power storage circuit and workload detection mechanism to create a hybrid system. This merged system retains the energy efficiency benefits of AVFS while adding the jitter handling capability of the power storage circuit, which can quickly supplement power during sudden load increases that AVFS alone cannot handle effectively.
Data Source
AI summary
A power supply adjusting system, method and apparatus, a chip, and an electronic device. The system includes: a power supply, a power storage circuit and a control circuit the control circuit is connected to the power supply and the load when in use; and the control circuit is configured to obtain a workload change condition of the load and to control, in a case where the workload change condition is that the load increases, the power supply to decrease the supply voltage so that the power storage circuit outputs power to supply power to the load.