DVFS Temperature Feedback Control for Chip Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing DVFS technologies face challenges in maintaining chip performance and controlling power consumption while adapting to temperature changes, as current solutions either degrade performance or increase power consumption.
Innovation Solution
A temperature feedback control system integrated into the chip, comprising a DVFS circuit, a temperature data acquiring module, and processors that adjust working frequency and voltage based on real-time temperature data using a temperature feedback algorithm.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the working frequency is reduced in low voltage and high voltage working modes to overcome temperature change problems, then the chip can work normally under temperature variations, but the overall performance of the chip is degraded
Solution Approach 1:
The patent implements a temperature feedback control system where the microprocessor continuously monitors chip temperature and dynamically adjusts working frequency and voltage based on real-time temperature data. This feedback mechanism allows the system to maintain stable operation across temperature variations without requiring a permanent frequency reduction, thus preserving overall chip performance while ensuring reliability.
Solution Approach 2:
The system transitions from static frequency/voltage settings to dynamic adjustment based on operating conditions. The microprocessor modifies working parameters in real-time according to temperature feedback, enabling the chip to adapt its performance characteristics to match actual thermal conditions rather than operating at a fixed reduced frequency.
2Reliability
If the working voltage is increased in low voltage working mode to ensure normal chip operation, then the chip can work normally at unchanged frequency, but the power consumption increases
Solution Approach 1:
The patent dynamically changes working voltage and frequency parameters based on temperature conditions. Instead of maintaining a fixed high voltage to ensure stability, the system adjusts voltage levels according to real-time temperature feedback, using higher voltage only when thermally necessary and lower voltage when cooling is sufficient, thereby reducing overall power consumption while maintaining reliability.
Solution Approach 2:
The temperature monitoring and parameter adjustment occurs in periodic cycles rather than continuously, with the microprocessor sampling temperature data at intervals and making appropriate adjustments. This periodic control reduces the energy overhead of constant monitoring while ensuring timely responses to thermal changes.
Data Source
AI summary
The present invention applies to the field of integrated-circuit control, and provides a temperature feedback control system and method for DVFS (Dynamic Voltage Frequency Scaling). In the present invention, a main processor sends a control data packet to a microprocessor according to a received temperature feedback trigger signal, and the microprocessor immediately triggers working of a temperature data acquiring module, and after the temperature data acquiring module acquires real-time temperature data of a chip, executes a temperature feedback algorithm on the real-time temperature data according to the control data packet to output a corresponding performance control parameter, so as to enable a DVFS circuit to adjust a working frequency and a working voltage of the chip, and further enable the chip to implement automatic frequency and voltage adjusting at a low voltage and a low temperature and at a high voltage and a high temperature.