Adaptive Thermal Slope Control

摘要

Methods and apparatus are provided for adaptive thermal slope control for dynamic thermal management. In one novel aspect, the device monitors and obtains sampling temperatures, calculates a thermal-slope index, determines whether the calculated thermal-slope index is greater than a predefined slope threshold, adjusts a power budget based on a thermal-slope algorithm, and applies the dynamic thermal management (DTM) adaptively based on the adjusted power budget. In one embodiment, fixed slope algorithm is used. The power budget is adjusted such that an adjusted slope of temperatures stays at a constant. In another embodiment, the time prediction algorithm is used. The power budget is adjusted such that a predicted time to reach a predefined thermal threshold stays a constant. In one embodiment, the time-prediction algorithm is a time-to-target-point (T2TP) algorithm. The T2TP is obtained using a linear equation or a LOG equation.

主权项

1. A method, comprising:
monitoring and obtaining sampling temperatures by an apparatus, wherein the sampling temperatures include a current temperature and a previous temperature; calculating a thermal-slope index based on the sampling temperatures, wherein the thermal-slope index is slope-related value based on the current temperature and the previous temperature; determining whether the calculated thermal-slope index is greater than a predefined slope threshold; and adjusting a power budget based on a thermal-slope algorithm; and applying a dynamic thermal management (DTM) adaptively based on the adjusted power budget.