Maintaining the performance of an integrated circuit

摘要

A working power limit for the integrated circuit is calculated based on a performance factor of the circuit. A power management system varies the power of the integrated circuit based on the working power limit to maintain constant performance. The system may take the actual power of the circuit into account. The performance factor may be the maximum performance or the temperature. It may be based on the inherent characteristics of the circuit. manufacturing variations in the circuit, the operating conditions of the circuit or the maximum allowable power consumption of the circuit. It may be based on a manufacturing test parameter which may be the inherent base power, a leakage parameter or a temperature parameter. The power of the circuit may be adjusted to ensure consistent performance over a number of circuits of the same design.