Patent ID: 7584067

Claim:
An apparatus for measuring average power consumption of a computer system, comprising: a current to voltage converter configured for receiving an operating current of the computer system and transforming the operating current into a voltage signal; an analog-digital converter connected to the current to voltage converter for receiving the voltage signal, and converting the voltage signal into a digital signal indicating a value of the operating current; a micro controller unit connected to the analog-digital converter capable of receiving the digital signal, and calculating a value of the average power consumption of the computer system according to the digital signals received during a determined period of time, the value of the average power consumption being converted into a display-driving signal; and a display module connected to the micro controller unit capable of receiving the display-driving signal, and displaying the value of the average power consumption, wherein the value of the voltage signal equals the value of the operating current, and wherein the micro controller unit is programmed to multiply an operating voltage of the computer system by the digital signal from the analog-digital converter to get an instantaneous power consumption of the computer system, the micro controller unit averages a plurality of power consumption readings of the computer system in a determined period of time to calculate the value of the average power consumption of the computer system.