Patent ID: 7904260

Claim:
A method for classifying as to type electrical devices adapted to receive power from an output port of a respective power control circuit coupled to a battery, comprising: storing reference current responses of different types of electrical devices in a memory, wherein the reference current responses include reference in-rush currents as a function of time; calculating a first steady state current from the reference current responses; calculating a second steady state current from a measured real-time current response of a specific electrical device, wherein the measured real-time current response includes a real-time in-rush current; comparing, by a processor, the measured real-time current response of the specific electrical device to the reference current responses; classifying the specific electrical device as having a first classification type based on the current response comparison; comparing the first steady state current to the second steady state current of the specific electrical device; and classifying the specific electrical device as having a second classification type based on the steady state current comparison.