Patent ID: 7581119
Filing Date: 2009-08-25
Classification: G06F

Abstract:
1. An electrical device, comprising: a peripheral bus interface coupled to a bus connector, the bus connector providing a power line, a ground line and a plurality of digital data lines to said peripheral bus interface; an available power detector operatively connected to said peripheral bus interface, wherein said available power detector operates to detect a level of available power from the power line by obtaining voltages on the plurality of digital data lines when a power source is operatively connected to said peripheral bus interface via the bus connector and converting the obtained voltages to at least one digital value indicative of the level of available power; a battery; a battery charging circuit; power-consuming circuitry; and a power manager operatively connected to said available power detector and said power-consuming circuitry, wherein said power manager operates to manage power utilization by at least a portion of said power-consuming circuitry based on the level of available power.