Patent ID: 8661278
Filing Date: 2014-02-25
Classification: G06F,H02M,Y02B,Y02D

Abstract:
1. A system comprising: a printed circuit board comprising a main processor; a power supply coupled to the printed circuit board, the power supply configured to produce a main power output signal and an auxiliary power output signal, and the main power output signal selectively activated within the power supply based on signals from devices on the printed circuit board; and a power control circuit comprising a processor different than the main processor; wherein the system is configured to have: wherein a device to wake the system from the first powered-off state is powered from the auxiliary power rail, and any device to wake the system from the second powered-off state is not powered from the auxiliary power rail but is coupled to the auxiliary power output signal; and wherein the processor is configured to receive an indication of which powered-off state to implement by a communication over a bus triggered by a basic input output system program.