Power management in a system having a processor and a voltage converter that provides a power voltage to the processor

摘要

A system has a processor and a voltage converter to provide a power voltage to the processor. The processor is able to transition among different power modes, wherein the voltage converter receives indications to specify different voltage levels of the power voltage for at least two of the power modes. A controller detects a transition of the processor to a lower one of the power modes, and in response to detecting transition of the processor to the lower one of the power modes, disables at least one portion of the voltage converter.