Patent ID: 8954767
Filing Date: 2015-02-10
Classification: G05F,G06F,H02M

Abstract:
1. A power regulator configured to provide variable current capacity for providing power (VDD) from a power supply to a load having variable demand, the power regulator arrangement comprising: a first voltage regulator including input for power from the power supply (Vin), a power-activation input, a power output supplying power to the load, and a power output level status; a second voltage regulator including a power input (Vin) coupled to the power supply, a power-activation input, a power output supplying power to the load, and a power output level status; and a power management control unit (PMCU) configured to, in response to the current demand of the load, send control signals to enable or disable one of more of the voltage regulators; wherein the load consists of a microprocessor; and wherein a load profile of the microprocessor is known and has a first operating state and additional operating states, and the first voltage regulator and second voltage regulator are selected to operate at a maximum efficiency at the first operating state and additional operating states of the microprocessor.