Two-Stage Power Architecture for Voltage Regulator Application based on Coupled Magnetic Structure

Due to the quick development of microprocessors, Voltage Regulators face serious challenges when it comes to accomplish voltage and current requirements of new microprocessors. Two-Stage Voltage Regulators for powering laptop and desktop microprocessors have proved that can be useful when dealing with improvements in efficiency. In this paper, a topology suitable to be used in a two-stage power architecture is proposed. Due to its high efficiency and fast dynamic response in open loop operation it could be used as a pre-regulator to step down the bus voltage. This topology could also be used as a post-regulator in applications that could take advantage of its low output capacitance.