High Efficiency, High Density, PolyPhase Converters for High Current Applications

High Efficiency, High Density, PolyPhase Converters for High Current Applications

This application note analyzes the performance of PolyPhase™ converters and provides guidelines for selecting the phase number and designing a PolyPhase™ converter using the LTC1629.

This publication addresses the following questions. How much do I gain by using a PolyPhase™ architecture? How do I design a PolyPhase™ converter? How many phases do I need for my application? The design example of an LTC1629-based, 6-phase 90A power converter is presented. The mathematical equations and graphical curves for calculating the ripple currents are included.

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