Patent ID: 7463498

Claim:
A multiphase DC-to-DC power converter, comprising: at least two sets of input switches, each set of input switches generating a primary current waveform from an input power source, each primary current waveform having a time varying component that is displaced in phase from a time varying component of each other primary current waveform; an isolation transformer for each set of input switches, each isolation transformer connecting to one set of input switches and transforming the respective primary current waveform into a secondary current waveform; a rectification circuit for each isolation transformer, each rectification circuit connecting to one isolation transformer and rectifying the respective secondary current waveform; a common filter providing an output voltage node; and at least one output inductor for each rectification circuit, each output inductor connecting to one rectification circuit and coupling the rectified secondary current waveform to the common filter to drive an output voltage, at least two of the output inductors being magnetically coupled such that current through one magnetically coupled output inductor induces current through all other magnetically coupled output inductors.