Patent ID: 7705488

Claim:
An apparatus for redundant power supplies, the apparatus comprising: a first high voltage connector and a second high voltage connector; a regulator module that receives a first power waveform from a first power supply module through the first high voltage connector and receives a second power waveform from a second power supply module through the second high voltage connector and provides power to a low voltage, regulated output bus, the first and second power waveforms comprising high voltage, high frequency, chopped power waveforms, the high voltage, high frequency, chopped waveforms comprising a pulse width modulated power signal generated by switching a power source external to the regulator module, the regulator module comprising an interleaved power supply stage that receives the first and second power waveforms as pulse-width modulated power signals and converts the first and second power waveforms to the low voltage, regulated voltage on the output bus; and a feedback module that receives a voltage feedback signal from the output bus, adjusts a duty cycle based on the feedback signal, and transmits a drive signal based on the duty cycle to each of the first and second power supply modules, the first and second power supply modules using the drive signals to generate the first and second power waveforms.