Patent ID: 7884500
Filing Date: 2011-02-08
Classification: H01L,H02J,H02M,Y02E

Abstract:
1. A system for converting electrical power, the system comprising: two or more stages of electrical power wherein each stage is comprised of: a plurality of pulse amplitude modulated current converters (“converters”), wherein each of the converters receives direct electrical current from a respective direct electrical current source and provides pulse amplitude modulated current pulses at an output terminal of the converter and further wherein the output terminal of each converter is electrically connected in parallel with the output terminals of all of the other converters in the stage and further wherein the current pulses of at least two converters are out of phase with respect to each other, thereby summing the current pulses of all of the converters such that a signal modulated onto the pulse output of the converters is demodulated; wherein the two or more stages are electrically connected in series.