US 7,884,500 B2 · High voltage array converter

Abstract

A direct current to pulse amplitude modulated (“PAM”) current converter, denominated a “PAMCC”, is connected to an individual source of direct current. The PAMCC receives direct current and provides pulse amplitude modulated current at its output. An array of PAMCCs constructed in accordance with the present invention form a distributed multiphase inverter whose combined output is the demodulated sum of the current pulse amplitude modulated by each PAMCC. The array is configured as a series of stages, wherein the power sources within each stage are in parallel. The series of stages provides for a high voltage AC or DC output. In some embodiments a weak power source is compensated for by adjusting the voltage or the current of the weak power source.

Claims7

Dependent claims

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.

Dependencies are inferred from the claim text.

High voltage array converter

Life of this patent

High voltage array converter

Life of this patent

Abstract

Claims7