Patent ID: 6674325
Filing Date: 2004-01-06
Classification: H02J,H02M

Abstract:
A balanced current converter with multiple pulse width modulated channels, the balanced current converter comprising:a converter output providing a power output and an average output voltage signal; an error amplifier inputting a reference voltage signal and the average output voltage signal, said error amplifier comparing the reference voltage signal and the average output voltage signal to generate an error signal; a main converter channel coupled within the converter output and the error amplifier, the main converter channel outputting a main channel current signal and a main channel power output according to the error signal; and at least one parallel converter channel coupled within the converter output and the error amplifier, wherein the parallel converter channel further connects with the main converter channel to obtain the main channel current signal, the parallel converter channel compares the main channel current signal and a respective parallel channel current signal to generate a first deviation signal, the parallel converter channel compares the first deviation signal and the error signal to generate a second deviation signal, and the parallel converter channel provides a respective parallel channel power output and measures the respective parallel channel power output to feedback the respective parallel channel current signal, and wherein the power output includes the main channel power output and the respective parallel channel power output.