Patent ID: 6075716
Filing Date: 2000-06-13
Classification: H02M,Y02B

Abstract:
For use with a three-phase split boost converter having a primary stage with a primary rectifier and first and second primary boost switches coupled between an input and first and second outputs of said three-phase split boost converter, an auxiliary stage interposed between said input and said first and second outputs and comprising:first, second and third auxiliary boost inductors coupled to corresponding phases of said input; andan auxiliary boost network interposed between said first, second and third auxiliary boost inductors and said first and second outputs and including:an auxiliary three phase full-wave rectifier,first and second auxiliary boost diodes, andfirst and second auxiliary boost switches, coupled between said auxiliary three phase full-wave rectifier and said first and second auxiliary boost diodes, that cooperate to conduct currents through said first, second and third auxiliary boost inductors to reduce input current total harmonic distortion (THD) at said input of said three-phase split boost converter.