Two stage three-phase separating voltage converter


Application Number: 00104960
Application Date: 2000.04.05
Publication Number: 1270438
Publication Date: 2000.10.18
Priority Information: 1999/4/6 US 09/286,856
International: H02M1/12;H02M3/155
Applicant(s) Name: Lucent Technologies Inc.
Address:
Inventor(s) Name: Jin He;M. E. Jacquebs
Patent Agency Code: 11038
Patent Agent: jiang shixun
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 the three-phase split boost converter, an auxiliary stage interposed between the input and the first and second outputs, a method of reducing input current total harmonic distortion(THD) and a converter incorporating the auxiliary stage or the method. In one embodiment, the auxiliary stage includes: (1) first, second and third auxiliary boost inductors coupled to corresponding phases of the input and (2) an auxiliary boost network including (2a) an auxiliary three phase full-wave rectifier, (2b) first and second auxiliary boost diodes, and (2c) first and second auxiliary boost switches.