| 摘要 |
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, method of reducing input current total harmonic distortion (THD) at the input of the three-phase split boost converter, and a three-phase split boost converter employing the auxiliary stage and method. In one embodiment, the auxiliary stage includes first, second and third auxiliary boost inductors coupled to corresponding phases of the input. The auxiliary stage also includes an auxiliary boost switch, interposed between the first, second and third auxiliary boost inductors and the first and second outputs of the split boost, that conducts to induce corresponding phase currents through the first, second and third auxiliary boost inductors thereby reducing input current THD at the input of the three-phase split boost converter.
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