Phase selection circuit for three phase power converter and meth

Details Phase selection circuit for three phase power converter and meth Phase selection circuit for three phase power converter and meth

1998-07-17

2000-04-04

Han, Jessica

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

363 37, 363 44, 323217, H02M 112, G05F 100

Patent

active

060469153

ABSTRACT:
An active circuit for delivering three phase AC input power received from a three phase rectifier to a boost converter and a method of operating the same. In one embodiment, the active circuit includes a phase selection switching circuit, coupled to the rectifier, that selects an inner phase of the three phase AC input power. The active circuit also includes a switching network, coupled to the phase selection switching circuit and the rectifier, that controls a current waveshape of the inner phase and a current waveshape of at least one other phase, thereby to reduce harmonics associated with three phase AC input current.

REFERENCES:
patent: 5576943 (1996-11-01), Keir
patent: 5764037 (1998-06-01), Jacobs et al.
patent: 5784269 (1998-07-01), Jacobs et al.
Universal--Input, High-Power-Factor, Boost Doubler Rectifiers; pp. 459-465; Dragan Maksimovic and Robert Erickson; Power Electronics Group; Department of Electrical and Computer Engineering, University of Colorado, Boulder, CO 80309-0425.

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