Method and apparatus for electrical bus centering

Details Method and apparatus for electrical bus centering Method and apparatus for electrical bus centering

2009-05-29

2011-11-01

Laxton, Gary L (Department: 2838)

Electric power conversion systems

Current conversion

Using semiconductor-type converter

C363S064000

Reexamination Certificate

active

08050069

ABSTRACT:
A bus centering device for use in an aircraft electrical power distribution system that includes a positive bus rail, a negative bus rail, and a ground is described. The device includes a central node, a first and second switching component configured to couple the central node to the positive rail and the negative rail for a first and second predetermined duty cycle, respectively. The device includes an inductive component coupled between the central node and ground, and is configured to maintain a voltage at the central node substantially equal to ground, wherein a voltage between the positive rail and the central node is maintained substantially equal to a voltage between the negative rail and the central node. The device includes a first and second current limiting device configured to maintain a continuity of current from the inductive component when the first and second switching components are turned off.

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