Electric power conversion systems – Current conversion – With means to connect the input to diverse power sources
Reexamination Certificate
2007-05-01
2010-12-28
Laxton, Gary L (Department: 2838)
Electric power conversion systems
Current conversion
With means to connect the input to diverse power sources
C363S101000, C363S089000, C307S075000
Reexamination Certificate
active
07859874
ABSTRACT:
An aircraft device power supply is capable of connecting to either an AC or a DC power bus provided on an aircraft. When connected to an aircraft's AC power bus, an AC power signal is EMI-filtered, stepped down in voltage to the same voltage as that of the DC power bus, and then rectified. When connected to an aircraft's DC power bus, a DC power signal is EMI-filtered before it is merged with the rectified AC power signal via an AC/DC switchover subcircuit. The output of the AC/DC switchover subcircuit is input to a power factor correction subcircuit which outputs a boosted DC voltage, regardless of which of the AC or DC aircraft power buses is connected to the power supply. A step down converter reduces the boosted DC voltage to a lower, system voltage which may then be further reduced or modified, as appropriate for device to be powered.
REFERENCES:
patent: 4100596 (1978-07-01), Olafson et al.
patent: 4103325 (1978-07-01), Hyman et al.
patent: 4551632 (1985-11-01), Jourdan et al.
patent: 4678144 (1987-07-01), Goehner et al.
patent: 5499187 (1996-03-01), Smith
patent: 5864221 (1999-01-01), Downs et al.
patent: 5969962 (1999-10-01), Gabor
patent: 5982642 (1999-11-01), Herfurth
patent: 6272025 (2001-08-01), Riggio et al.
patent: 6459175 (2002-10-01), Potega
patent: 6504132 (2003-01-01), Church
patent: 6654267 (2003-11-01), Leynaert
patent: 6704625 (2004-03-01), Albero et al.
patent: 6784624 (2004-08-01), Buonocunto
patent: 6807073 (2004-10-01), Scarlatescu
patent: 7039821 (2006-05-01), Potega
patent: 7059769 (2006-06-01), Potega
patent: 7112944 (2006-09-01), Kojori
patent: 7137599 (2006-11-01), Sitzmann et al.
patent: 7148659 (2006-12-01), Lanni
International Search Report mailed Apr. 23, 2008 in PCT/US07/067899.
Written Opinion mailed Apr. 23, 2008 in PCT/US07/067899.
Carlyle Womble
Laxton Gary L
Quddus Nusrat J
Rosemount Areospace Inc.
LandOfFree
Universal AC or DC aircraft device power supply having power... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Universal AC or DC aircraft device power supply having power..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Universal AC or DC aircraft device power supply having power... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4212026