Zigzag autotransformer apparatus and methods

Details Zigzag autotransformer apparatus and methods Zigzag autotransformer apparatus and methods

2008-12-16

2010-12-28

Mai, Anh T (Department: 2832)

Inductor devices

Polyphase

C323S355000, C323S361000, C336S221000, C336S180000

Reexamination Certificate

active

07859376

ABSTRACT:
A zigzag autotransformer includes a zigzag transformer including first, second and third magnetic cores and an auxiliary winding set including respective pairs of series-connected windings on respective pairs of the first, second and third magnetic cores, the pairs of series-connected windings having respective first terminals connected to respective AC input phase terminals of the zigzag autotransformer and respective second terminals configured to provide respective AC output phases.

REFERENCES:
patent: 5982262 (1999-11-01), Levin
patent: 7049921 (2006-05-01), Owen
patent: 7170268 (2007-01-01), Kim
patent: 7274280 (2007-09-01), Paice
patent: 2006/0126242 (2006-06-01), Datta et al.
patent: 2007/0290670 (2007-12-01), Lee
Catalog, ACME Electric, Power Distribution Products Division, 2005, pp. 1, 31, 156.
Singh et al., “Zigzag Connected Autotransformer Based Controlled AC-DC Converter for Pulse Multiplication”, 2007 IEEE Int'l Symposium on Ind. Electronics (ISIE), pp. 889-894 (Jun. 2007).

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