ACDC converter

Details ACDC converter ACDC converter

2005-10-27

2011-10-11

Riley, Shawn (Department: 2838)

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

C363S127000, C363S132000, C363S056050

Reexamination Certificate

active

08035995

ABSTRACT:
This invention relates to an ACDC converter (1) comprising a converter input (3) and a converter output (5), a pre-regulation stage (7) and a DC transformer stage (9) comprising a transformer input stage (11) and a transformer output stage (13). The transformer input stage comprises a double ended converter and there is further provided a controller (17) for providing a control signal to the double ended converter. The controller (17) operates the ACDC converter using burst mode control and by sending control signals comprising pulse sets that are designed to provide substantially zero net magnetising current in the double ended converter. The pre-regulation stage preferably comprises a buck converter which in turn also provides power factor correction to the input of the ACDC converter.

REFERENCES:
patent: 4533986 (1985-08-01), Jones
patent: 7023710 (2006-04-01), Durbaum et al.
patent: 7176660 (2007-02-01), Usui et al.
patent: 7558083 (2009-07-01), Schlecht
patent: 7633769 (2009-12-01), Toda et al.
patent: 7796408 (2010-09-01), Wang et al.

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