Power converter transformer for suppressing conduction EMI...

Details Power converter transformer for suppressing conduction EMI... Power converter transformer for suppressing conduction EMI...

2011-01-25

2011-01-25

Vu, Bao Q (Department: 2838)

Electric power conversion systems

Current conversion

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

C363S018000

Reexamination Certificate

active

07876581

ABSTRACT:
In accordance with the present invention, a power converter transformer for suppressing conduction EMI (ElectroMagnetic Interference) includes a primary winding positioned at a primary side; a secondary winding positioned at a second side and coupled with the primary winding; a parasitic capacitor connected between one end of the primary winding and one end of the secondary winding; a switching unit connected to the other end of the primary winding; a Y-capacitor connected between the switching unit and a ground terminal; an auxiliary winding positioned at the secondary side and coupled with the secondary winding; and an auxiliary capacitor connected between the one end of the primary winding and the auxiliary winding.

REFERENCES:
patent: 5724236 (1998-03-01), Oglesbee
patent: 2003/0002300 (2003-01-01), Nakamura
patent: 2004/0240236 (2004-12-01), Lanni
patent: 2005/0002206 (2005-01-01), Park
patent: 1020040014972 (2004-02-01), None

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