Ripple-current reduction for transformers

Details Ripple-current reduction for transformers Ripple-current reduction for transformers

2006-11-28

2006-11-28

Sterrett, Jeffrey (Department: 2838)

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

C363S040000, C363S046000

Reexamination Certificate

active

07142440

ABSTRACT:
A ripple current reduction circuit is provided that reduces the ripple current of a transformer by providing a substantially opposite or inverse ripple of an auxiliary current that can be combined with the ripple current of the transformer for cancellation or reduction of the ripple current.

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patent: 4437560 (1996-05-01), None
Michael J. Schutten, et al, “Ripple Current Cancellation Circuit”, 2003 IEEE, pp. 464-470.
G. Laimer, et al., “Zero-Ripple EMI Input Filter Concepts for Application in a 1-U 500kHz Si/SiC Three-Phase PWM Rectifier”, IEICE/IEEE Intele C '03, Cot. 19-23, 2003, pp. 750-756.

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