Common mode noise reduction circuit utilizing dual primary...

Details Common mode noise reduction circuit utilizing dual primary... Common mode noise reduction circuit utilizing dual primary...

2006-07-18

2009-06-09

Riley, Shawn (Department: 2838)

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

C363S040000

Reexamination Certificate

active

07545656

ABSTRACT:
A common mode noise cancellation circuit eliminates common mode noise generated by a high-frequency switching device. The common mode noise reduction circuit includes a single switching device and a transformer. The switching device receives a rectified voltage and produces a switched voltage. The transformer includes a first primary winding, a second primary winding, and a secondary winding. The transformer couples the switched output from the first and the second primary winding to the secondary winding to generate a transformed voltage. A positive signed common mode noise waveform generated by the switching device is coupled from the first primary winding to the first secondary winding, and a negative signed common mode noise waveform generated by the switching device is coupled from the second primary winding to the first secondary winding, which results in a lower magnitude common mode noise waveform being present at the secondary winding.

REFERENCES:
patent: 5598327 (1997-01-01), Somerville et al.
patent: 6449176 (2002-09-01), Kakuda
patent: 6459597 (2002-10-01), Igarashi et al.
patent: 6490181 (2002-12-01), Liu et al.
patent: 6717827 (2004-04-01), Ota
patent: 6850423 (2005-02-01), Lanni

Affiliated with

Also associated with

Rating

Common mode noise reduction circuit utilizing dual primary... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Common mode noise reduction circuit utilizing dual primary..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Common mode noise reduction circuit utilizing dual primary... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4147276