The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 15, 2015

Filed:

Nov. 11, 2013
Applicant:

Takashi Kanamori, San Jose, CA (US);

Inventor:

Takashi Kanamori, San Jose, CA (US);

Assignee:

Other;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/44 (2007.01); H02M 3/156 (2006.01); H02M 3/158 (2006.01);
U.S. Cl.
CPC ...
H02M 1/44 (2013.01); H02M 3/156 (2013.01); H02M 3/158 (2013.01);
Abstract

An apparatus and system comprise a noise cancelation power converter being configured for phase inverted synchronous operation with respect to a primary power converter. The primary power converter is operable to supply power to at least one device. The primary power converter produces a first electromagnetic interference during operation to supply the power. The first electromagnetic interference is coupleable to the device. The noise cancelation power converter further is configured with parasitic components substantially matching parasitic components of the primary power converter. The noise cancelation power converter further produces a second electromagnetic interference that is coupleable to the device. The second electromagnetic interference comprises frequency components having an inverted phase relative to frequency components of the first electromagnetic interference for substantially reducing a sum of the first electromagnetic interference and the second electromagnetic interference during coupling to the device.


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