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:
Mar. 05, 2019

Filed:

Feb. 01, 2017
Applicant:

Texas Instruments Incorporated, Dallas, TX (US);

Inventors:

Rahmi Hezar, Allen, TX (US);

Nikolaus Klemmer, Dallas, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02J 3/12 (2006.01); G05F 1/00 (2006.01); H02M 3/156 (2006.01); H02M 1/44 (2007.01); H02M 1/12 (2006.01);
U.S. Cl.
CPC ...
H02M 3/156 (2013.01); H02M 1/12 (2013.01); H02M 1/44 (2013.01);
Abstract

Methods and apparatus for reducing electromagnetic interference in a power converter using phase hopping in conjunction with pulse width modulation are disclosed. An example power converter includes an input voltage to, when a control switching device receives a first voltage, increase an output voltage; and when the control switching device receives a second voltage, decrease the output voltage. The example power converter further includes a phase hopping generator to generate a phase varying signal corresponding to two or more phases, the phase varying signal corresponding to a reference voltage; and output the phase varying signal to control the control switching device.


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