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:
Oct. 31, 2017

Filed:

Sep. 21, 2016
Applicant:

Delta Electronics, Inc., Taoyuan, TW;

Inventors:

Yi-Cong Xie, Taoyuan, TW;

Min Zhou, Taoyuan, TW;

Rui Wu, Taoyuan, TW;

Jin-Ping Zhou, Taoyuan, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/44 (2007.01); H02M 1/42 (2007.01); H02M 3/335 (2006.01); H02M 3/156 (2006.01); H02M 3/158 (2006.01); H02M 3/337 (2006.01); H02M 7/487 (2007.01);
U.S. Cl.
CPC ...
H02M 1/44 (2013.01); H02M 1/42 (2013.01); H02M 3/33507 (2013.01); H02M 1/4225 (2013.01); H02M 3/156 (2013.01); H02M 3/1584 (2013.01); H02M 3/337 (2013.01); H02M 7/487 (2013.01); Y02B 70/126 (2013.01);
Abstract

A radio frequency interference suppression circuit that includes a reference ground end, a main power circuit, a driving circuit and an impedance unit is provided. The main power circuit includes a first switch that includes a control end, a first and a second end. A minimal impedance is presented between the second end and the reference ground end. The driving circuit is coupled to the control end and the second end. The first impedance unit is formed between the second end and the reference ground end in a high frequency differential mode loop to reduce a high frequency voltage drop therein. The first switch receives a driving signal from the driving circuit to be turned on or turned off between the first and the second ends accordingly to make the main power circuit converts a first power signal to a second power signal.


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