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.
Patent No.:
Date of Patent:
Jan. 31, 2017
Filed:
Apr. 11, 2014
Applicant:
The Regents of the University of Michigan, Ann Arbor, MI (US);
Assignee:
The Regents of the University of Michigan, Ann Arbor, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 7/515 (2007.01); H02M 1/44 (2007.01); H02M 1/12 (2006.01); H02M 7/797 (2006.01); H02M 7/523 (2006.01); B60L 11/18 (2006.01); H02M 1/42 (2007.01); H02M 7/162 (2006.01);
U.S. Cl.
CPC ...
H02M 1/44 (2013.01); H02M 1/126 (2013.01); H02M 7/797 (2013.01); B60L 11/1809 (2013.01); H02M 1/4233 (2013.01); H02M 7/1626 (2013.01); H02M 2001/123 (2013.01); Y02B 70/126 (2013.01); Y02T 10/7005 (2013.01); Y02T 10/7072 (2013.01); Y02T 90/127 (2013.01); Y02T 90/14 (2013.01);
Abstract
A bidirectional AC-DC converter is presented with reduced passive component size and common mode electro-magnetic interference. The converter includes an improved input stage formed by two coupled differential inductors, two coupled common and differential inductors, one differential capacitor and two common mode capacitors. With this input structure, the volume, weight and cost of the input stage can be reduced greatly. Additionally, the input current ripple and common mode electro-magnetic interference can be greatly attenuated, so lower switching frequency can be adopted to achieve higher efficiency.