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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.:

US 10971953 B1

PDFFull Text
Date of Patent:
Apr. 06, 2021

Filed:

Aug. 26, 2016

Contactless power receiving device, contactless power transfer device, and contactless power transfer and receiving device

Applicant:

Maxell, Ltd., Kyoto, JP;

Inventors:

Osamu Kawamae, Kyoto, JP;

Katsuei Ichikawa, Tokyo, JP;

Assignee:

MAXELL, LTD., Kyoto, JP;

Attorney:

McDermott Will & Emery LLP

Primary Examiner:

Jared Fureman

Assistant Examiner:

Michael J Warmflash

Int. Cl.
CPC ...
H02J 50/12 (2016.01); H01F 38/14 (2006.01); H02J 7/02 (2016.01); H02M 7/06 (2006.01); H02M 7/46 (2006.01); H02J 5/00 (2016.01); B60L 53/12 (2019.01); H02J 50/80 (2016.01); H02J 50/10 (2016.01); H02M 7/48 (2007.01);
U.S. Cl.
CPC ...
H02J 50/12 (2016.02); B60L 53/12 (2019.02); H01F 38/14 (2013.01); H02J 5/005 (2013.01); H02J 7/025 (2013.01); H02J 50/10 (2016.02); H02J 50/80 (2016.02); H02M 7/06 (2013.01); H02M 7/46 (2013.01); H02M 2007/4815 (2013.01);
Abstract

A contactless power receiving device includes a power receiving coil receiving power from a contactless power transfer device, a rectifier circuit rectifying the power to form a rectified output on a high potential side and a rectified output on a low potential side, a smoothing circuit receiving the rectified output on the high potential side and the rectified output on the low potential side, and a switching power supply converting a DC voltage from the smoothing circuit to a first voltage. The smoothing circuit includes a first inductor transmitting the rectified output on the high potential side, a second inductor transmitting the rectified output on the low potential side, and a smoothing capacitance element to which the rectified output on the high potential side and the rectified output on the low potential side are supplied, and the rectified output on the low potential side is connected to a ground potential.

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