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:
Mar. 13, 2012
Filed:
Jul. 15, 2009
Kota Onishi, Nagoya, JP;
Masayuki Kamiyama, Nagoya, JP;
Nobutaka Shiozaki, Nagoya, JP;
Kentaro Yoda, Chino, JP;
Takahiro Kamijo, Fujimi-cho, JP;
Kota Onishi, Nagoya, JP;
Masayuki Kamiyama, Nagoya, JP;
Nobutaka Shiozaki, Nagoya, JP;
Kentaro Yoda, Chino, JP;
Takahiro Kamijo, Fujimi-cho, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A power receiving control device provided to a power receiving device in a contactless power transmission system that transmits power from a power transmission device by electromagnetically coupling primary and secondary coils to feed electric power to a load. The power receiving control device includes a power receiving side control circuit. The power receiving side control circuit turns on a switch circuit provided between input and output nodes of a regulator in the power receiving device based on detecting lowering power feeding capability. The power receiving side control circuit turns off the switch circuit when power feeding is temporarily stopped in a period when the regulator is bypassed when voltage of a power supply control signal output terminal switches levels or before the power feeding is temporarily stopped. The power receiving side control circuit turns on the switch circuit after releasing the temporary stop of power feeding.