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:
Apr. 17, 2012
Filed:
Jan. 14, 2008
Kota Onishi, Nagoya, JP;
Kentaro Yoda, Chino, JP;
Takahiro Kamijo, Nagano-ken, JP;
Haruhiko Sogabe, Chino, JP;
Kuniharu Suzuki, Tokyo, JP;
Hiroshi Kato, Yokohama, JP;
Katsuya Suzuki, Takasaki, JP;
Manabu Yamazaki, Hiratsuka, JP;
Kota Onishi, Nagoya, JP;
Kentaro Yoda, Chino, JP;
Takahiro Kamijo, Nagano-ken, JP;
Haruhiko Sogabe, Chino, JP;
Kuniharu Suzuki, Tokyo, JP;
Hiroshi Kato, Yokohama, JP;
Katsuya Suzuki, Takasaki, JP;
Manabu Yamazaki, Hiratsuka, JP;
Seiko Epson Corporation, Tokyo, JP;
Sony Ericsson Mobile Communications Japan, Inc., Tokyo, JP;
Abstract
A power reception device utilizing non-contact power transmission causes a PMOS transistor as a switch circuit to be turned ON when a secondary battery is in a heavy-load state to form a path which bypasses a series regulator (LDO) as a power supply circuit, and supplies a charging current to the secondary battery through the bypass path. An offset may be provided between ON/OFF control threshold values of the PMOS transistor. The series regulator (LDO) may be entirely or partially set in a non-operating state when forming the bypass path.