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:
Feb. 13, 2018
Filed:
Apr. 15, 2015
Rohm Co., Ltd., Ukyo-Ku, Kyoto, JP;
Tatsuya Iwasaki, Kyoto, JP;
Kazuyoshi Yasuoka, Kyoto, JP;
Naoki Inoue, Kyoto, JP;
Daisuke Uchimoto, Kyoto, JP;
ROHM CO., LTD., Kyoto, JP;
Abstract
A power receiving control circuit is provided that receives AC coil current Ifrom a reception coil and that supplies DC output voltage V. A rectifier circuit rectifies the coil current I. A linear regulator receives a rectified voltage Vacross a smoothing capacitor, and generates the output voltage Vstabilized to a predetermined target level. A controller has predetermined control characteristics configured as a relation between the value of a charging current Iand the target value of the rectified voltage V. The controller detects the value of the charging current I, and transmits information which indicates electric power to be transmitted from a wireless power supply apparatus, with reference to the control characteristics. The controller is configured to be capable of changing the control characteristics.