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:
Sep. 04, 2018
Filed:
Jan. 28, 2016
Rohm Co., Ltd., Ukyo-Ku, Kyoto, JP;
ROHM CO., LTD., Kyoto, JP;
Abstract
A control circuit is provided for a power receiver apparatus. A target voltage range setting unit sets an upper limit voltage Vand a lower limit voltage Vthat define a target voltage range REF to be set for a rectified voltage Vthat develops across a smoothing capacitor. An electric power control unit compares the rectified voltage Vwith each of the upper limit voltage Vand the lower limit voltage V, and generates a power control signal Dbased on the comparison result. A modulator modulates the power control signal D, and transmits the modulated signal to a wireless power transmitter apparatus via a reception coil. Upon detection of an oscillation state in the rectified voltage V, the target voltage range setting unit expands the target voltage range REF.