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. 16, 2021
Filed:
Jun. 22, 2018
Applicant:
Rohm Co., Ltd., Kyoto, JP;
Inventor:
Daisuke Uchimoto, Kyoto, JP;
Assignee:
ROHM CO., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 50/12 (2016.01); H02J 7/02 (2016.01); H02M 1/14 (2006.01); H02J 50/80 (2016.01); H02J 50/10 (2016.01); H02M 3/155 (2006.01); H04B 5/00 (2006.01); H02M 1/00 (2006.01); H01Q 1/24 (2006.01);
U.S. Cl.
CPC ...
H02J 50/12 (2016.02); H02J 7/025 (2013.01); H02J 50/10 (2016.02); H02J 50/80 (2016.02); H02M 1/143 (2013.01); H02M 3/155 (2013.01); H04B 5/0031 (2013.01); H04B 5/0037 (2013.01); H04B 5/0081 (2013.01); H01Q 1/248 (2013.01); H02M 2001/0009 (2013.01);
Abstract
A rectifier circuit rectifies the current that flows through a reception coil. A smoothing capacitor is coupled to the output of the rectifier circuit. A power supply circuit stabilizes the rectified voltage Vthat occurs across the smoothing capacitor, and supplies the rectified voltage thus stabilized to a load. A dump circuit sinks the first dump current Ifrom the output of the power supply circuit. A current detection circuit detects the current Ithat flows through the power supply circuit, and generates a current detection signal Sthat indicates the amount of the current.