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:
Jun. 23, 2020
Filed:
Dec. 14, 2017
Applicant:
Hosiden Corporation, Osaka, JP;
Inventors:
Eiji Sato, Osaka, JP;
Hiroshi Ema, Osaka, JP;
Assignee:
Hosiden Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 50/12 (2016.01); H01F 38/14 (2006.01); H02J 7/02 (2016.01); H02M 1/32 (2007.01); H02H 9/04 (2006.01);
U.S. Cl.
CPC ...
H02J 50/12 (2016.02); H01F 38/14 (2013.01); H02H 9/04 (2013.01); H02J 7/025 (2013.01); H02M 1/32 (2013.01);
Abstract
A contactless power transfer apparatus includes an E-class amplifier having a coil configured to store an amount of energy for use in contactless power transfer and a field-effect transistor for controlling a current that flows in the coil, and an arrester provided between a drain terminal and a source terminal of the field-effect transistor and configured to be operated in response to application of a voltage having a voltage value lower than an absolute maximum rated voltage value between the drain and the source of the field-effect transistor.