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:
Aug. 30, 2016
Filed:
Apr. 30, 2013
Applicant:
Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;
Inventor:
Masato Sasaki, Osaka, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); H02M 7/217 (2006.01); H02M 1/34 (2007.01);
U.S. Cl.
CPC ...
H02M 7/217 (2013.01); H02M 3/158 (2013.01); H02M 2001/342 (2013.01);
Abstract
Zero-voltage switching of a switching element (Q) is achieved by turning off a switching element (Q) and then turning on switching element (Q) while the parasitic diode (D) of switching element (Q) is turned on. Subsequently, switching element (Q) is turned off when the current flowing through switching element (Q) changes from negative to positive (in a direction from the drain towards the source) and the current reaches a prescribed threshold value. Then, zero-voltage switching of switching element (Q) is achieved by turning on switching element (Q) while the parasitic diode (D) of switching element (Q) is turned on.