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:
Jul. 01, 2014
Filed:
Dec. 19, 2008
Shun Kazama, Osaka, JP;
Shun Kazama, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A power conversion apparatus includes a MOSFET having a channel and a body diode connected in parallel. The channel of the MOSFET becomes conductive according to a control signal, so that a flow path of a regenerative current of an inductor is formed, and the body diode of the MOSFET causes the regenerative current of the inductor to flow in a forward direction. The power conversion apparatus also includes a shunt resistor and a voltage measuring unit which measure an amount of a current flowing into the MOSFET. In addition, the power conversion apparatus includes a threshold designating unit which designates a threshold current amount, and a synchronous rectification prohibiting circuit which prohibits supplying the control signal when the amount of the current measured by the shunt resistor and the voltage measuring unit is greater than the threshold current amount designated by the threshold designating unit.