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:
May. 23, 2017
Filed:
Feb. 25, 2014
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Sumitomo Wiring Systems, Ltd., Yokkaichi-shi, JP;
Autonetworks Technologies, Ltd., Yokkaichi-shi, JP;
Masayoshi Hirota, Osaka, JP;
Tatsuya Izumi, Osaka, JP;
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Sumitomo Wiring Systems, Ltd., Yokkaichi-shi, JP;
AutoNetworks Technologies, Ltd., Yokkaichi-shi, JP;
Abstract
Provided is a DC-AC conversion device capable of reducing ripple current output from a battery. A DC-AC conversion device, including a DC-DC conversion circuit having a full bridge circuit, a DC-AC conversion circuit converting DC voltage output from the DC-DC conversion circuit into AC voltage, a coil with one end connected to one DC terminal of the DC-DC conversion circuit, and a capacitor connected between the other end of the coil and the other DC terminal, comprises: a short-circuit control part controlling switching so that a leg of the full bridge circuit is temporarily short-circuited; a phase reverse control part controlling switching of the full bridge circuit so that a phase of AC voltage output from the full bridge circuit is reversed, after the leg of the full bridge circuit is temporarily short-circuited; and a short-circuit duration variation part varying a duration for which the leg of the full bridge circuit is short-circuited at a specific cycle according to a cycle of AC voltage output from the DC-AC conversion circuit.