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. 11, 2026
Filed:
Mar. 25, 2022
Tdk Corporation, Tokyo, JP;
Akinori Hariya, Tokyo, JP;
Kenji Negoro, Tokyo, JP;
TDK CORPORATION, Tokyo, JP;
Abstract
An electric power conversion apparatus includes a first electric power terminal, a switcher, a transformer, a rectifier with a switching circuit including first and second switching devices, a smoother, a second electric power terminal, a controller, and a driver driving the switching circuit. The switching circuit includes a first device that is provided on a path coupling a first terminal and a control terminal of the first switching device to each other, and that is configured to clamp a voltage. The driver is configured to output a first control signal and a second control signal from a first output terminal and a second output terminal, respectively. The controller is configured to control operation to cause electric power to be supplied from the second electric power terminal toward the first electric power terminal, and set an output impedance of the first output terminal of the driver to a high impedance state.