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. 05, 2020
Filed:
Jun. 08, 2016
Fuji Electric Co., Ltd., Kawasaki-shi, JP;
Hirokazu Tajima, Suzuka, JP;
Osamu Takei, Hino, JP;
FUJI ELECTRIC CO., LTD., Kawasaki, JP;
Abstract
A high-speed charger with a long lifespan such that a power converting inverter can be reliably stopped in accordance with a forced stop signal, without causing a malfunction. Pulse transformers corresponding respectively to switching elements configure an inverter. A control circuit outputs gate signals for switching on and off the switching elements to primary side circuits, each of which includes a primary winding of one of the pulse transformers. Gate drive circuits switch on and off of the switching elements based on voltage generated in secondary windings of the pulse transformers. Transistors acting as interruption control switching elements are interposed in the primary side circuit of each of the pulse transformers. The transistors are cut off in accordance with a forced stop signal, whereby an operation of the inverter stops.