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:
Feb. 06, 2018
Filed:
Mar. 12, 2013
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Nsk Ltd., Shinagawa-ku, JP;
Sari Maekawa, Minato-ku, JP;
Shin Kumagai, Shinagawa-ku, JP;
Shigeru Fukinuki, Shinagawa-ku, JP;
Minoru Awazu, Shinagawa-ku, JP;
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
NSK Ltd., Shinagawa-ku, JP;
Abstract
An inverter device includes a switch circuit configured by series-connecting two N-channel semiconductor switching elements in opposite directions so that the switch circuit makes or breaks electrical connection between a DC power supply and an inverter circuit, and a control circuit carrying out a protecting operation in which when the control circuit outputs a control signal to control switching of the inverter circuit and an operating condition is met, the control circuit stops output of the control signal to turn off all switching elements configuring the inverter circuit and the switch circuit. In the protecting operation, the switch circuit is turned off after output of the control signal has been stopped so that changes in drain-source voltages and drain currents of the N-channel semiconductor switching elements are rendered slower.