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:
Sep. 27, 2016
Filed:
Jan. 31, 2013
Tomohiro Ueno, Tokyo, JP;
Yoshitaka Onishi, Tokyo, JP;
Satoshi Kawamura, Tokyo, JP;
Shinsuke Takeshima, Kobe, JP;
Tomohiro Ueno, Tokyo, JP;
Yoshitaka Onishi, Tokyo, JP;
Satoshi Kawamura, Tokyo, JP;
Shinsuke Takeshima, Kobe, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
If a bus current a bus current detectordetects exceeds a current cutoff value, an overcurrent detectorsupplies a gate driverwith an open signal for turning off switching elements-to break the current to a motor. Besides, when the overcurrent detectordetects an overcurrent, a feedback controllerprovides the gate driverwith a short-circuit braking instruction to apply short-circuit braking after breaking the power supply, and to restart PWM control from a state in which the short-circuit braking is being applied and the duty ratio command value is reset at 0.