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:
Jan. 29, 2019
Filed:
Sep. 06, 2013
Mitsubishi Electric Corporation, Tokyo, JP;
Kei Hayashi, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A semiconductor device includes a semiconductor switching element, a correction current voltage generation circuit, a voltage dividing circuit, an overcurrent protection circuit, and a drive circuit. The switching element is capable of outputting a sense current from its sense terminal. A sense resistor receives the sense current from the sense terminal and produces a sense voltage. The correction current voltage generation circuit generates a correction voltage. The voltage dividing circuit can output a corrected sense voltage by performing resistance voltage dividing on the sense voltage and the correction voltage with resistors. The overcurrent protection circuit is supplied with the corrected sense voltage and outputs a halt signal to the drive circuit when the corrected sense voltage Vin is higher than a threshold voltage.