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.

Date of Patent:
Jul. 31, 2018

Filed:

Aug. 19, 2014
Applicants:

Autonetworks Technologies, Ltd., Yokkaichi, Mie, JP;

Sumitomo Wiring Systems, Ltd., Yokkaichi, Mie, JP;

Sumitomo Electric Industries, Ltd., Osaka-shi, Osaka, JP;

Inventors:

Katsuma Tsukamoto, Yokkaichi, JP;

Yusuke Yano, Yokkaichi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/05 (2006.01); H02H 3/20 (2006.01); H03K 17/082 (2006.01); H03K 17/10 (2006.01); H03K 17/12 (2006.01); H02H 1/00 (2006.01);
U.S. Cl.
CPC ...
H02H 3/207 (2013.01); H02H 1/0007 (2013.01); H03K 17/0822 (2013.01); H03K 17/102 (2013.01); H03K 17/122 (2013.01); H03K 2217/0063 (2013.01);
Abstract

A semiconductor device is provided in which burning of a semiconductor element can be prevented without incorporating a fuse. The semiconductor device, which includes a plurality of semiconductor elements that are connected in parallel between a direct current power source and a load, is configured to simultaneously turn ON or OFF the plurality of semiconductor elements. The semiconductor device includes a voltage detection means for detecting a voltage value across a fixed potential and a connection node for the plurality of semiconductor elements and for the load, a determining means for determining, if the semiconductor elements are OFF, whether or not a voltage value detected by the voltage detection means is higher than a predetermined voltage value; and a means for turning the plurality of semiconductor elements ON when the unit determines that the detected voltage value is higher than the predetermined voltage value.


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