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:
Nov. 06, 2018
Filed:
May. 14, 2013
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventors:
Takuya Mukai, Tokyo, JP;
Yoshiaki Koizumi, Tokyo, JP;
Assignee:
Mitsubishi Electric Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 9/02 (2006.01); F24F 11/30 (2018.01); F24F 11/62 (2018.01);
U.S. Cl.
CPC ...
H02H 9/025 (2013.01); F24F 11/30 (2018.01); F24F 11/62 (2018.01); F24F 2221/32 (2013.01);
Abstract
A current path of a first transistor is connected in series to a communication line. When the electric current through the current path of the first transistor becomes equal to or greater than a set electric current, a current-limiting controller limits the electric current through the current path by controlling the first transistor to increase the resistance of the current path. When the end-to-end voltage of the current path of the first transistor becomes equal to or greater than a set voltage, a load limiter switches the first transistor off.