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:
Jul. 04, 1989
Filed:
May. 10, 1988
Applicant:
Inventor:
Hidetaka Numata, Furukawa, JP;
Assignee:
Alps Electric Co., Ltd., , JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361 57 ; 361 18 ; 361101 ;
Abstract
A transistor protective circuit includes a transistor transmitting a current to a load to drive same, and a switching element provided in a preceding stage of the transistor and responsive to an abnormal current in the load to turn off the transistor to protect it against destruction.