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:
Oct. 06, 1992
Filed:
Sep. 04, 1990
Applicant:
Inventor:
Takashi Murakami, Furukawa, JP;
Assignee:
Alps Electric Co., Ltd., Tokyo, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361 93 ; 361 86 ; 361 42 ; 361 18 ;
Abstract
A self diagnosing circuit for a load control circuit is disclosed, which detects the state of a driving line connected with a load and protects a load driving circuit by turning off transistors in the load driving circuit, when a grounding accident occurs, in which, in the case where an error is produced so that the load doesn't work normally, responding to a control signal, a process is executed, corresponding to the content of that error and the content of that error is stored or made known to the exterior through display means.