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. 12, 1993
Filed:
Jul. 20, 1990
Applicant:
Inventor:
Kazuo Imanishi, Yokohama, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361 91 ; 361 86 ; 307 87 ;
Abstract
Among a plurality of power supply circuits arranged in a power supply monolithic integrated circuit, output voltages of power supply circuits except for an external microcomputer power supply circuit are monitored by a protective circuit. When an abnormal output appears at least one of the power supply circuits, the outputs of all the power supply circuits except for the microcomputer power supply circuit are cut off.