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. 12, 1994
Filed:
Aug. 28, 1992
Applicant:
Inventor:
Makoto Ihara, Sakurai, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F / ;
U.S. Cl.
CPC ...
3072963 ; 307264 ;
Abstract
A voltage dropping circuit for a semiconductor device is provided. The voltage dropping circuit includes a control unit for producing a reference voltage from a first specified voltage, an output unit for generating a second specified voltage which is a half of the first specified voltage in accordance with the reference voltage, a timer circuit for generating a driving pulse which becomes active intermittently, and a switch circuit for operating the control unit when the driving pulse is active and stopping the operation of the control unit when the driving pulse is not active.