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:
Mar. 06, 1990
Filed:
Jul. 12, 1989
Hiroyuki Horiuchi, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A device for determining whether a source voltage from a power source to be applied to a load such as an electrical apparatus is below a standard level but above a specified level or below this specified level includes a voltage divider circuit for dividing the source voltage, a single voltage level detection circuit for comparing an inputted voltage, a transistor switch with which the source voltage or the output voltage from the voltage divider circuit is selectably inputted to the voltage level detection circuit, and a central processing unit for controlling the operation of the transistor switch according to the result of detection by the voltage level detection circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile