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. 21, 1987
Filed:
Feb. 10, 1986
Applicant:
Inventor:
Pierre Demeyer, Uriage, FR;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361 96 ; 361 97 ; 364483 ;
Abstract
Microprocessor-based solid-state trip unit (48) processing digital signals derived from analog signals supplied by current sensors (16). The analog signals are applied to a calibration circuit (34), which adapts the output range of the analog circuits to that of the logic circuits, to obtain with an 8-bit Analog-to-Digital Converter (50) associated with a Multiplexer (29) a range equivalent to that of 12-bit processing systems.