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. 08, 1986
Filed:
Dec. 14, 1984
Applicant:
Inventors:
Assignee:
Sanyo Electric Co., Ltd., Moriguchi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05B / ;
U.S. Cl.
CPC ...
318314 ; 318326 ; 318327 ; 318341 ; 318599 ; 318329 ;
Abstract
A servomotor controller of a Phase Locked Loop type, in which a phase control circuit and speed control circuit are composed of digital circuits, makes it possible to set a speed of the servomotor and to change the speed with ease and accuracy. The controller also makes it possible to reduce the assembling time with smaller number of parts and high reliability is obtained when the controller is used in various apparatus since the controller can be composed of a one chip integrated circuit. One can choose freely either quick start mode, which makes the speed increase quickly up to the set speed, or soft start mode, which makes the speed increase slowly.