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. 14, 1987
Filed:
Mar. 25, 1985
Applicant:
Inventor:
Kazunori Fujioka, Furukawa, JP;
Assignee:
Alps Electric Co., Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318332 ; 318359 ; 318349 ; 3183 / ; 363124 ;
Abstract
A motor drive control device to control the speed of a motor includes a drive control section in series with the motor. Only, when a speed setting voltage exceeds a first predetermined value the, drive control section conducts to energize the motor, and when that setting voltage exceeds a second predetermined value, the drive control section is short-circuited thereacross to energize fully the motor.