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:
May. 10, 1977
Filed:
Dec. 20, 1974
Applicant:
Inventor:
Kinji Tanikoshi, Kawasaki, JA;
Assignees:
Canon Kabushiki Kaisha, Tokyo, JA;
Canon Seiki Kabushiki Kaisha, Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318138 ; 318254 ;
Abstract
An object of the present invention is to provide a comparator circuit for a control circuit of a Hall motor having a compensation function for correcting variation in reference voltage and in temperature and power source voltage, etc. by impressing an induction voltage which corresponds to the rotation speed of a motor and a reference voltage which corresponds to the reference number of rotation to the both input terminal of a differential type circuit in a control circuit for a Hall motor.