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. 21, 1995
Filed:
Jun. 25, 1993
Applicant:
Inventor:
Motoyasu Yoshino, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318799 ; 318778 ; 318254 ; 318138 ; 318439 ;
Abstract
A peak level of a drive signal U having predetermined inclination portions is detected, and a detection signal Q is outputted when the peak level has not reached a predetermined value. Since the detection signal Q indicates the out-of-step condition of the motor, the use of the detection signal Q allows reactivation or the like to be triggered easily in a simple circuit. Therefore, the rotation of the motor can be activated by reactivation or the like without strict adjustment but with only a practically adequate adjustment.
Yoshino, Motoyasu. (1995). Motor control and drive circuit (U.S. Patent No. 5399953). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5399953
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile