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:
Jan. 11, 1983
Filed:
Jan. 10, 1980
Kazuo Watanabe, Hachioji, JP;
Hahiro Makabe, Fussa, JP;
Janome Sewing Machine Co., Ltd., Tokyo, JP;
Abstract
A pulse motor driving device for a pulse motor having a plurality of windings. A first plurality of switching elements is connected to a first pole of a D-C power supply and to a connecting means for providing a connection to the windings of the pulse motor and to a second plurality of switching elements. The second pole of the D-C power supply is connected to the second plurality of switching elements. A plurality of diodes is connected to the connection means and to one of the poles of the D-C power supply. A capacitor is connected between one of the plurality of switching means and the D-C power supply. A comparison signal generator can be connected to the first plurality of switching elements, a reference voltage generator can be connected to the comparison signal generator and current detectors can be connected between the second plurality of switching elements and the D-C power supply.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile