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:
Jun. 17, 1980
Filed:
May. 25, 1978
Applicant:
Inventor:
Albert C Leenhouts, Harwinton, CT (US);
Assignee:
The Superior Electric Company, Bristol, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B / ;
U.S. Cl.
CPC ...
318696 ;
Abstract
A chopping power supply controls power to the bifilar winding phases of a stepping motor with the power being applied to one winding until a selectable value of current flows and is then removed for a fixed duration to have induced current in the other winding be directed back to the power source while still producing usable magnetic flux and in which each phase has its own chopper circuit with both being operated at super-audible rates at least during standstill operation.