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. 30, 1998
Filed:
Oct. 31, 1996
Applicant:
Inventors:
Frederick G Moritz, Hauppauge, NY (US);
Roger Mosciatti, Coram, NY (US);
Assignee:
MFM Technology, Inc., Ronkonkoma, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P / ; H02K / ;
U.S. Cl.
CPC ...
318254 ; 318138 ; 318439 ;
Abstract
A two wire, brushless, d.c. motor power control system employs a rechargeable d.c. power source (e.g. a battery or a capacitor) to provide power to the commutation position sensing electronics, and commutation logic during dynamic braking and also if desired, during motor start-up after stopping or reversing direction. Current limiting is provided by sensing the two-wire motor current and using the communicating logic to modulate the turn-off/turn-on time of the communicating switches.