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:
Nov. 02, 1999
Filed:
Sep. 09, 1998
Applicant:
Inventor:
Donald P Labriola, II, Covina, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B / ;
U.S. Cl.
CPC ...
318599 ; 318560 ; 318567 ; 318569 ; 318600 ;
Abstract
An all digital control method for motor drivers eliminates physical motor current sensing. The motor and the driver are modeled to estimate the actual current and the estimated current is used to perform motor control. This provides simplified driver circuitry. Driver non-linearity due to driver dead time may be compensated and minimum driver on times are accommodated while providing good waveform fidelity, minimized motor heating and increased motor system damping.