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:
Apr. 06, 1993
Filed:
Aug. 14, 1991
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
This invention relates to a motor current phase delay compensating method and apparatus thereof enabling the driven system to efficiently operate by compensating current phase delay of the stator coil winding such that an alternating current servo motor for driving a FA system, a CNC, or a robot for industry generates maximum torque. An output signal of an A/D converter and a rotational direction discriminating signal of an alternating current servo motor are received whereby a phase delay value with respect to the speed is generated. The phase delay value and an output signal from the A/D converter are summed whereby a phase delay compensation amount is computed to compensate the phase delay amount. The phase delay compensation amount and an output from the speed PI controller are respectively received whereby U-phase and V-phase analog current reference instruction values area generated. The U-phase and V-phase analog current reference instruction values are summed and then inverted whereby a W-phase analog current reference instruction value is generated and thereby current delay flowing to the stator coil winding is properly compensated.