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. 30, 1991
Filed:
Jul. 06, 1989
Yutaka Ono, Tokyo, JP;
Yasuhiko Muramatsu, Tokyo, JP;
Hideo Banzai, Tokyo, JP;
Yoichi Kikukawa, Tokyo, JP;
Shigeru Hashida, Tokyo, JP;
Shotaro Shindo, Tokyo, JP;
Haruo Higuchi, Tokyo, JP;
Hiroyuki Shinomiya, Tokyo, JP;
Mitsuhiro Nikaido, Tokyo, JP;
Koichi Sato, Tokyo, JP;
Yokogawa Electric Corporation, Tokyo, JP;
Abstract
A motor drive system used with industrial robots, processing machines, and the like comprising an external interface part ready for connecting a plurality of kinds of host controllers generating a command signal; a sensor interface part to which a motor rotation detecting sensor is connected; a main control part operating for feedback control of a motor according to signals provided by way of the interfaces; and a power amplification part for feeding a current to motor coils according to a control signal from the main control part and wherein the external interface part, the sensor interface part, the main control part, and the power amplification part are separate and modularized as cards. Advantageously, the various controllers, sensors and power systems are changeable to flexibly meet different user requirements.