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:
Oct. 07, 1997
Filed:
Oct. 27, 1995
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A motor controller is provided which improves response to control inversion of a motor, and which also improves controllability and driving comfort when applied to electric power steering. In the motor controller a bridge circuit 5 is formed which includes switching elements 3a to 3d which are driven to control the motor 2 in a direction of conduction, a drive system is switched between a single-phase one-sided chopper system and either a single-phase double-sided chopper system or a double-phase double-sided chopper system based on detected states of an apparatus or the amount of control, so as to control the motor 2 with a drive system suitable for each state of the apparatus.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile