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:
May. 20, 1997
Filed:
Mar. 24, 1995
Wataru Ikeshita, Aichi, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An inverter apparatus which controls an induction motor, has a forward converting unit, and can be combined with a power regeneration unit. The regenerative power converting unit has circuit arms, each being a parallel connection of a switching element and a diode, that are bridged. As a result, a DC voltage output from a forward converting unit that converts an input from an AC power supply into a DC voltage and outputs the DC voltage is inversely converted into an AC voltage and the AC voltage is returned to the AC power supply. A plurality of inversely converting units also are provided on the DC output side of the forward converting unit, and in each of those units, there are arms, each being a parallel connection of a switching element and a diode, that are bridged. The assignment can improve the utilization efficiency of a diode bridge of an inverter apparatus and a transistor bridge of a power regeneration apparatus when the inverter is used in applications where travel and elevation are handled as one set, e.g., an automated storage/retrieval system.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile