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:
Jun. 01, 1999
Filed:
Jun. 20, 1997
Kazunori Sanada, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A controller for controlling power transducers to maintain a balanced three-phase output voltage with no influence on current control even when an unbalanced load is connected to a three-phase output of an inverter of the power transducer. The controller provides a stable high-precision three-phase voltage to a load by suppressing higher harmonic voltage components even when a non-linear load is connected. The controller includes a voltage regulator circuit having, for each phase, circuitry calculating a mean value of the output voltage of the inverter. The controller detects and controls deviation in the output voltage from a single-phase mean voltage command. The controller determines a voltage deviation ratio from the deviation and multiplies each output voltage value by the voltage deviation ratio and uses the product as a new voltage detection value.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile