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:
Dec. 21, 1999
Filed:
Mar. 12, 1997
Wataru Ikeshita, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A voltage-type inverter device includes a 1/2 V(DC) detecting circuit (31) for detecting a voltage between one end of a DC power supply (3) and an output from an inverter circuit (4); a voltage command value setting means (29) for commanding an output voltage from the inverter circuit; a first arithmetic means (32) for receiving the voltage command from the voltage command value setting means (29) and a detection voltage from the 1/2 V (DC) detection circuit (31) to produce an error voltage; a second arithmetic means (33) for receiving the error voltage from the first arithmetic means (32) and a voltage command value from the voltage command value setting means (29) to produce a voltage corrected command value; and a PWM signal generator (12) for receiving the voltage corrected command value from the second arithmetic means (33) and a frequency command value commanding a frequency command value from the inverter circuit to create a PWM signal for driving the inverter circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile