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:
Jan. 28, 2025
Filed:
Sep. 04, 2020
Mitsubishi Electric Corporation, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A power converting apparatus includes a converter circuit converting an alternating-current voltage output from an alternating-current power supply into a direct-current voltage. The converter circuit includes unit converters. The power converting apparatus generates a reference duty on the basis of detection values of a current detector and a voltage detector and generates, on the basis of a result of comparison between the reference duty and a carrier signal, a pulse-width modulation signal for controlling the switching element. In each of the unit converters, the pulse-width modulation signal has one pulse within a carrier period and has pulses for the number of phases within a leveling period, the leveling period being obtained by multiplying the carrier period by the number of phases. The pulses for the number of phases within the leveling period have phases all different from each other in the respective carrier periods.