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. 16, 2025
Filed:
Jul. 28, 2021
Mitsubishi Electric Corporation, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A power converter including: a non-boost rectifier circuit that converts a first alternating-current voltage into a direct-current voltage; a reactor connected to the rectifier circuit; a capacitor that smooths a direct-current voltage; an inverter that is connected in parallel to the capacitor, converts the smoothed direct-current voltage into a second alternating-current voltage having desired voltage and frequency, and outputs the second alternating-current voltage to a motor; and a controller that controls an operation of the inverter. Capacitances of the reactor and the capacitor are set such that a resonance frequency of a filter circuit including the reactor and the capacitor is smaller than a first electrical angular frequency based on a voltage command when the controller controls an operation of the inverter such that the second alternating-current voltage is maximized in a range not causing overmodulation.