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. 20, 2026
Filed:
Aug. 03, 2021
Sanden Corporation, Isesaki, JP;
Tatsuki Kashihara, Isesaki, JP;
Yushi Araki, Isesaki, JP;
SANDEN CORPORATION, Isesaki, JP;
Abstract
An inverter device is provided which is based on a discontinuous modulation method and makes it possible to further reduce common mode noise. A control deviceincludes a phase voltage command operation unitwhich calculates a continuous modulation voltage command value, an inter-line modulation operation unitwhich calculates a discontinuous modulation voltage command value which fixes an ON/OFF state of a switching element of one phase of an inverter circuitand modulates an ON/OFF state of switching elements of the other two phases, and a PWM signal generation unitwhich performs PWM control on the inverter circuit. The control device synchronizes switching timings of the switching elements of the two phases in which the ON/OFF state is modulated, and cancels out a change in a phase voltage applied to a motorby a change in another phase voltage.