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. 10, 2025
Filed:
Dec. 17, 2021
Sanden Corporation, Isesaki, JP;
Yushi Araki, Isesaki, JP;
Tatsuki Kashihara, Isesaki, JP;
SANDEN CORPORATION, Isesaki, JP;
Abstract
The invention provides an inverter device which effectively cancels the generation of common mode noise associated with dead-time effects and misjudgement of the polarity of a phase current at switching in the case where a fluctuation in a neutral point potential of a motor is suppressed by canceling a change in a phase voltage with another change in the phase voltage. A phase voltage command operation unitof a control device includes a phase current prediction partwhich predicts a phase current at a switching timing of each phase, and a correction control partwhich corrects a switching operation so as to cancel a change in the phase voltage applied to the motor with another change in the phase voltage, based on the phase current of each phase at the switching timing predicted by the phase current prediction part