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. 13, 2023
Filed:
Jul. 21, 2020
Sanden Holdings Corporation, Isesaki, JP;
Tatsuki Kashihara, Isesaki, JP;
SANDEN CORPORATION, Isesaki, JP;
Abstract
An inverter device is provided which is capable of effectively eliminating or suppressing common mode noise in consideration of the influence of a dead time by using the function of a PWM signal generating unit. A control deviceincludes a phase voltage command calculating unitwhich calculates three-phase modulation voltage command values for generating voltages to be applied to respective phases of a motor, and a PWM signal generating unitwhich, based on the three-phase modulation voltage command values and a single carrier signal, generates a PWM signal to PWM-control an inverter circuit. The PWM signal generating unitcorrects the three-phase modulation voltage command values output by the phase voltage command calculating unitto thereby cancel a change in the phase voltage applied to the motorby a change in another phase voltage.