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:
Aug. 04, 2026
Filed:
Feb. 15, 2022
Hitachi Astemo, Ltd., Hitachinaka, JP;
Toshiyuki Ajima, Tokyo, JP;
Shun Taniguchi, Tokyo, JP;
Noriya Nakao, Tokyo, JP;
Takuya Nemoto, Hitachinaka, JP;
Kosei Goto, Hitachinaka, JP;
Kentaro Matsuo, Hitachinaka, JP;
Keiji Kadota, Hitachinaka, JP;
Hitachi Astemo, Ltd., Hitachinaka, JP;
Abstract
An inverter control device includes a pulse width modulation (PWM) pulse generation unit that generates a PWM pulse signal for controlling an inverter in every predetermined control cycle, wherein the PWM pulse generation unit generates the PWM pulse signal to meet a pulse generation condition that at least three or more pulses exist in one cycle of a fundamental of an output voltage from the inverter and a state of the PWM pulse signal is switched between on and off at a zero crossing point at which the fundamental changes across zero while generating a PWM pulse signal asynchronous with the control cycle.