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:
Feb. 27, 2024
Filed:
Jul. 07, 2021
Denso Corporation, Kariya, JP;
Seiji Iyasu, Nisshin, JP;
Yuichi Handa, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A controller includes first and second setting sections. The first setting section sets a first duty-cycle, which is a percentage of a switch-on time period of a drive switch in one switching-cycle, by peak current-mode control to control a reactor current to be a current-command value generated based on an AC-voltage value. The second setting section sets a second duty-cycle, which is the percentage of the switch-on time period of the drive switch in one switching-cycle, by average-current-mode control to control an average value of the reactor current to be the current-command value. The controller operates the drive switch at the first duty-cycle when an absolute value of the AC-voltage value is equal to or more than a threshold less than an amplitude of the AC-voltage value, and operates the drive switch at the second duty-cycle when the absolute value of the AC-voltage value is less than the threshold.