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:
Oct. 25, 2011
Filed:
Feb. 25, 2009
Yasushi Kojima, Utsunomiya, JP;
Naoyuki Mimatsu, Utsunomiya, JP;
Seigo Murashige, Utsunomiya, JP;
Yutaka Asano, Utsunomiya, JP;
Yasushi Kojima, Utsunomiya, JP;
Naoyuki Mimatsu, Utsunomiya, JP;
Seigo Murashige, Utsunomiya, JP;
Yutaka Asano, Utsunomiya, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
When a DC/DC converter switches between a primary voltage control mode, a secondary voltage control mode, and a current limiting mode as operation modes, an I-term resetting processor outputs an I term depending on the duty ratio in the operation mode before being switched to a PID processor. The PID processor performs a PID control process based on the input I term. A drive duty ratio setter outputs a drive duty ratio immediately after the control mode switching, which is substantially equal to the duty ratio in the operation mode before being switched. As a result, the duty ratios in the operation mode before being switched and the operation mode after being switched are made continuous with respect to each other.