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. 12, 2014
Filed:
Jan. 07, 2010
Noriyuki Wada, Chiyoda-ku, JP;
Katsuyuki Sumimoto, Chiyoda-ku, JP;
Junya Sasaki, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A current detector of an inductive load includes: an inductive load; a switching elementconnected in series with the inductive load and controls an electric current to be carried through this inductive load by ON/OFF operation; a current circulating diodeconnected in parallel with the inductive load and circulates an electric current of the inductive load when the switching element is OFF; current detecting devicemaking a sampling in a cycle of a predetermined sampling period to detect an electric current to be carried through the switching element; and current correction devicemaking a correction with respect to an electric current value having been detected at the current detector, and in which the current correction devicechanges the correction rate based on DUTY of a pulse with which the switching element is brought in ON/OFF operation.