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:
Jan. 10, 2012
Filed:
Jul. 25, 2008
Makoto Sakaguchi, Kanagawa, JP;
Makoto Sakaguchi, Kanagawa, JP;
Renesas Electronics Corporation, Kanagawa, JP;
Abstract
A current drive circuit according to the present invention includes: a first current source and a second current source (I, I); a first current mirror (CM) for generating a first mirror current of a current (I) generated by the second current source (I); a second current mirror (CM) for generating a second mirror current of the current (I) generated by the second current source (I); and a third current mirror (CM) for generating a mirror current (I) of a current which is generated by the first current source (I) and which is corrected according to a difference between the first mirror current and the second mirror current, to supply the current to a load (LD).