Invention Grant
- Patent Title: Current drive circuit
- Patent Title (中): 电流驱动电路
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Application No.: US12179673Application Date: 2008-07-25
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Publication No.: US08094695B2Publication Date: 2012-01-10
- Inventor: Makoto Sakaguchi
- Applicant: Makoto Sakaguchi
- Applicant Address: JP Kanagawa
- Assignee: Renesas Electronics Corporation
- Current Assignee: Renesas Electronics Corporation
- Current Assignee Address: JP Kanagawa
- Agency: Sughrue Mion, PLLC
- Priority: JP2007-199444 20070731
- Main IPC: H01S3/00
- IPC: H01S3/00

Abstract:
A current drive circuit according to the present invention includes: a first current source and a second current source (I101, I102); a first current mirror (CM103) for generating a first mirror current of a current (I2) generated by the second current source (I102); a second current mirror (CM106) for generating a second mirror current of the current (I2) generated by the second current source (I102); and a third current mirror (CM101) for generating a mirror current (IOUT1) of a current which is generated by the first current source (I101) 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 (LD101).
Public/Granted literature
- US20090034565A1 CURRENT DRIVE CIRCUIT Public/Granted day:2009-02-05
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