Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hisao Kunitani0
Tetsuro Oomori0
Noriko Kaku0
Hiroshi Kojima0
Makoto Mizuki0
Date of Patent
December 28, 2010
0Patent Application Number
116521400
Date Filed
January 11, 2007
0Patent Primary Examiner
Patent abstract
The current drive device of the present invention includes: a current source transistor for allowing a preset drive current to flow to a drain; a cascode transistor cascode-connected to the current source transistor; a switch circuit for switching ON/OFF flow of the drive current through the drain of the cascode transistor and a circuit to be driven; and a bypass circuit for allowing the drive current to flow therethrough to bypass the switch circuit and the circuit to be driven when the switch circuit is OFF.
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