Invention Grant
- Patent Title: Constant current circuit
- Patent Title (中): 恒流电路
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Application No.: US11703734Application Date: 2007-02-08
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Publication No.: US07474145B2Publication Date: 2009-01-06
- Inventor: Takaaki Negoro
- Applicant: Takaaki Negoro
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Dickstein Shapiro LLP
- Priority: JP2006-031785 20060209
- Main IPC: G05F1/10
- IPC: G05F1/10 ; G05F3/02
Abstract:
A constant current circuit includes first and second depression type MOS transistors having drains connected to a high electric potential side; and first, second, and third enhanced type MOS transistors having sources connected to a low electric potential side.
Public/Granted literature
- US20070188216A1 Constant current circuit Public/Granted day:2007-08-16
Information query
IPC分类:
