Invention Grant
- Patent Title: Drive circuit, light print head, and image forming apparatus
- Patent Title (中): 驱动电路，光打印头和图像形成装置
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Application No.: US13956552Application Date: 2013-08-01
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Publication No.: US08866866B2Publication Date: 2014-10-21
- Inventor: Akira Nagumo
- Applicant: Oki Data Corporation
- Applicant Address: JP Tokyo
- Assignee: Oki Data Corporation
- Current Assignee: Oki Data Corporation
- Current Assignee Address: JP Tokyo
- Agency: Kubotera & Associates, LLC
- Priority: JP2008-070473 20080318
- Main IPC: B41J2/435
- IPC: B41J2/435 ; B41J2/45 ; B41J2/47 ; G03G15/04 ; G03G15/043 ; H05B33/08
Abstract:
A drive circuit is provided for supplying a drive current to drive a plurality of driven elements. The drive circuit includes a switch circuit having an input terminal for receiving a drive signal alternately changing between an on state and an off state, and an output terminal connected to the driven elements; and a constant current circuit connected to the switch circuit for adjusting the drive current at a constant level. The constant current circuit is formed of a depletion type MOS transistor.
Public/Granted literature
- US20130315613A1 DRIVE CIRCUIT, LIGHT PRINT HEAD, AND IMAGE FORMING APPARATUS Public/Granted day:2013-11-28
Information query
IPC分类:
