Invention Grant
- Patent Title: Driver circuit, driver apparatus, and image forming apparatus
- Patent Title (中): 驱动电路,驱动器装置和图像形成装置
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Application No.: US12926680Application Date: 2010-12-03
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Publication No.: US09048841B2Publication Date: 2015-06-02
- Inventor: Akira Nagumo
- Applicant: Akira Nagumo
- Applicant Address: JP Tokyo
- Assignee: Oki Data Corporation
- Current Assignee: Oki Data Corporation
- Current Assignee Address: JP Tokyo
- Agency: Rabin & Berdo, P.C.
- Priority: JP2009-276628 20091204
- Main IPC: G06K15/00
- IPC: G06K15/00 ; H03K17/725 ; G09G3/20 ; H03K17/79 ; H03K17/081

Abstract:
A driver circuit drives a plurality of groups of light emitting elements. Each element includes an anode, a cathode connected to the ground, and a gate that controls electrical conduction between the anode and cathode. A first driver section simultaneously drives the anodes of the elements of the plurality of groups of elements. A second driver section simultaneously drives the gates of the elements in a corresponding group of the plurality of groups. The second driver section includes a series connection of a first switch element and a voltage level shifter. The series connection is connected between a power supply and the group of gates. The second driver section further includes a second switch element connected between the group of gates and the ground.
Public/Granted literature
- US20110133789A1 Driver circuit, driver apparatus, and image forming apparatus Public/Granted day:2011-06-09
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