Invention Grant
US09048841B2 Driver circuit, driver apparatus, and image forming apparatus 有权
驱动电路,驱动器装置和图像形成装置

Driver circuit, driver apparatus, and image forming apparatus
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.
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