| 摘要 |
<p>A semiconductor light emitting element driving circuit for driving a light emitting element, comprises a bipolar transistor, a base of which is applied with a control signal for driving the light emitting element, and which, in response to the control signal, drives the light emitting element by flowing a current between an emitter and a collector, and a gate insulated transistor which operates as a constant current source connected to the bipolar transistor. <IMAGE></p> |
