Semiconductor light emitting element driving circuit

Details Semiconductor light emitting element driving circuit Semiconductor light emitting element driving circuit

1995-04-19

1998-04-14

Tran, Toan

Miscellaneous active electrical nonlinear devices, circuits, and

External effect

Light

327 65, 327108, 327432, H01L 3100, H03K 1760

Patent

active

057397171

ABSTRACT:
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.

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