Drive device for a light-emitting component

Details Drive device for a light-emitting component Drive device for a light-emitting component

2005-10-18

2005-10-18

Vo, Tuyet Thi (Department: 2821)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

C327S067000, C327S068000, C315S158000, C315S291000

Reexamination Certificate

active

06956408

ABSTRACT:
A drive device for a light-emitting component including a reference source, which generates a current specification signal specifying a desired current through the light-emitting component, a current mirror circuit, which generates a current equal to a fraction of the actual current through the light-emitting component, and a regulating device having a first input and a second input, the first input being connected to the current mirror circuit and the second input being connected to the reference source. In this case, the regulating device generates a regulation signal that regulates the current through the light-emitting component in such a way that the deviation between the desired current and the actual current becomes minimal.

REFERENCES:
patent: 5982201 (1999-11-01), Brokaw et al.
patent: 6424204 (2002-07-01), Gul et al.
patent: 6661817 (2003-12-01), Ames et al.

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