Light emitting diode driving device and optical transmission...

Details Light emitting diode driving device and optical transmission... Light emitting diode driving device and optical transmission...

2005-10-27

2009-06-02

Curs, Nathan M (Department: 2613)

Optical communications

Transmitter

Having particular modulation

C398S186000, C398S191000, C372S038020, C372S038070

Reexamination Certificate

active

07542684

ABSTRACT:
A light emitting diode driving device for driving an LED includes (i) a driving pulse current generating circuit for generating a driving current for the LED in accordance with a driving pulse signal supplied from outside and (ii) a differentiating circuit for generating a peaking current obtained by differentiating the driving pulse signal. A current that is equal to the sum of the driving current and the peaking current flows to the LED. The light emitting diode driving device further includes a peaking control circuit for controlling the magnitude of the peaking current generated from the differentiating circuit.

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