Driving circuit for and semiconductor device for driving...

Details Driving circuit for and semiconductor device for driving... Driving circuit for and semiconductor device for driving...

2008-05-13

2008-05-13

Rodriguez, Armando (Department: 2828)

Coherent light generators

Particular component circuitry

For driving or controlling laser

C372S038030, C372S038070

Reexamination Certificate

active

07372882

ABSTRACT:
A driving circuit supplies a suppression current (I4) which reduces a decrease in a driving current (Idrive) immediately after occurrence of an overshoot at the time of the rise of the driving current (Idrive) to a laser diode (1). The driving circuit draws a suppression current (I5) which reduces an increase in the driving current (Idrive) immediately after occurrence of an undershoot at the time of the fall of the driving current (Idrive) from the driving current (Idrive).

REFERENCES:
patent: 2005/0069002 (2005-03-01), Senga et al.
patent: 2005/0123013 (2005-06-01), Nishimura
patent: 3-235385 (1991-10-01), None
patent: 5-218542 (1993-08-01), None
patent: 2000-208864 (2000-07-01), None

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