Semiconductor laser driving circuit and optical head

Details Semiconductor laser driving circuit and optical head Semiconductor laser driving circuit and optical head

2005-11-29

2005-11-29

Harvey, Minsun Oh (Department: 2828)

Coherent light generators

Particular component circuitry

For driving or controlling laser

C372S038100, C372S038030, C372S038070, C372S050100

Reexamination Certificate

active

06970487

ABSTRACT:
A semiconductor laser driving circuit comprises a driving IC and a substrate on which the IC is mounted. The IC incorporates: a switching element for generating a driving signal; a high-potential power terminal and a low-potential power terminal for feeding supply voltage to the switching element; and a driving signal output terminal for outputting the driving signal generated at the switching element to an external device. These three terminals are disposed side by side at one of sides of a main body of the IC. The substrate incorporates three conductors to be connected to the three terminals. Two chip capacitors are disposed beside the one of the sides of the IC at which the three terminals are disposed. An end of each of the capacitors is connected to the high-potential power terminal while the other end is connected to the low-potential power terminal.

REFERENCES:
patent: 2004/0032888 (2004-02-01), Ferstl
patent: A 5-315686 (1993-11-01), None

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