Driving circuit for laser diode

Details Driving circuit for laser diode Driving circuit for laser diode

1988-02-08

1989-06-06

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

372 29, 372 31, G06F 1100

Patent

active

048374288

ABSTRACT:
A laser diode power supply that uses a variable voltage as an input driving signal to provide a programmable laser diode output control instead of a constant reference voltage. The power supply includes a detector that samples light emitted from the laser diode, a controllable power supply that is capable to be operated by CPU, a current - voltage converter and a differential amplifier to which the output of the former two devices are applied.

REFERENCES:
patent: 4158132 (1979-06-01), O'Dell
patent: 4580044 (1986-04-01), Hongo et al.
patent: 4592057 (1986-05-01), Comerford
patent: 4612671 (1986-09-01), Giles
patent: 4744087 (1988-05-01), Nicia
patent: 4771431 (1988-09-01), Nakazawa et al.

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