High Power Laser Diode Driver Schematic

The lddhc series high power laser diode driver is a new family of oem laser diode drivers designed for the emerging high power laser diode industry.

High power laser diode driver schematic.

1 produce constant regulated voltage. To avoid this a limit circuit is included in the laser diode power supply. In this project laser diode driver circuit is developed. Too much current and the laser diode will blow.

Compact size is possible due to the low loss zero voltage switching inverter and incorporation of planar magnetics. They can work in two ways. As battery start giving supply it first flow through the ceramic capacitor 0 1uf. The ldd series is ideal for high power applications where economy is important and performance cannot be compromised.

2 produce constant current driven through the ld load. Too little current and the laser diode will not have sufficient power to turn on and operate. An active current limit circuit will disable the laser diode driver current. The ldd series is a new family of oem laser diode drivers designed for the emerging high power laser diode industry.

A high power laser diode driver is 5 amps and up to 100 s of amps in a cw mode. With output currents to 200amps the lddhc series high power laser diode driver is available in 3 power levels and a wide range of compliance voltages. The user determines the maximum setting and the output current is kept from exceeding that level. These are by no means standards just a generalization based on the author s experience in the laser diode controller world.

The second type is more easy to design and us. Depends on application laser chosen at different range nm nano meter wavelength and watts. For the driving of the laser diodes ld special drivers circuits are used. A driver circuit is a circuit which can limit appropriately the amount of current being fed into the laser diode so that it can function correctly.

Their are kw level drivers available in pulsed and qcw mode versions. The potentiometer 10k and resistor are used as the voltage limiting circuit connected with the adjustable pin1. Laser light amplification by stimulated emission of radiation and laser diodes are widely used in different domain applications it gives focused light ray in visible spectrum and laser diodes will perform good in regulated constant current. This capacitor is used to filtering high frequency noise from our dc source and gives to input pin3 of the lm317 voltage regulator ic.

Working of laser diode driver circuit.