Products

LDD-250 laser diode driver

LDD-250 laser diode driver
LDD-250 laser diode driver
LDD-250 laser diode driver 400 W

Applications

  • Laser diode driving

Features

  • Up to 400 W output power
  • Up to 100 A output current
  • Wide range of input voltages
  • 0.98 power factor correction (PFC) value
  • Low EMI and leakage current

The medium-power laser diode driver LDD-250 is a series of devices. It was designed to provide stable current by pulses or in continuous form to laser diodes, diode bars and stacks. Pulsed laser diodes drivers are able to deliver high peak power in short durations, which is useful for applications requiring precision and minimal thermal damage, such as medical procedures and material processing.

We offer several variants of LDD-250 with different maximum output power (Pmax could be 150, 250 or 400 W), maximum output current (Imax range is 5 … 100 A), maximum output voltage (Vmax≤ Pmax/ Imax), selected at the moment of order. For more detailed information see user manual.

Devices are in a case and easy to mount, they run on common 100‑240 V AC or 200‑240 V AC 50/60 Hz. So you don’t need any extra power supply for the driver.

An output current level can be programmed in working range by user applying a DC voltage to the respective pin. An operating frequency and pulse width are set by an external low voltage TTL signal from pulse generator. Base interface to control LDD is analogue (15 Pin “D”-Sub Female).

It is also possible to control the module through an additional external PCBs (sold separately), either stand-alone (ordering code – STA) with jumpers and trimpot or driven by a computer through RS‑232 interface (ordering code – RS232).

Laser diode driver module LDD-250 was designed to comply with IEC 60601-1 (safety) and IEC 60601-1-2 (EMC). Therefore, It is possible to use modules in different kinds of medical devices without any additional filtration and safety measures. At the same time for proven compliance to standards for a certain modification the certification procedure needs to be passed. This is possible on demand.

Input:

Voltage

200-240 V AC, 50/60 Hz
or 100-240 V AC, 50/60 Hz

Current

< 3 A

Output:


Maximum power ( Pmax)
150, 250 or 400 W


Maximum current (Imax)
selectable in range
5 … 75 A (LDD-150)

or 10 … 100 A (LDD-250 and LDD-400)


Maximum voltage (Vmax)
should be less thanPmax / Imax

Rise/fall time
< 1 ms (10% to 90% full current),
< 500 μs on request

Current regulation accuracy
< 1% of Imax

Current value error
< 1% of Imax

Current overshoot
< 1% of Imax

Efficiency
> 80%

Safety:

PFC value
> 0.98 (active)

Leakage current
< 150 μA

Safety approval (on request)
IEC60950, IEC60601-1

Case fault voltage
4000 VAC

EMC approval (on request)
IEC 60601-1-2 or EN 55011/CISPR 11

Interface:

Connector
15 Pin “D”-Sub Female

Current program
analog, 0-10 V

Current monitor
analog, 0-10 V

Voltage monitor
analog, 0-10 V

Environment:

Operating temperature
0 … +40 °C

Storage temperature
-20 … +60 °C

Humidity
0 … 90%, non-condensing

Other:

Size (LxWxH)
225x181x68 mm

Weight
1.8 kg

We offer these diode drivers in several modifications with different maximum output currents and voltages.

First of all maximum output power should be chosen (150, 250 or 400 W).
Then maximum output current should be selected in range of 10 … 100 A (5 … 75 A for 150 W).
Maximum output voltage should be chosen less than Pmax / Imax.

ldd-manual-en.pdf

Download user manual (0.8MB)