Pulsed Laser Diode Driver LDD1200-150A-QCW
The laser diode driver (LDD) is designed to feed a semiconductor laser emitter with a desired pulsed current (QCW mode). The unit is used in pulsed diode-pumped laser systems.
Please refer to the specification below or contact us for more details.
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Signal Inputs / Outputs
- VMON – Output voltage monitor. Analog output. 0…10 V = 0…250 V out
- IMON – Output current monitor. Analog output. 0…10 V = 0…150 A out
- GNDA – Analog ground
- GND – Digital ground
- IN_MOD – Pulse control. Digital input. TTL high = On; TTL low = Off
- ENABLE – Enable digital input. High (+2…+15 V) = Run; Low (< 0.8 V) = Off
- ERROR1 – Over-heating indicator. Open collector digital output. Connect to GND = Error
- INTLOCK – Interlock digital input. Open = off; connect to GNDI = Run
- ERROR2 – Over-current, over-voltage indicator. Open collector digital output. Connect to GND = Error
- READY – Signal of readiness of LDD. Open collector digital output. Connect to GND = LDD is ready
- IPROG – Output current set point. Analog input. 0…10 V = 0…150 A out
- +15VPI – Auxiliary voltage outputs +15 V (current ≤ 100 mA)
General Specifications
- Overall dimensions – 277 * 172 * 107 mm
- Ambient temperature 0 … 45 0C
- Air cooling
IN_MOD voltage
Output current (10 V – 150 A)
Fig. 1
The LDD1200-150А-QCW can be powered by AC/DC converters with output voltage of up to 225V and limitation of output current at 7...10A.The energy built up in the load during a pulse is accumulated in a 24µF capacitor bank on board the LDD1200-150А-QCW.For low frequency and longer pulse length operation the LDD1200-150А-QCW can be packaged with additional 40µF capacitors to be connected in parallel to a AC/DC converter output. See Fig. 2 for the relationship of additionally required capacitance to pulse length and LDD output voltage at max output current (@ 1Hz repetition rate).
Fig. 2
Integrated in the following systems:
- I2D-140-40YAG
- I2D-140-50YAG
- I2D-110-60YAG
- I2D-110-50YAG
- I18-70-80YAG
- I41-120- 90YAGSupply options:
- laser diode driver complete with AC power supply system
- laser diode driver complete with DC power supply system
- rack-mounted versionSpecification
- Pulse rate * (Fp) – 0…1000 Hz
- Pulse duration * (Tp) – 0.1…100 ms
- Maximum output pulse current * (Io) – ≤ 150 A (at maximum output voltage see fig. 1)
- Average output power * (Pa) – ≤ 1200 W
- Maximum output voltage * (Vo) – 160 V (at supply voltage – 200 V)
- Supply voltage – 160…225 V
- Rise/Fall time – < 20 us (at Rload ≤ 1 Ohm)
- Current regulation – < 1 % of maximum output current
- Output current monitor – 62.5 mV/A
- Output voltage monitor – 40 mV/V
* Values are limited by average power: Fp · Tp · Io · Vo = Pa