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BLI LDD 6000 Laser Driver
The driver is a linear current regulated power source intended for feeding one or several in
series laser diodes. Although it is primarily a CW current source, it also operates in
quasi-pulse mode. In this mode the pulses are created by changing the current by software
command. The transition time is 2 ms.
The variable compliance voltage minimizes heat generation
and maintains high wall plug efficiency.
Soft start, current limit, temperature protection, and disconnect
protection are among the features of the unit.
For driving the BLI LDD 6000 an external 30 VDC and 6 ADC
power supply is required.
| Name |
Value |
Comments |
| External Power Supply |
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| Voltage |
4 ÷ 20VDC |
Initial voltage setting of the power source for driving multiple diodes in series is
VPS = VD x N + 1
Where: VD is a typical voltage drop across the laser diode at maximum current;
N is the number of diodes connected in series.
The final voltage adjustment has to provide compliance voltage within 1 to 2 VDC at max. current. |
| Maximum Output current |
> 6 ADC
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| Control & Monitor |
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| Through RS232 port |
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Software driver for PC and user friendly GUI |
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| Output Measured (Data) |
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| Input voltage |
0 ÷ 20VDC |
Resolution: 0.1V |
| Compliance voltage |
0 ÷ 4 VDC |
Resolution: 0.1V |
| Output current |
0 ÷ 6ADC |
Resolution: 100mA |
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| Settings |
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| Output current |
0 ÷ 6ADC |
Resolution: 1÷2 mA |
| Output current limit |
1 ÷ 6ADC |
By software and 6.1 ADC by hardware |
| Output current / time profile |
Current: 0 to 6000mA; Time: 0 to 65 sec |
The setting allows to program up to five successive levels of current and duration of each level; function REPEAT allows to program periodic signals
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| Protections |
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| Over current |
6.1 ADC |
Latchable |
| Laser disconnect or bad contact |
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Latchable |
| Low Compliance Voltage |
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Latchable |
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| Connectors |
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| To external power supply |
PSC 1.5/3-M |
Phoenix Contact |
| To laser diode(s) |
DB 9 Female |
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| To PC |
DB 9 Male |
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