Synrad Pulstar P100 Series, Operator'S Manual

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technical reference
3
9 Synrad Pulstar p100 operator’s manual
Controlling laser power
Table 3-2 Pulse frequency/duty cycle range
Input Frequency Duty Cycle Range
< 50 kHz 0% – 37.5%
50 – 75 kHz 0% – 31.5%
> 75 kHz 0% –25.0%
Pulstar’s
User I/O
PWM input consists of a high-speed optoisolator LED with a forward voltage drop (Vf)
of 1.5 VDC. The PWM input frequency can range from a single-shot up to 100 kHz. Table 3-3 provides
minimum, maximum, and nominal PWM signal specifications.
Table 3-3 PWM Command signal specifications
Laser State Minimum Nominal Maximum
Laser Off 0.0 VDC 0.0 VDC +0.8 VDC
Laser On +3.5 VDC (3 mA) +5.0 VDC +6.7 VDC (10 mA), continuous
Frequency Range Single-shot — — 100 kHz
Duty Cycle 0% — — 37.5%
1
1 Varies by pulse frequency. Refer to Table 3-2 for details.