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- May 15, 2018
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I'm fairly new to lasers but an old hand at electronics. I started working with lasers about 2 years ago and since then I've been hooked! I came up with this 4A laser driver recently and the one shown here is a prototype that I use with my laser engraver that is powered by a 3.5W NUBM06 laser. A 10A driver prototype is also in the works. If this is something you folks would be interested in, I can start making more.
Here are the specs:
Here are the specs:
- 4A max current out at 5.5V
- Max VIN is 75V (recommended Max VIN is 60V)
- Two modes of current adjustment - PWM and potentiometer. Suggested method is to set the max current limit using the pot and then use to the PWM to vary power output. PWM frequency can be between 400Hz to about 100KHz.
- Soft start of about 5ms.
- Cycle by cycle current limit with low-power and thermal shutdown
- 500KHz switching frequency
- Terminal tabs on the board to attach external current meters for continuous current readout.
- JST VH connectors for input and output rated at 10A.
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