FlexMod P3 Analog/TTL Laser Diode Driver

[jayrob]

Need these!!!

PM sent drlava...

[Tnt]

I need these also - seems no one is making or selling these analog drivers anymore.

[spoutnikal]

Andrew, to date, I have not yet received a FlexMod P3 on three ordered and paid and no 3 laser orb also ordered and paid for, all pre-order. (Paul Lortiois 308 Avenue Brugmann, 1180 Brussels, Belgium)

[Galvonaut]

Andrew, to date, I have not yet received a FlexMod P3 on three ordered and paid and no 3 laser orb also ordered and paid for, all pre-order.

I would recommend removing your address from the interweb spoutnikal.

Andrew has a day job that keeps his pretty busy so there can be a delay in his responses.

Keith

[edit] Thanks for pointing out that I quoted spoutnikal's address cmb [/edit]

[varesa]

I have recently got myself a Flexmod P3, but I am unable to get it to work. I would appreciate if you could help me find the problem, as I'd rather fix it myself and possibly order parts from digikey than arrange a slow return/repair/new shipping -chain.

I have tried following the instructions. Right now I have the GND-V+ connected to a 9V lab supply, the interlock connected to the same +9V so that the red led turns off and the modulation wire to GND. I have wired the output to my DMM. The problem is that I get no output (even if I tweak the 0-bias pot). Mine does not have the big 0.2 Ohm shunt resistor, so it's an more-smd version?

Do you have any ideas on what to look for / probe?

[swamidog]

Can you post a picture?

I have recently got myself a Flexmod P3, but I am unable to get it to work. I would appreciate if you could help me find the problem, as I'd rather fix it myself and possibly order parts from digikey than arrange a slow return/repair/new shipping -chain.

I have tried following the instructions. Right now I have the GND-V+ connected to a 9V lab supply, the interlock connected to the same +9V so that the red led turns off and the modulation wire to GND. I have wired the output to my DMM. The problem is that I get no output (even if I tweak the 0-bias pot). Mine does not have the big 0.2 Ohm shunt resistor, so it's an more-smd version?

Do you have any ideas on what to look for / probe?

[polishedball]

Where did this come from, I have never scene one without the large resistor.

I sent an email to drlava on my issue, maybe someone else can help. I have the beam suppression version is the a way to change out the supplied resistors r to change suppression from .1v to .2v? I have some ADATs that have a DC offset that causes the glow to flicker on and off not be suppressed.

John

I have recently got myself a Flexmod P3, but I am unable to get it to work. I would appreciate if you could help me find the problem, as I'd rather fix it myself and possibly order parts from digikey than arrange a slow return/repair/new shipping -chain.

I have tried following the instructions. Right now I have the GND-V+ connected to a 9V lab supply, the interlock connected to the same +9V so that the red led turns off and the modulation wire to GND. I have wired the output to my DMM. The problem is that I get no output (even if I tweak the 0-bias pot). Mine does not have the big 0.2 Ohm shunt resistor, so it's an more-smd version?

Do you have any ideas on what to look for / probe?

[varesa]

Here is a picture, although partially obstructed by the wires:
https://dl.dropboxusercontent.com/u/...2000.21.42.jpg

I got it from Illumination Supply (https://illuminationsupply.com/laser...ver-p-796.html)

[swamidog]

That's odd.. Where's the large current sensing resistor?

Here is a picture, although partially obstructed by the wires:
https://dl.dropboxusercontent.com/u/...2000.21.42.jpg

I got it from Illumination Supply (https://illuminationsupply.com/laser...ver-p-796.html)

[varesa]

That's odd.. Where's the large current sensing resistor?

I'd like to know that too. Maybe it really is missing a part?