Simpledrive (5) issues.

[Finale]

Have you tried contacting him about this issue?

I haven't and sure, I can. But what do you think he can say other than verify these diodes are these diodes?

...or none of the above?

None. I'm actually close to Vladimir, if 300 miles is close.

[Bbe]

You can send one preconfigured setup to me, I'll find out what's the matter. The last few weeks we are dealing with mysticism, if find a sponsor, then can produce a "Lost Power" TV show

None. I'm actually close to Vladimir, if 300 miles is close.

RU in RU

R U in US or EU?

[catalanjo]

That definitely sound like your best option. ........please post results of diagnostic check...this is fascinating !
Cheers

[Finale]

Thanks for the offer.
A part of me wants to do that and send the PSU, drivers and diodes with their mounts but on the other hand shipping to you will take about 7 business days at best, then about 7 days back, plus the time needed to diagnose the problem. This is disregarding the cost of shipping.
I wanted to finish this build soon and this will set me back about 3 weeks. Er, let me think about this for a little and make sure I can't figure out the problem.

[Finale]

Oh, I know what we can do! I don't know why I didn't think of this sooner. I have some spare reds and drivers, I'll build a module for testing and send it to you by EMS. Should arrive in 7 days. You can then check if your LPM shows the same results or not. If it turns out my LPM sensor is damaged, I'll be able to just continue with my build and have an estimated power for my projector by just setting the voltages/current, before you send that back to me. And I'll finish the build before a deadline.
Then I'll save up for a replacement sensor for my LPM.
That, or you'll get the same low power results and we'll dig deeper in the rabbit hole.

Does this sound good? You can PM me your shipping address if so.
I'll just send the housing with the diode in it and the collimator + the driver and all the cables, without the heatsinks and PSU to save space.

[Bbe]

PM sent..........

[Finale]

Okay, I sent one of my NUBM07 didoes and its driver preconfigured to Bbe.
With my LPM I get only about 2W (1.943) power at 2.6A. DTR gets around 3.3W.
I hope this will answer if my LPM sensor is damaged or I somehow always get the worst diodes or drivers from the batch.
Let us know when you get them and have a time to test.

PS. Yes, I know that 2.6A is pushing it too much, it's just for short duration test and was the peak of the power output for me with this diode after which it was dropping power.
Keep in mind I have another NUBM07 already in the same housing so we can do tests at different currents and compare those results instead.

[Finale]

Bbe should have them any day now...

[Bbe]

The parcel is in my hands. Unpacking and results tomorrow...

[Bbe]

So, I opened the package I found 2 drivers and a diode in a brass mount.

The first driver who did a smoke and then died like you said - I found a damaged fuse (0 Ohm resistor) on it and it was a source of smoke. All other components were in good condition. I re-soldered the fuse and the driver works again like new. I have read 745mA at output (at 5V modulation signal), it's probably your pre-configured setting?...
Why did this happen? Only 2 versions in view: Reverse polarity or a short circuit somewhere on the circuit board. I did not find any traces of sparks on the pcb and tend to the fact that you just mistook the polarity when connecting a power source. In any case, the driver is restored and works fine again.

The second driver - I have read 2.5A "from the box" at 5V modulation signal. Your diode generate about 2100mW of optical power at this current. When I set 4A I got about 3.4W output, but power is falling rapidly - up to 2.8W in 6-8 seconds. 95% this is due to the diode overheating - poor thermal junction to the mount + unknown brass. 5% - the diode was extracted from the used projector.

I suspect that the diode was partially damaged due to overheating because the threshold current is too high for it - about 450mA@25C

Now we can close all speculation about driver issues - they work as expected. To confirm this, I repeated these experiments with a lab current source.
Most likely your laserbee is also close to true measurements. The fact that you could not read 3.4W at 4A is related to a laserbee sensor (based on TEC module) has a very high inertia when registering optical power.