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Astral Driver For Sale - Boost, Buck, Buck-Boost, Linear, & Etc

deadshadow

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Great discussion!

About testing the "continuity" or short-testing using multimeter:
You need to be aware as the (usual) multimeter will supply about 3V when set into continuity test. This leads into powering up the driver and thus act the same way when you power it up using 3V battery, i.e the output voltage will go up and up until the IC dead (if there is no load at output)

Luckily, if you are using pretty good DMM, it will limit the current to the probe, so the driver will not draw high current (which will translate to big duty cycle or big Vout/Vin)


About the defective drivers, it seems the one that is defective is the capacitor. But i don't know for sure as i'm unable to reproduce/find the issue here.

I have also a customer in ebay reported two of five driver are defective, but he said after desoldering again and again, one of two defective is finally working.
The other defective one is drawing high current while giving no output. It seems he doesn't have multimeter as he don't know wheter the input or output which is shorted.

Apparently doing random testing is not enough i guess :yabbem:
i really apreciate your honesty,you even mentioned a report of an ebay user, the defective that is drawing high current while giving no output seems exactly like my case with the shorted capacitor.

i just read about the new Superdrive on the other thread,hope it will not take that long to release the package
 



jnrpop

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Bumpidy BUMP :bumpit: :D

Just a shout out again :wave: to Astralist for providing this forum and the hobby with some excellent products at very fair prices :worthy:
Thanks A :thanks:
 

paul1598419

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Dang. I put my Pico drivers away after the last event where I used several of them and now can't find them. I was sure I put them with my other high Vf diodes, but so far they have eluded me. I need one for ZRaffleticket's 428nm build. Well, the search goes on. I did find my copper and aluminum heat sinks I had lost during my PWM controller build for another member here. :thinking:
 

BowtieGuy

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Speaking of Pico drivers, I just had a chance to try out my first one yesterday on the 487nm diode that I got from you, Paul. :yh:

It seems to work perfectly, I only powered it up for a few seconds to verify that it worked and the diode was ok; as it is still only in the 12mm module.

One thing that I noticed right away, was how nice the pot felt when adjusting it, compared to the pots on the blitz-linear drivers; it wasn't quite linear, but close enough that it only took about three adjustments to get it where I wanted it.
I've only used the one Pico driver, but so far these seem to be very nice drivers!
 
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paul1598419

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I think so too, Jeff. Unfortunately, there are three of them playing "hide and seek" with me. And so far, the drivers are winning. :(
 

Coonie

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Astralist, could you possibly make round driver versions for these drivers? Diameter size 17mm?
 

paul1598419

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I'm certain he could, but it will likely not happen because there isn't enough demand for those drivers over the ones he has made in the past. It would be quite expensive to redesign and have them built in numbers that he could offer for sale considering the lack of people wanting these kinds of drivers now.
 

Coonie

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Yes of course he can. My question was if he would and that's something only he can answer.
I'm not sure where you got the idea where the demand is low but I plan on starting a little store so I need them but thanks for your opinion anyway.
 




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