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FrozenGate by Avery

Feeler: 4 Mode 445 driver






When are these coming out? And how much will they cost?

(Sorry if these have been answered already)
 
They will come out when I get some samples. This company I'm working with is very slow. Cost should be around $20 for 10x in this GB after that when I sell them I will raise the price.
 
Is this a Normal Mode driver where


You turn it on, it comes on in strobe (is it High Strobe?), you click the button once it then switches to low/med/high each Click?

And if you turn it off for longer than 3 seconds on a mode your going to be able to turn it back on and it start up in that last mode of uses?

(EDIT: Do you Hold the button down Longer instead of click it to turn it off?)

And 20mmX 20mm square? that might be a little big... can you make it so it can fit most hosts?

If the answer is yes on all these I want a few as well
 
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It should have memory so if it is turned off and on withing 3 seconds then the mode will change. But longer then that and it will stay the same. The size is still unknown.
 
bhwollen said:
It should have memory so if it is turned off and on withing 3 seconds then the mode will change. But longer then that and it will stay the same. The size is still unknown.
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Subscribed.

It doesn't really matter, but I think the modes usually work the other way round, ie if it stays on for 3+ seconds then the mode will be the same when you turn it off and back on. The reason for this is that the micro controller loses all power when turned off, so it doesn't know how long it was off when it gets power again. Unless a capacitor is used to keep it powered for another couple of seconds when power is cut, but I doubt it will work that way as it is less precise and adds another component.
 
Count me in as interested for one once you get them and test one
 
Update to everyone, this was aborted because the size they were estimating was way to big. They are working on a boost drive with a settable range up to 1.8A though.
 
In the 1.8A driver there will be no modes. The size they were quoting was 50mm x 25mm.
 
I know this is late but I want to correct something DTR said earlier in the thread. Yes the NJG-18 drivers are CV, not CC, however he stated as input voltage dropped, so did output voltage. That was incorrect. The NJG-18 is a boost driver. The driver will try to maintain the same output voltage so long as the source can supply enough current to feed the driver. As as the battery voltage goes down, the current draw from it will increase to the maximum the battery can supply.. THEN the driver output will start to drop as well.

And the reason CV drivers aren't well suited to LD use is due to the steep I-V curve of the laser diodes. You get large changes in current draw for small changes in voltage. It just makes it hard to precisely set an output current, plus the fact that the current draw of a diode at a certain voltage will change depending on it's temperature as well.
 
qumefox said:
he stated as input voltage dropped, so did output voltage. That was incorrect.
Click to expand...

Well if I said that It was a typo. As the voltage drops the current drops to keep the voltage constant. Thanks for the correction as you are completely correct.:beer:

EDIT

I could only find this reference and it looks like I said it correctly. I could have been more descriptive and said when the input voltage drops the output current does as well.
DTR said:
When you adjust the pot you are setting the current based on the voltage you are putting in it at the time. In my case I set them with my bench supply set to 4.1V. As the voltage drops so does the current.:beer:
Click to expand...
 
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Yeah I was going to tell you it was post #27 if you wanted to go back and fix it. Wasn't trying to nitpick, or target you, only trying to keep the DIY related information as accurate as possible for the few people that still have an interested in DIY and aren't just 'OMG SELL ME BURNING LAZOR!!!!11!'

And actually output current will stay the same, not drop.. so long as you can feed the driver what it needs to be able to maintain it. It's only when the driver's power source hits it's current limit that the drivers output starts falling as the input voltage drops. It's the whole ohm's law thing. :p
 
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