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OPEN SOURCE: "CC-Boost" - 2.4 Amp boost driver - RC1

rhd said:
That should be a linear driver, and I think those projects exist on the forum :)
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The P3 has a few features that makes it a little harder to DIY than a regular linear driver, such as the 7s start up delay and interlock for FDA compliance.

rhd said:
EDIT: I think someone should make a DIY bench supply circuit that can supply really high currents, from a LiPo source (instead of AC), with both coarse and fine voltage and current adjustment knobs.
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This project is still ongoing - http://laserpointerforums.com/f39/feeler-high-current-psu-pcbs-83429.html#post1204631
If you would like to take a stab at it let me know, I've got all the design files and it's 80% done.
 
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KRNAZNBOY said:
Yo just my opinion here, but we IMO, and this is completely up for debate, we need a new high power LAB style driver. No regard to size, just something that you can bolt to a heatsink, and that has a 12-turn pot for precision current setting. Basically, FlexmodP3 but for cheap and cooler!

Just a suggestion!
-matt
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rhd said:
That should be a linear driver, and I think those projects exist on the forum :)
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Why yes, they do. :rolleyes:
Would a 9-turn pot be enough?

http://laserpointerforums.com/f67/line-drive-high-current-linear-driver-90624.html

rhd said:
EDIT: I think someone should make a DIY bench supply circuit that can supply really high currents, from a LiPo source (instead of AC), with both coarse and fine voltage and current adjustment knobs.
Click to expand...

That would be excellent. Something for
scope testing drivers without the need for
an isolated probe
 
petters said:
I'll take on that challenge, starting now :)
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Awesome...will it be open source, though? Also, what kind of foot print are you thinking?

ARG said:
This project is still ongoing - http://laserpointerforums.com/f39/feeler-high-current-psu-pcbs-83429.html#post1204631
If you would like to take a stab at it let me know, I've got all the design files and it's 80% done.
Click to expand...

That would be amazing...however, I think RHD meant an adjustable power supply that would run off a few 18650's or something of the sort. Either would be fantastic, really- I can see a few potential problems with a strictly battery driven power supply though, and a full AC input would be more work to assemble, but would be well worth it in my opinion.
 
crazyspaz said:
That would be amazing...however, I think RHD meant an adjustable power supply that would run off a few 18650's or something of the sort. Either would be fantastic, really- I can see a few potential problems with a strictly battery driven power supply though, and a full AC input would be more work to assemble, but would be well worth it in my opinion.
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That's what it is, an adjustable power supply. It can be powered from 3x 18650's, it takes 12V input.
 
I did a quick fork of the circuit I came up with for (eventually) the next version of the CC-Boost. I thought it would be fun to see what could be done within the same exact footprint as the FlexDrive (12x9). Here's what I came up with. It's still 2.4 Amp capable (though not 3.5A+ capable like we were targeting for the next revision generally).

I haven't ordered any. The next version is still at the imaginary driver stage, and I probably won't test it any time soon. Just a tease.

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It would be adjustable on a really wide range, not by my computer so ill need to check back
 
rhd said:
The next version is still at the imaginary driver stage, and I probably won't test it any time soon.
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:crackup: I have lots of imaginary drives I'm working on. I even have imaginary drives on order, and a lot of drives I imagined would be what the fleabay listing stated they were but weren't.

Yours actually looks a lot closer to reality than any of the above I listed. :)

I used one of the cc-boost drives in a 445nm build last week for a friends birthday present. It was in an extra Zero Lasers host I had laying around with a big aluminum heat sink. I just thermal epoxied it to the back of the heat sink. It worked great ! If anything goes wrong with it I'm sure I'll hear about it. I'm not worried about the drive, just the fact I assembled the drive worries me. :crackup:

Soon as I have time I'm going to parallel a couple of them and see what happens. :)
 
I'm thinking of ordering parts to test out two initial layouts of the next planned fork that could eventually become an RC2 (a 3.5A boost of similar size, and a 2.4A boost with the same dimensions as a FlexDrive)

However, is anyone actually using these open source designs?

My DigiKey costs are getting up there, so I don't want to pursue this if nobody is making use of it.
 
I know adam1 made a run of them and I plan on making some soon as well...just the whole money thing, or rather lack there of.
 
rhd said:
However, is anyone actually using these open source designs?
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So far I've only done three builds using the drive. But they were builds I wouldn't have been able to complete at the present time if it weren't for this drive.

My building has slowed because I've been working on my house. I think the drive project is a worthwhile one. You already know I appreciate all you have done.

I also feel you shouldn't absorb the cost of designing them and give them away. I have no problem chipping in a few bucks to help further the cause. Whether it ends up a working design or the time frame is irrelevant. It's just part of research and development.

Maybe others will chime in with their thoughts. :beer:
 
DING

3 of the RC1 just came out of the oven and
are done on the first side. One of them is
going towards a future 9mm build.
 
I bought three of them from adam1 and I plan on making some when I have time. A flexdrive sized boost would be perfect. I really appreciate these design threads. They are very informative. I'm sure the forum could help out financially if needed, or I would suggest selling some yourself for a profit. From what I can tell, these can easily compete with the x drives, especially if the supply was reliable. Either way, thank you for doing this, rhd, I really appreciate it and I'm sure we all do.
 
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