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FrozenGate by Avery

The best DIY driver circuit

S

saleenman

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Aug 5, 2011
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Hi,

I just ordered this and I am currently going off of this tutorial for my driver. I want to know if it is the best design for a DIY driver, or if there are any other better designs/tutorials out there to power the diode I purchased. Also I am having trouble finding inexpensive laser safety goggles that are designed for a 405nm.

Thanks!
 





A DDL drivers work fine, and are generally the easiest to build. The only downside is that you need a host large enough to accommodate all the parts, and they are linear buck drivers, so they don't work with single li-ion builds. The output filter cap and the reverse polarity protection diode in actuality aren't necessary, though if you have room in your build, they're worth adding.
 
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I am making a portable laser in a radio shack 4x2x1 box. It have made the driver according to ROG8811's tutorial. and it fits inside of the box. I now just need to find some <$20 laser goggles for 405nm.
 
qumefox said:
...The output filter cap and the reverse polarity protection diode in actuality aren't necessary, though if you have room in your build, they're worth adding.
Click to expand...

Unless you're building a low-dropout IC based DDL circuit. Then you definitely need the output cap for stability.
 
Nope. Not running it off batteries at least. The capacitor on the output is merely to eliminate noise and ripple.. Neither of which your really going to have using batteries and a lm317. The amount of dropout really has nothing to do with it. The capacitor is just a filter, nothing else. And if there's nothing to filter, it can be omitted without changing anything.

If you were trying to run the DDL off an unregulated powersupply like a wallwart.. then yes.. You would need the filtering. But not operating it off batteries.
 
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That's certainly an interesting design. Looks like a boost converter capable of 5.5V and between 1.5 and 2A maximum?
 
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That boost driver seems interesting. How complicated would it be to build?
 
Not quite. How the circuit is designed determines the maximum power handling capability. What the switch is rated at is just an absolute maximum. Capabilities in real world applications are generally 40-50% of the switch maximum unless your using a circuit with large traces and very beefy components.. Which you won't be if you expect it to fit in the size host you'd expecting to be using with a single li-ion.

And saleenman.. Here. I believe this will open it. http://www.abacom-online.de/uk/html/sprint-layout.html and I think they have a free viewer. I think it's the layout for the driver he used in his laser in this thread. http://laserpointerforums.com/f65/445nm-laser-abyz-65910.html

piferal said:
More, 4A.

It can deliver 1A and 5V output, with an input at only 1,8V

input voltage 1.8 to 5.5

Here you can download the datasheet:

http://www.ic-on-line.cn/download.p...2D9CFC2D72F3979&file=0034\tps61032_262939.pdf
Click to expand...
 
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saleenman said:
How do I open the .LAY file?
Click to expand...

use program SprintLayot 5.0

qumefox said:
Not quite. How the circuit is designed determines the maximum power handling capability. What the switch is rated at is just an absolute maximum. Capabilities in real world applications are generally 40-50% of the switch maximum unless your using a circuit with large traces and very beefy components.. Which you won't be if you expect it to fit in the size host you'd expecting to be using with a single li-ion.

And saleenman.. Here. I believe this will open it. Sprint-Layout and I think they have a free viewer. I think it's the layout for the driver he used in his laser in this thread. http://laserpointerforums.com/f65/445nm-laser-abyz-65910.html
Click to expand...

no, in that laser I used ZXSC400(I wrote at the beginning of the theme). Driver, which I proposed here, I use in another 445nm laser. its size 13х18х12mm:
 

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