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FS: Jibs Linear Drivers

jib77

jib77

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Re: FS: LM1117 Based Linear Driver - 1.3A Fixed

steviedezie said:
cool thanks for having me in line jib, cant wait till that batch is ready. although i wanted to know as they are stock, are the resistors in parallel or in series? I have only 1W smd resistors in small values, so if they are in parallel it would help to keep them thermally controlled (since you use 2w resistors).
Click to expand...

They are parallel.
 





Solder Blob

Solder Blob

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Re: FS: LM1117 Based Linear Driver - 1.3A Fixed

@ jib77
I'd like to buy two of them. Thanx
 
viperx1101

viperx1101

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Re: FS: LM1117 Based Linear Driver - 1.3A Fixed

Hey jib, I am very interesting in getting a few of these drivers, quick question though.

In the OP, you stated that the Minimum Vin is 6V (4V load), so does that mean I can use a 18650 4.2 volt cause of the 4V load? But I am guessing and am pretty sure that the minimum Vin is the 6V so I would have to use two CR123 in a series or anything with a Vin inbetween 6V and 9V.

If this is true, let me know.

If it is possible to lower the minimum Vin, also please let me know!!!

Thanks.
 
Kenom

Kenom

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Re: FS: LM1117 Based Linear Driver - 1.3A Fixed

You will need to use 2 cr123's with this. The 18650 will provide 4.2V only when it's freshly charged and only for a few seconds. As soon as you put a load on it, the voltage is going to drop down to it's 3.6 voltage.

I am curious how many of these you have left from the mid march batch.
 
daguin

daguin

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Re: FS: LM1117 Based Linear Driver - 1.3A Fixed

My drivers arrived today.

Thanks

Peace,
dave
 
jib77

jib77

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Re: FS: LM1117 Based Linear Driver - 1.3A Fixed

Solder Blob said:
@ jib77
I'd like to buy two of them. Thanx
Click to expand...

Added you to list.

viperx1101 said:
Hey jib, I am very interesting in getting a few of these drivers, quick question though.

In the OP, you stated that the Minimum Vin is 6V (4V load), so does that mean I can use a 18650 4.2 volt cause of the 4V load? But I am guessing and am pretty sure that the minimum Vin is the 6V so I would have to use two CR123 in a series or anything with a Vin inbetween 6V and 9V.

If this is true, let me know.

If it is possible to lower the minimum Vin, also please let me know!!!

Thanks.
Click to expand...

I would say 6V is the minimum you need for a 445nm diode at 4.7V. That only leaves about 1.3V for regulator overhead. Extrion was able to power a red as-is with 3xAAA NiMH @ 400mA.

Kenom said:
I am curious how many of these you have left from the mid march batch.
Click to expand...

Looks like 13 available so far.

daguin said:
My drivers arrived today.

Thanks

Peace,
dave
Click to expand...

Excellente!
 
Kenom

Kenom

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Re: FS: LM1117 Based Linear Driver - 1.3A Fixed

DSC00072.JPG

DSC00073.JPG


This 445nm puts out 1.2W pretty stable off 2 cr123's
 
danefex

danefex

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Re: FS: LM1117 Based Linear Driver - 1.3A Fixed

...Love the heatsinks on the driver Kenom, awesome config for saving space too! Can't wait to see the final product :) :)
 
jib77

jib77

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Re: FS: LM1117 Based Linear Driver - 1.3A Fixed

Nice! I'm digging the copper. I was thinking of getting some of those heatsinks next time I place a DX order.
 
Kenom

Kenom

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Re: FS: LM1117 Based Linear Driver - 1.3A Fixed

works great too. Cut it in half and your set. I'm debating if I should get rid of the sticky stuff and place it with arctic silver epoxy or just leave it as is. The heatsinks don't seem to get that warm.. The head of the Kryton does tho!
 
danefex

danefex

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Re: FS: LM1117 Based Linear Driver - 1.3A Fixed

what's the sticky stuff? I only know arctic silver & pyrowire when working at these levels, nothing but the best :beer:
 
viperx1101

viperx1101

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Re: FS: LM1117 Based Linear Driver - 1.3A Fixed

jib77 said:
Nice! I'm digging the copper. I was thinking of getting some of those heatsinks next time I place a DX order.
Click to expand...

Are you saying that those HS are available from DX? In that size other than ken cutting one if half to have the correct size for the driver to be heat sinked?

I am going to search DX now, but in case I don't find it, could someone who knows what this Heat sink is actually called on DX post that or a link?

Thanks ahead of time!!!
 
B

bhwollen

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Re: FS: LM1117 Based Linear Driver - 1.3A Fixed

$5.06 - Pure Copper PC Memory Heat Spreader (8-Pieces) - Hardware Parts
Glad to help :evil:
viperx1101 said:
Are you saying that those HS are available from DX? In that size other than ken cutting one if half to have the correct size for the driver to be heat sinked?

I am going to search DX now, but in case I don't find it, could someone who knows what this Heat sink is actually called on DX post that or a link?

Thanks ahead of time!!!
Click to expand...
 
viperx1101

viperx1101

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Re: FS: LM1117 Based Linear Driver - 1.3A Fixed

Thanks for the link, I wasn't able to fine it.

So this was very helpful!

+1 rep!
 
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