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djozz
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Is it correct that at the moment no BLF20DD is available at Oshpark? (the link in the OP does not go anywhere anymore).

I would have liked to order one (=3) for a UF LZZ15 mod in the planning.

Werner
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djozz
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Thanks Werner!

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djozz wrote:

Is it correct that at the moment no BLF20DD is available at Oshpark? (the link in the OP does not go anywhere anymore).

I would have liked to order one (=3) for a UF LZZ15 mod in the planning.

You just need the one? I have one left I can stick in your package that’s shipping this week so you arnt waiting for ever. let me know if you want it.

 RIP  SPC Joey Riley, KIA 11/24/14. Now I am become death, the destroyer of worlds.

djozz
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Cereal_killer wrote:
djozz wrote:

Is it correct that at the moment no BLF20DD is available at Oshpark? (the link in the OP does not go anywhere anymore).

*I would have liked to order one* (=3) for a UF LZZ15 mod in the planning.

You just need the one? I have one left I can stick in your package that's shipping this week so you arnt waiting for ever. let me know if you want it.

WinkToo late, just ordered it, thanks for the offer though Beer . I just today ordered the light it is going in so the Oshpark order will probably be in earlier than the host, so there's no hurry Smile

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Yeah, the BLF direct drive drivers have been updated, the C1 has been relocated between the B+ and GND in order to eliminate the accidental boost effect of the cap and the diode when the power starts fluctuating/pulsing when the FET is turned off and on by the MCU…these revisions should eliminate the issue with dodgy mode selection and have the buffer resistors removed completely, also added off time caps on star 4 pin. I tweaked them up and Mattaus has reviewed and reposted all of them, the OP hasn’t been updated yet (also reset the “version/revision” number because they were getting squiffy)

Werner
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Are the eagle files anywhere available? Or is this closed source stuff?

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Werner wrote:
Are the eagle files anywhere available? Or is this closed source stuff?

I believe Mattaus has them

He retains “intellectual license” on them so might want to run it by him if you want a copy

djozz
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WarHawk-AVG wrote:
Yeah, the BLF direct drive drivers have been updated, the C1 has been relocated between the B+ and GND in order to eliminate the accidental boost effect of the cap and the diode when the power starts fluctuating/pulsing when the FET is turned off and on by the MCU...these revisions should eliminate the issue with dodgy mode selection and have the buffer resistors removed completely, also added off time caps on star 4 pin. I tweaked them up and Mattaus has reviewed and reposted all of them, the OP hasn't been updated yet (also reset the "version/revision" number because they were getting squiffy)

Ha, so I ordered the latest and greatest version Laughing . Thanks WH-AVG, Mataus, comfy!

Mattaus
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Werner wrote:
Are the eagle files anywhere available? Or is this closed source stuff?

I'll send you the files tonight. For some reason the latest revisions are not in my dropbox folder. Warhawk can probably send the last revisions he did as they are exactly what I used. I made no functional changes; all I did was add labeling to make them all V1.0

Feel free to do whatever you want with them. 100% open source. I started them, the community can do what they please with them.

- Matt

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Mattaus wrote:

Werner wrote:
Are the eagle files anywhere available? Or is this closed source stuff?

I’ll send you the files tonight. For some reason the latest revisions are not in my dropbox folder. Warhawk can probably send the last revisions he did as they are exactly what I used. I made no functional changes; all I did was add labeling to make them all V1.0

Feel free to do whatever you want with them. 100% open source. I started them, the community can do what they please with them.

- Matt

Here is all I worked on

https://www.dropbox.com/sh/cf07rngyitlwzu3/AADVXbp1l3n-J20txXg1weCAa

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Guys... in researching stuff for an unrelated driver I killed, I found it used a bunch of little SOT-23 FETs, the AO3400 (top marking is 'AO7T'). Digikey page: http://www.digikey.com/product-detail/en/AO3400A/785-1000-1-ND/1855942

Check out the datasheet. Compare it to the one we've been using on the 15DD: http://www.digikey.com/product-detail/en/IRLML2502TRPBF/IRLML2502PBFCT-N...

Higher voltage & current ratings, lower on-resistance, and an easier-to-drive gate?

WarHawk-AVG
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Same package size and solder footprint..nice!

Werner
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There are a lot of small FETs which are better but the 2502 was so cheap available from china so that it got a kind of rush.
If you order from a bigger distributor anyway than there is a newer version of the 2502 and IRLML6344TRPbF.

They “all” seem to have the same footprint, so a major investigation should find even some better ones.

Tom E
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comfychair wrote:

Guys... in researching stuff for an unrelated driver I killed, I found it used a bunch of little SOT-23 FETs, the AO3400 (top marking is 'AO7T'). Digikey page: http://www.digikey.com/product-detail/en/AO3400A/785-1000-1-ND/1855942

Check out the datasheet. Compare it to the one we've been using on the 15DD: http://www.digikey.com/product-detail/en/IRLML2502TRPBF/IRLML2502PBFCT-N...

Higher voltage & current ratings, lower on-resistance, and an easier-to-drive gate?

Who is going to be the guinea pig tester for this? Sounds all good... I'm using a BLF15DD now, and planning on more in those cheap little AA zoomies and it works well, not crazy amps because I don't want crazy amps in that little thing... I'm using a Sanyo 840 and get decent amps but still in the 2.n range. Just ordered the Efest IMR 700's from RMM, so expecting to get more amps. The 15 mm boards are great for little lights, but 5-7 amps is a little insane Tongue Out.

I wouldn't mind trying it I suppose. I can add qty 2 to the next DigiKey order at work here, hhmmm.....

ImA4Wheelr
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I thought I read that the OP has been updated for the latest DD versions.  I get 404 errors when I try to use the links.  Can someone link me to them or to the account holder's share page that is sharing them?

EDIT:  Ok, I misread.  The OP has not been updated.  So these are the latest and greatest right now.  Right?

Cereal_killer
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Tom E wrote:

comfychair wrote:

Guys… in researching stuff for an unrelated driver I killed, I found it used a bunch of little SOT-23 FETs, the AO3400 (top marking is ‘AO7T’). Digikey page: http://www.digikey.com/product-detail/en/AO3400A/785-1000-1-ND/1855942

Check out the datasheet. Compare it to the one we’ve been using on the 15DD: http://www.digikey.com/product-detail/en/IRLML2502TRPBF/IRLML2502PBFCT-N...

Higher voltage & current ratings, lower on-resistance, and an easier-to-drive gate?

Who is going to be the guinea pig tester for this? Sounds all good… I’m using a BLF15DD now, and planning on more in those cheap little AA zoomies and it works well, not crazy amps because I don’t want crazy amps in that little thing… I’m using a Sanyo 840 and get decent amps but still in the 2.n range. Just ordered the Efest IMR 700’s from RMM, so expecting to get more amps. The 15 mm boards are great for little lights, but 5-7 amps is a little insane Tongue Out.

I wouldn’t mind trying it I suppose. I can add qty 2 to the next DigiKey order at work here, hhmmm…..

Oh oh [raises hand], I volunteer! Just placed a digikey order sunday so I’ll get some on my next order!

 RIP  SPC Joey Riley, KIA 11/24/14. Now I am become death, the destroyer of worlds.

Rufusbduck
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ImA4Wheelr wrote:

I thought I read that the OP has been updated for the latest DD versions.  I get 404 errors when I try to use the links.  Can someone link me to them or to the account holder’s share page that is sharing them?


Sorry guys, I haven’t kept up with all the latest revisions. I’ll be updating the op this evening.

Three Tanna leaves to give him life, nine to give him movement. But what if he eats the whole bag?

Scott

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Rufusbduck wrote:
ImA4Wheelr wrote:

I thought I read that the OP has been updated for the latest DD versions.  I get 404 errors when I try to use the links.  Can someone link me to them or to the account holder’s share page that is sharing them?


Sorry guys, I haven’t kept up with all the latest revisions. I’ll be updating the op this evening.
In the meantime: https://oshpark.com/profiles/Mattaus

Still fine, still on a break. One day I’ll catch up with you folks! previous wight catchup Wink
list of my drivers & variants (A17DD, FET+1 stuff, WIP stuff, etc)

ImA4Wheelr
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No prob.  I just edited my post as I misread a post above.  I haven't been keeping up and now I'm a bet overwhelmed.

So these are the latest and greatest right now.  Right?  Just making sure because the say version 1.  The post I read sounds like the version numbering may have started over?

EDIT: Cross posted with wight.  Ok, so they are the latest.  Thanks guys.

Cereal_killer
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Yes the decision was made to use a standard numbering system from now on, no more rev vs. version vs. whatever else.

 RIP  SPC Joey Riley, KIA 11/24/14. Now I am become death, the destroyer of worlds.

DB Custom
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Makes me want to buy an SRK.

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I've removed the Medusa PCB for the time being. There is a repairable error in the ground plain. It can be fixed but I'll correct it properly this weekend and upload a fixed version later on.

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The Tiny10DD and Tiny12DD links are down. Are there revisions to replace them?

Three Tanna leaves to give him life, nine to give him movement. But what if he eats the whole bag?

Scott

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Not the linear boards but the DD versions are down.

Three Tanna leaves to give him life, nine to give him movement. But what if he eats the whole bag?

Scott

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Oh...they're not mine so I can't help sorry. I think they were WarHawk's?

Rufusbduck
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He’s sent me the links. I’ll update the op ASAP.

Three Tanna leaves to give him life, nine to give him movement. But what if he eats the whole bag?

Scott

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sorry…they are under my profile…Rufus is going to fix the links…I did a revision tweak like on the BLF17/20/22 and moved the C1 capacitor (for the mode change stability) and removed the load resistor

Sorry about that…

wight
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RBD – I have released my 22mm 16*7135 driver for F13 flashlights.

http://budgetlightforum.com/node/31930

https://oshpark.com/shared_projects/SMkMEXha

Still fine, still on a break. One day I’ll catch up with you folks! previous wight catchup Wink
list of my drivers & variants (A17DD, FET+1 stuff, WIP stuff, etc)

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