Texas Avenger "TA" Driver series - Triple channel + Bistro or Narsil + Clicky or E-switch - The Ultimate open source driver!

1188 posts / 0 new
Last post
Texas_Ace
Texas_Ace's picture
Online
Last seen: 8 min 21 sec ago
Joined: 03/24/2016 - 07:44
Posts: 3568
Location: Everything is brighter in Texas

I figured that was the case, these little boards would fit into lots of small areas.

The Second Amendment is in place in case the politicians ignore the others.

Government is the great fiction, through which everybody endeavors to live at the expense of everybody else. -- Frederic Bastiat , French economist(1801-1850)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT

How I made a True integrating PVC sphere with no math involved

LightRider
LightRider's picture
Online
Last seen: 6 min 44 sec ago
Joined: 08/05/2015 - 09:52
Posts: 1577
Location: U.P. MI, USA

I put in an order today as well. Scheduled for the 29th

Br0nz
Offline
Last seen: 5 months 6 days ago
Joined: 08/11/2016 - 21:27
Posts: 5
Location: Connecticut

Hi, I am new here (if you couldn’t tell from my post count!) I want to build the 17mm version of this driver, I am having trouble locating and selecting the correct items, I looked up the fet found choices on mouser but the size etc still gives me a list of values I need like gate voltage etc. Same with the resistors .10 and $1 ones in the same 603 size, not sure which to order! Thanks!

LightRider
LightRider's picture
Online
Last seen: 6 min 44 sec ago
Joined: 08/05/2015 - 09:52
Posts: 1577
Location: U.P. MI, USA
Br0nz wrote:
Hi, I am new here (if you couldn’t tell from my post count!) I want to build the 17mm version of this driver, I am having trouble locating and selecting the correct items, I looked up the fet found choices on mouser but the size etc still gives me a list of values I need like gate voltage etc. Same with the resistors .10 and $1 ones in the same 603 size, not sure which to order! Thanks!

I know your feeling! I can say for resistors, I usually narrow down the options using these filters:
0603 package(or 0805, 1206 depending)
In stock
Cut tape
1% accuracy
Then I sort by price and choose the cheapest resistor that has the highest temperature range. At the low prices the temps are usually the same, but sometimes there is a low temp version in there and I usually stay away from those.

The price is usually .10 for one, but buy 10 for .25. Something like that.

Edit: I use a similar method for choosing other components, but yes, there are some basic values that you need to know. For fet, you need to know the size or package you want. Look for single n-channel fet ,best temperature range and for a low resistance.

pilotdog68
pilotdog68's picture
Offline
Last seen: 2 days 14 hours ago
Joined: 05/30/2013 - 23:31
Posts: 6319
Location: Held against my will in IOWA, USA

There are a lot of things that go into choosing a FET in particular. The SIR800DP(?) is regarded as the best (and also expensive). You can search the forum to find discussions on a couple model #‘s that suit our purposes as well.

My Favorite Modded Lights: X6R, S8 , X2R , M6, SP03

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

Texas_Ace
Texas_Ace's picture
Online
Last seen: 8 min 21 sec ago
Joined: 03/24/2016 - 07:44
Posts: 3568
Location: Everything is brighter in Texas

Ditto the above, I just got my parts order for the drivers in today. After I build a few and make sure everything works I will try to make a shopping cart with everything you need.

I follow lightriders selections for narrowing down the selection to the parts that are at least the type I am looking for.

The Second Amendment is in place in case the politicians ignore the others.

Government is the great fiction, through which everybody endeavors to live at the expense of everybody else. -- Frederic Bastiat , French economist(1801-1850)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT

How I made a True integrating PVC sphere with no math involved

Br0nz
Offline
Last seen: 5 months 6 days ago
Joined: 08/11/2016 - 21:27
Posts: 5
Location: Connecticut

Thank you guys, I look forward to the cart. The last few builds I did I used MTN17DDm-NUV but this looks like DRJONES-H17F with Bistro, that seems like the best of both worlds. I wanted to try a 1+7+FET but I didn’t want to give up Bistro.

Tom E
Tom E's picture
Offline
Last seen: 30 min 43 sec ago
Joined: 08/19/2012 - 08:23
Posts: 9553
Location: LI NY

Just got in the 22mm's today. Look'n good/!See they are labeled 26 mm surprisedsmile

Hope to have a chance to reflow one tonight, we'll see.

Texas_Ace
Texas_Ace's picture
Online
Last seen: 8 min 21 sec ago
Joined: 03/24/2016 - 07:44
Posts: 3568
Location: Everything is brighter in Texas
Tom E wrote:

Just got in the 22mm’s today. Look’n good/!See they are labeled 26 mm surprisedsmile


Hope to have a chance to reflow one tonight, we’ll see.

LOL, opps. I will put that on the to fix list.

I am hoping to reflow one tomorrow.

The Second Amendment is in place in case the politicians ignore the others.

Government is the great fiction, through which everybody endeavors to live at the expense of everybody else. -- Frederic Bastiat , French economist(1801-1850)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT

How I made a True integrating PVC sphere with no math involved

ImA4Wheelr
ImA4Wheelr's picture
Offline
Last seen: 12 hours 37 min ago
Joined: 02/03/2013 - 14:51
Posts: 7299
Location: SC

My 2oz 17 and 22mm boards arrived today. Boards look great, but boy are those pads tiny. I knew they would be tiny, but didn’t realize how tiny they would be. I’ll see what 0805 parts I can get away with and then order the rest. Probably, won’t get around to it for a couple days at least.

". . . You realize that wasn't really a loss for me in Africa — it was a gain that I didn't appreciate."

- George Foreman 2017

Texas_Ace
Texas_Ace's picture
Online
Last seen: 8 min 21 sec ago
Joined: 03/24/2016 - 07:44
Posts: 3568
Location: Everything is brighter in Texas
ImA4Wheelr wrote:
My 2oz 17 and 22mm boards arrived today. Boards look great, but boy are those pads tiny. I knew they would be tiny, but didn’t realize how tiny they would be. I’ll see what 0805 parts I can get away with and then order the rest. Probably, won’t get around to it for a couple days at least.

LOL, yeah I knew the entire board would be tiny but seeing it in person really drives the point home. Dealing with it in software at 10” diameter, you forget how small it will end up.

I looked over the boards and they look good to me, a few minor things I will correct just because they annoy me (26mm printed on the 22mm, the FET resistors not perfect lined up ect).

Only thing that I noticed that was not how I wanted it was the copper pour not going all the way to the edge of the board. I know oshpark says in the specs that they won’t do that but PD seems to get them to do it on the tripledowns?

These should still work, just remember to solder them in place and/or add a soluder blob to make the ground contact.

PD, how do you get OSHpark to take the copper all the way to the edge of the board?

The Second Amendment is in place in case the politicians ignore the others.

Government is the great fiction, through which everybody endeavors to live at the expense of everybody else. -- Frederic Bastiat , French economist(1801-1850)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT

How I made a True integrating PVC sphere with no math involved

pilotdog68
pilotdog68's picture
Offline
Last seen: 2 days 14 hours ago
Joined: 05/30/2013 - 23:31
Posts: 6319
Location: Held against my will in IOWA, USA

Luck, I guess? They seem to be getting more picky about their edge limits lately.

My Favorite Modded Lights: X6R, S8 , X2R , M6, SP03

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

mozart.f
Offline
Last seen: 3 days 2 hours ago
Joined: 05/05/2015 - 21:46
Posts: 67
Location: Brazil

Hello my blf friends. For those fortunate that are with these driver boards on hand, is it possible to post pictures and test results please. For sure there are others blf members like me waiting some feedback to pull the trigger and order some boards to assemble. Is there a board layout revision ongoing, or can we order now? Thanks for additional information.

Tom E
Tom E's picture
Offline
Last seen: 30 min 43 sec ago
Joined: 08/19/2012 - 08:23
Posts: 9553
Location: LI NY

Didn't have a chance yet to reflow one, but fully buzzed out a 22 mm last night, and all looks good. Think I need to print out your pics in the OP since I don't have a screen handy by my bench. The labeling is tough to read, and in some places not so clear on what pads it labels. Even on the 22 mm board, real estate is super tight, and OSHPark's labels don't work well at those sizes.

I'm really confused now bout pad sizes and parts... Thought the 22 mm pads were all 0805's - I measured a few of them and they matched Richard's red board, accept for the 0402 resistor he uses of course.

Think you state in the OP they are all 0603 accept C1? Is this across all size boards? Weird because the pad sizes match exactly with Richard's, so was it common to use 0603 pad sizes then on all our common OSHPark driver boards? Didn't do more compares, but I got a ton of OSHPark boards laying around from several sources, in several sizes  -- way too much unused, and looks like they will never be used now, with all these great new ones laughing. It's a good problem I guess...

pilotdog68
pilotdog68's picture
Offline
Last seen: 2 days 14 hours ago
Joined: 05/30/2013 - 23:31
Posts: 6319
Location: Held against my will in IOWA, USA

All of wights and my own boards use 0805, and Richard used to, but since he is using his own designs and his part picker machine he switched to smaller stuff.

My Favorite Modded Lights: X6R, S8 , X2R , M6, SP03

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

Tom E
Tom E's picture
Offline
Last seen: 30 min 43 sec ago
Joined: 08/19/2012 - 08:23
Posts: 9553
Location: LI NY

Ahh, I see. He spec's 0805 or 0603 parts. I've only used 0805's with his boards and seems to work out fine, plus his kits are mostly 0805's.

Texas_Ace
Texas_Ace's picture
Online
Last seen: 8 min 21 sec ago
Joined: 03/24/2016 - 07:44
Posts: 3568
Location: Everything is brighter in Texas
mozart.f wrote:
Hello my blf friends. For those fortunate that are with these driver boards on hand, is it possible to post pictures and test results please. For sure there are others blf members like me waiting some feedback to pull the trigger and order some boards to assemble. Is there a board layout revision ongoing, or can we order now? Thanks for additional information.

I just built one, when I have more time I will run some tests and post some pictures and results. Most likely tomorrow.

I would wait to order until I get a few minor things with the silk screen and mask swell fixed, nothing major, just convenience things. Should be able to get the updates made later this week hopefully.

Tom E wrote:

Didn’t have a chance yet to reflow one, but fully buzzed out a 22 mm last night, and all looks good. Think I need to print out your pics in the OP since I don’t have a screen handy by my bench. The labeling is tough to read, and in some places not so clear on what pads it labels. Even on the 22 mm board, real estate is super tight, and OSHPark’s labels don’t work well at those sizes.


I’m really confused now bout pad sizes and parts… Thought the 22 mm pads were all 0805’s – I measured a few of them and they matched Richard’s red board, accept for the 0402 resistor he uses of course.


Think you state in the OP they are all 0603 accept C1? Is this across all size boards? Weird because the pad sizes match exactly with Richard’s, so was it common to use 0603 pad sizes then on all our common OSHPark driver boards? Didn’t do more compares, but I got a ton of OSHPark boards laying around from several sources, in several sizes  — way too much unused, and looks like they will never be used now, with all these great new ones laughing. It’s a good problem I guess…

Yeah, I just reflowed one a little bit ago, not much time right now to say a lot but there are a few silk screen changes I will be making (make sure the diode is pointed towards the FET, I got it mixed up the first time). The solder mask swell seems to have cause some of the silk screen to get covered up.

Sadly beside moving the silk around a bit there is not a lot of room to do much better. Although now that I see how OSHpark does the silk I will give it a go.

Far as the pad sizes go, everything is 0603 except C1 and OTC (17mm version is 0603 on OTC), this applies to all the sizes as I wanted to standardize my parts drawer. I built mine with 0603 components but there is a lot of extra room around them, I think 0805 should be possible.

My built driver looks exactly like the Diptrace 3D rendering. Only issues I ran into was the solder mask was slightly misalligned on the back of the driver exposing some of the 7135 trace that is near the spring. As long as I used a smaller spring it worked fine but a large spring caused it to bridge. Simple fix though.

The Second Amendment is in place in case the politicians ignore the others.

Government is the great fiction, through which everybody endeavors to live at the expense of everybody else. -- Frederic Bastiat , French economist(1801-1850)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT

How I made a True integrating PVC sphere with no math involved

mozart.f
Offline
Last seen: 3 days 2 hours ago
Joined: 05/05/2015 - 21:46
Posts: 67
Location: Brazil

Texas_Ace, thanks for your reply.
I’ll wait the revision to order the board. I already ordered the necessary components to this driver. Curious about the results/images…

Texas_Ace
Texas_Ace's picture
Online
Last seen: 8 min 21 sec ago
Joined: 03/24/2016 - 07:44
Posts: 3568
Location: Everything is brighter in Texas
mozart.f wrote:
Texas_Ace, thanks for your reply. I’ll wait the revision to order the board. I already ordered the necessary components to this driver. Curious about the results/images…

I am actually knee deep into polishing up these drivers as we speak. I will update the OP with the newer, cleaner and better sorted selection of drivers later today along with pictures of a built driver.

Quick spoiler, it works great from the little testing I have done so far.

The Second Amendment is in place in case the politicians ignore the others.

Government is the great fiction, through which everybody endeavors to live at the expense of everybody else. -- Frederic Bastiat , French economist(1801-1850)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT

How I made a True integrating PVC sphere with no math involved

Texas_Ace
Texas_Ace's picture
Online
Last seen: 8 min 21 sec ago
Joined: 03/24/2016 - 07:44
Posts: 3568
Location: Everything is brighter in Texas

Ok, I just finished building, testing and knocking out the updates to the design I wanted after building a few. Nothing major, mostly silk screen changes, A few minor tweaks for ease of assembly, extended the SOIC-8 legs a bit and I moved 1 via.

Here are some pictures of the assembled drivers:

Fully assembled and working:



And for size comparison, it is easy to forget the size of these things.

I had a few minor issues with the first board I reflowed bridging traces due to what turned out to be a misaligned solder mask. The rest of the ones in my order turned out fine, so I will just address those.

I agree with Tom, there were some minor changed to the silk screen that could help. I did the best I could with the silly tight space. You will need a magnifier in order to read them, that is for sure.

I tweaked a few minor things to help address minor mis-alingments in the manufacturing.

I moved a via that was close to the back side 7135’s that could bridge to ground if you used too much solder paste near it (not that I would know Innocent ).

I also extended the SOIC-8 pads to allow fitting tiny25’s easier.

Besides those changes the drivers appear to work as intended. Bistro is working great, I posted my revision of it in the OP that is tweaked for this driver. Although I need to recheck the voltage readings since I was using 19.1k R1 before, should not make much of a difference but gonna check anyways.

Overall I am VERY happy with how they turned out and I think I can officially endorse people ordering them at this point assuming that Tom and others have similar experiences with them.

The Second Amendment is in place in case the politicians ignore the others.

Government is the great fiction, through which everybody endeavors to live at the expense of everybody else. -- Frederic Bastiat , French economist(1801-1850)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT

How I made a True integrating PVC sphere with no math involved

Texas_Ace
Texas_Ace's picture
Online
Last seen: 8 min 21 sec ago
Joined: 03/24/2016 - 07:44
Posts: 3568
Location: Everything is brighter in Texas

The OP has been updated with final designs, firmware links, and a digikey cart among other updates!

Please do have a look at point out any mistakes or issues you may notice. Thanks!

The Second Amendment is in place in case the politicians ignore the others.

Government is the great fiction, through which everybody endeavors to live at the expense of everybody else. -- Frederic Bastiat , French economist(1801-1850)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT

How I made a True integrating PVC sphere with no math involved

pilotdog68
pilotdog68's picture
Offline
Last seen: 2 days 14 hours ago
Joined: 05/30/2013 - 23:31
Posts: 6319
Location: Held against my will in IOWA, USA

I still use 19.1k for R1. I think it’s better, but it might just be superstition.

What I really want to know is, what did you use to take such clear pictures?

My Favorite Modded Lights: X6R, S8 , X2R , M6, SP03

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

Texas_Ace
Texas_Ace's picture
Online
Last seen: 8 min 21 sec ago
Joined: 03/24/2016 - 07:44
Posts: 3568
Location: Everything is brighter in Texas

pilotdog68 wrote:
I still use 19.1k for R1. I think it’s better, but it might just be superstition.

What I really want to know is, what did you use to take such clear pictures?

Yeah, I don’t really care myself, I have both. I just figured I would match DEL’s part list.

Funny thing is I was actually upset that the pictures didn’t come out as good as I was hoping but didn’t feel like dragging out the tripod and my “good” equipment in order to get it better lol.

The setup is actually pretty simple, an old Nikon D80 with an ok macro lens. For some reason my exposure was messed with by someone and it caused them to wash out a little. Luckily I always shoot in RAW so I was able to patch it up there.

The real key is lighting, I have a lightbox setup with high’ish CRI ring lights to light things evenly and properly. Lighting is by far the most important thing with taking pictures.

I want to get some 5000k 90+ CRI LED’s at some point and make up some photo lights.

The Second Amendment is in place in case the politicians ignore the others.

Government is the great fiction, through which everybody endeavors to live at the expense of everybody else. -- Frederic Bastiat , French economist(1801-1850)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT

How I made a True integrating PVC sphere with no math involved

Tom E
Tom E's picture
Offline
Last seen: 30 min 43 sec ago
Joined: 08/19/2012 - 08:23
Posts: 9553
Location: LI NY

The setting I use for a 220K/47K are dead-on accurate from the blinked out voltage reading for wight style boards, and the BLF Q8. Took a lot of time for me to tweak the table (2.0v to 4.5v), so I'm sticking with that. I did develop tables for a 191K and 220K for use in a modded MTN17DDm red board (diode in different sequence), but I prefer to stick with the 220K. Table values are the same for x10 (220K/47K or 22K/4.7K) or not - that's what's nice bout it. It's proven many times in the 10 or so lights I've built up and tested.

pilotdog68
pilotdog68's picture
Offline
Last seen: 2 days 14 hours ago
Joined: 05/30/2013 - 23:31
Posts: 6319
Location: Held against my will in IOWA, USA

Texas_Ace wrote:
pilotdog68 wrote:
I still use 19.1k for R1. I think it’s better, but it might just be superstition.

What I really want to know is, what did you use to take such clear pictures?


Funny thing is I was actually upset that the pictures didn’t come out as good as I was hoping but didn’t feel like dragging out the tripod and my “good” equipment in order to get it better lol.

I guess they are a little washed, but mainly I was just impressed with the focus. It’s nice to be able to read the part labels. I need to start skimming craigslist for cheap equipment

I use 19.1k for anything using an OTC. Somehow it affects the timing, or at least it appeared to in my own experience and TK’s testing. Like I said, it might be snake oil, or just better quality resistors instead of resistance value, but now that I’ve got it in my head my superstitions won’t let me go back

My Favorite Modded Lights: X6R, S8 , X2R , M6, SP03

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

Texas_Ace
Texas_Ace's picture
Online
Last seen: 8 min 21 sec ago
Joined: 03/24/2016 - 07:44
Posts: 3568
Location: Everything is brighter in Texas
pilotdog68 wrote:
I guess they are a little washed, but mainly I was just impressed with the focus. It’s nice to be able to read the part labels. I need to start skimming craigslist for cheap equipment

Yeah, they came out pretty clear, could have improved on it a bit with a tripod but I was happy enough.

You really don’t need much to take good pictures.

An DSLR is a must, doesn’t have to be the latest model, heck this one is over 10 years old. I REALLY prefer nikon over cannon but that is a bit of a ford vs chevy thing, except for lenses, nikon is better.

A good lens is worth the investment, I love my 18-200mm nikon. It sits on the camera 95% of the time since it handles 95% of the shooting situations you may run into. They have some newer / better versions of it out now but that means you can get the older ones for cheaper.

If you want close up pictures a macro lens is a must, something reasonably fast.

After that a tripod of some sort, I have a few but honestly one of the nicest was $3 at a garage sale.

Then the real key, lighting. High CRI is highly recommended but most important is even lighting. For things like this you can’t beat a light box / tent. The lights shine through the fabric and cast a nice even glow over the item removing most shadows yet still giving contrast.

Oh, and shoot in RAW format and learn how to edit it RAW. It is so much better then jpeg/photoshop.

The Second Amendment is in place in case the politicians ignore the others.

Government is the great fiction, through which everybody endeavors to live at the expense of everybody else. -- Frederic Bastiat , French economist(1801-1850)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT

How I made a True integrating PVC sphere with no math involved

mozart.f
Offline
Last seen: 3 days 2 hours ago
Joined: 05/05/2015 - 21:46
Posts: 67
Location: Brazil

Texas_Ace wrote:
Ok, I just finished building, testing and knocking out the updates to the design I wanted after building a few. Nothing major, mostly silk screen changes, A few minor tweaks for ease of assembly, extended the SOIC-8 legs a bit and I moved 1 via.

Here are some pictures of the assembled drivers:

Fully assembled and working:



And for size comparison, it is easy to forget the size of these things.

I had a few minor issues with the first board I reflowed bridging traces due to what turned out to be a misaligned solder mask. The rest of the ones in my order turned out fine, so I will just address those.

I agree with Tom, there were some minor changed to the silk screen that could help. I did the best I could with the silly tight space. You will need a magnifier in order to read them, that is for sure.

I tweaked a few minor things to help address minor mis-alingments in the manufacturing.

I moved a via that was close to the back side 7135’s that could bridge to ground if you used too much solder paste near it (not that I would know Innocent ).

I also extended the SOIC-8 pads to allow fitting tiny25’s easier.

Besides those changes the drivers appear to work as intended. Bistro is working great, I posted my revision of it in the OP that is tweaked for this driver. Although I need to recheck the voltage readings since I was using 19.1k R1 before, should not make much of a difference but gonna check anyways.

Overall I am VERY happy with how they turned out and I think I can officially endorse people ordering them at this point assuming that Tom and others have similar experiences with them.

Texas_ace, can’t wait to build some drivers with those boards.
Just a question. Wy your boards aren’t using the zener diode? Richard’s red drivers uses the zener in 1S configuration. Congrats.

Texas_Ace
Texas_Ace's picture
Online
Last seen: 8 min 21 sec ago
Joined: 03/24/2016 - 07:44
Posts: 3568
Location: Everything is brighter in Texas
mozart.f wrote:
Texas_ace, can’t wait to build some drivers with those boards. Just a question. Wy your boards aren’t using the zener diode? Congrats.

There is no need for the zener diode unless you will be using 2S. It is simply there to keep the voltage from going above 4.3v. You can install it all the time if you want, but zeners are not cheap.

Same for the bleeder resistor, only needed if you are using a lighted tailcap.

The Second Amendment is in place in case the politicians ignore the others.

Government is the great fiction, through which everybody endeavors to live at the expense of everybody else. -- Frederic Bastiat , French economist(1801-1850)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT

How I made a True integrating PVC sphere with no math involved

mozart.f
Offline
Last seen: 3 days 2 hours ago
Joined: 05/05/2015 - 21:46
Posts: 67
Location: Brazil

Texas_Ace I edited my post in the same time that you replied it. I intend to use the zener as I already have then.
I respect your work, and understand that these boards will be widely accepted here at BLF. Keep the inspired work.

Texas_Ace
Texas_Ace's picture
Online
Last seen: 8 min 21 sec ago
Joined: 03/24/2016 - 07:44
Posts: 3568
Location: Everything is brighter in Texas
mozart.f wrote:
Texas_Ace I edited my post in the same time that you replied it. I intend to use the zener as I already have then. I respect your work, and understand that these boards will be widely accepted here at BLF. Keep the inspired work.

In answer to your edited question. RMM uses the zener to deal with the voltage spike issue that happens with high currents in the FET. The zener would bleed the voltage spike off keeping the MCU from seeing it.

Since these drivers are using DEL’s updated schematic this is not an issue for these drivers in theory. The new parts fix the voltage spike from happening.

So you can use the zener if desired but they should not be needed.

I put them on the driver simply because I wanted a driver that could do everything, including multi-cell setups.

The Second Amendment is in place in case the politicians ignore the others.

Government is the great fiction, through which everybody endeavors to live at the expense of everybody else. -- Frederic Bastiat , French economist(1801-1850)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT

How I made a True integrating PVC sphere with no math involved

Pages