Custom 17mm 5Amp PWM-less linear driver-preliminary

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HKJ
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AlexGT wrote:
HKJ I would love to see the driver tested on a XM-L2, can I gift you a noctigon XM-L2 U2 for your tests? Let me know :)
I will test with both leds and hope the XM-L2 survives. I do not want to wait two weeks to get a new led, but for the future I will have to locate some XM-L2 on copper stars.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

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Just say the word. They can come at you via Richard here or through Intl-Outdoor, drop shipped to your door.

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DBCstm wrote:
Just say the word. They can come at you via Richard here or through Intl-Outdoor, drop shipped to your door.

Look like mtnelectronics only ships to US and intl-outdoor is sold out in 20mm U2 version.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

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I’ll talk to him, pay for em, and you can just provide an address to Richard.

Tom E
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First/early review notes for this LD-1 driver posted here: http://budgetlightforum.com/node/33009

 

Down_South
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Is this driver listed as something besides LD-1 on Intl-Outdoors?
I see 18 drivers there and don’t see this one.

Would this work well in a BTU Shocker host?
http://www.cnqualitygoods.com/goods.php?id=1818

Off topic:
Would a 60 Watt Weller temp controlled (700 & 800 degree F tips) soldering station work OK for reflowing LED’s?

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Lack of consideration for others in minor matters.

A loss of politeness, of gentle manners, is more significant than is a riot.”

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Down_South wrote:
Is this driver listed as something besides LD-1 on Intl-Outdoors? I see 18 drivers there and don’t see this one. Would this work well in a BTU Shocker host? http://www.cnqualitygoods.com/goods.php?id=1818 Off topic: Would a 60 Watt Weller temp controlled (700 & 800 degree F tips) soldering station work OK for reflowing LED’s?

- It's not for sale anywhere yet. a Handful have been sent out for early ALPHA/BETA testing.

- no, will not work well in a Shocker, at least not how a stock Shocker is configured for 3 LED's in series, 3 cells in series.

- I use hot air or a frying pan to reflow, though I've used on occasion a soldering iron - no the best method. Not familiar with the 60 Watt Weller...

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Thank you for the info about the LD-1 driver.
I misread the comments so I re-read them.
Talking about stars with LED’s to be sent to people who already have the driver.

Thanks for the series info on the shocker.
I didn’t see that info anywhere.
Might be good for my HD 2010 or X3.

I did find that you use the IOS driver, but I don’t think (I’m told that quite often) I want to go that far.
I’d change my name to Newbie, but I think someone else already has that.

If the LCK-LED site ever comes back up I’ll find a driver for the BTU shocker unless you know someone who would like to sell the stock or Dry driver.

Soldering station:
http://www.amazon.com/WTCPT-Temperature-Controlled-Soldering-Station/dp/...

except mine’s 30 years old and built in a metal box painted USN gray.

“A dying culture invariably exhibits personal rudeness. Bad manners.

Lack of consideration for others in minor matters.

A loss of politeness, of gentle manners, is more significant than is a riot.”

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Updated to OP in my review thread with this:

Current Controlled medium mode vs. a PWM medium mode

To compare to a Nanjg PWM based driver, I measured the LD-1 in medium mode at 1.13A against a medium mode in a 12x350 7135 PWM driver in the same flashlight (HD2010).

LD-1 turbo mode configured, medium mode                      1.13A @tail,  lumens: 483 @start, 479 @30secs

Nanjg 4.2A driver (measured 4.34A @tail), medium mode: 1.32A @tail,  lumens: 381 @start, 371 @30secs

*** the LD-1 is 29% brighter, even though it is running on 14% less power. I'd say this proves how really poor PWM modes are on a higher powered light, and how efficient true current controlled regulation is.

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Thanks Tom, that’s exactly the kind of independent validation I was looking for to show that “should be” measures up to “is”. Thumbs up.

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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I had the driver in two different HD2010 pills, but using the same HD2010 body. Not an ideal comparison and it's only one value. Hhmm - should go through the lower modes as well...

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Thanks for doing that real life comparison! 

(Im still waiting for the driver... )

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shrike3612
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Hello, led4power

Could you change mode option?
Simple mode option is good.
However I want many mode option like Zebralight’s lights.
Simple 3 mode by selecting how long time click it on and each mode I can adjust sub mode.

As you knew, this circuit’s efficiency is very good. I want to use it’s circuit in many power output other that moon, 1%, 20%, 100% and Turbo.
My wish mode group is below.

1. High group -> 100%, 70%, 50% and Turbo

2. Middle group -> 30%, 20%, 10%,

3. Low group -> 5%, 3%, 1%, 0.1%

4. Special -> Strobe, SOS, Beacon

Please tell your think.

Thanks
Kim.

p.s. sorry for my bad English.

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shrike3612 wrote:
Could you change mode option?
… I want many mode option like Zebralight’s lights.

I think perhaps the real question is if you can find anyone to write new firmware for this driver.

I’ve thought about writing a ZL-like UI for attiny13a chips with a momentary switch, but I don’t know what MCU the led4power driver is using. It looks like something else that I’m not familiar with. And I’m not sure if the output levels can be changed only via firmware or if it also requires hardware updates.

led4power
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Why not ramping?

It's much more intuitive(at least to me),and you have practically unlimited numbers of modes(8-10 bit resolution to be precise).

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Some people like ramping. I kind of prefer a fixed set of modes with known output and runtime. This way, I know better what to expect (will this mode last for 5 hours or 15?) and can get a better feel for how dark-adjusted my eyes are at the moment.

With my JETbeam RRT01, I can always get exactly the right amount of light… but I never have a clue how long it’ll last. And I always end up setting it as dim as possible for whatever I’m doing, and then thinking my eyes must be really tired or something… until I turn on a fixed-output light and find out I only had the RRT01 at like half a lumen (because suddenly 3 lumens looks bright).

I normally configure my lights for 5 modes — moon (0.1 lm to 0.5 lm), low (3 lm to 7 lm), medium (15 lm to 40 lm), high (100 lm to 200 lm), and higher (300+ lm). Depends on the light though. I really like the ZL UI, which allows for 10 levels with reasonably easy access to all. It’s not so great when lending the light to a muggle, but for my purposes I like it a lot more than ramping.

If I can find time to write a ZL-like firmware for attiny13, I’ll include the source in my firmware repository. I’d kind of like to have that UI on my Skyray King, but I’ve been really busy so I’m not sure when it’ll happen.

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I haven’t tried ramping yet but it sure sounds good. Maybe I won’t like it as much after the novelty wears off though. I do like variety so either way I’ll probably end up with several different ui’s rather than just one for every light.

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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DrJones lumodrv (R86 edition)

Ramping and user programable modes in one UI. Best of both worlds..

BLF LED database – collaboration spreadsheet and latest news about where to buy LEDs
http://budgetlightforum.com/node/19342

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No sources for lumodrv though… so no joy.

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?

You buy them from DrJones. You can specify number of modes.

BLF LED database – collaboration spreadsheet and latest news about where to buy LEDs
http://budgetlightforum.com/node/19342

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I may just be weird. I mostly live in a world ruled by source code, where anything without source has little if any relevance. Seeing people release only the binary, or even making code available only in hardware form, is a bit of a culture shock for me. After leaving proprietary software behind a couple decades ago, it’s a deeply ingrained reflex to grab the code and fix it any time something isn’t quite right. It takes a conscious effort to not ignore anything I can’t get source for.

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Ramping is fun but not something I’ll use running on trail. (Planning to put the driver into a headlight). Taking attention away from foot placement could result in a stubbed toe. Like ToyKeeper, I like having solid modes with predictable runtimes. I also have a couple lumodrv s but asked Dr Jones for solid outputs of 5%, 25%& 80%. ( I love the battery monitor!)

My gratitude to those who are willing and able to help others (in whatever way you can)! Being human is more than just existing for yourself. Smile

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@led4power

Congratulations. The test results show you did a remarkable job and after a little tweaking here and there this will be a helluva driver for high and low current applications. I’m truly impressed.

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ToyKeeper wrote:
I may just be weird. I mostly live in a world ruled by source code, where anything without source has little if any relevance. Seeing people release only the binary, or even making code available only in hardware form, is a bit of a culture shock for me. After leaving proprietary software behind a couple decades ago, it’s a deeply ingrained reflex to grab the code and fix it any time something isn’t quite right. It takes a conscious effort to not ignore anything I can’t get source for.
Eh? Weren’t you purchasing ZL and other proprietary flashlights up until the last month or so? Don’t you use tons of proprietary commodity items on a day to day basis (such as your TV, the BIOS on your computer, the computer in your car, the stereo in your car, almost all your network equipment, definitely your modem, etc)? I like open-source and free-as-in-freedom as much as the next cat, but I get the feeling that this “conscious effort not to ignore” claim is just a high-pressure way of [not] asking people to release sources. Maybe it’s more accurate to say that you make an effort to focus on free & open alternatives when they are available?

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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wight wrote:
Eh? … Don’t you use tons of proprietary commodity items on a day to day basis …

It’s very possible that I’m just really happy to have the ability to change the firmware now… but it had been bugging me ever since I first got into flashlights. Even the best stock items could be improved, and it bugs me when I can’t improve it myself. For example, I’ve tried repeatedly to get changes into the Zebralight firmware, but they generally just give me a pat on the head and tell me I’m cute.

I’m not Richard Stallman, so I’ll use proprietary stuff when there’s no other option, but it bothers me and I tend to avoid it. Like… my TV is running a customized version of Cyanogenmod, and my notebook is running modded BIOS, but I haven’t attempted to change the firmware on my microwave. I’m pretty sure though, if I was an active member of, er, Budget Microwave Forum, I’d probably have a dozen microwaves with firmware I wrote myself.

This new driver is pretty exciting, a major step forward for lights… but it’d be even more exciting with source code and a flashing kit.

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Oh - btw, I'm trying to fathom what I'm seeing, and was leery of posting this. But, it's consistent and I checked my lightbox/meter against other lights (low and high output) and everything is in order.

So, I got the LD-1 driver jumpered at what should be non-turbo, mounted in a big fat VOB copper pill in a HD2010, 20 AWG wires, XM-L2 U2 1A/Noctigon screwed down using GC Extreme, wired up springs using 22 AWG, NO-OX-ID treatment on contacts, measured this:

LG HE2 4.21v, 5.13A tail, lumens: 1,666 @start - 1,581 @30secs, 105 kcd at 5 meters

It's consistent, and checking other lights, the meter seems fine. The beam pattern sucks because of the off centered LED (crappy centering piece that's too small), but it sure is putting out a lot of light! It's still, I'd say, maybe 100-200 lumens higher than comparable setups, but the difference is with this: screwed down into the copper pill with 20 AWG wire (I was using 22 AWG, not using screws), and of course the LD-1 driver.

wight
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ToyKeeper wrote:
wight wrote:
Eh? … Don’t you use tons of proprietary commodity items on a day to day basis …

It’s very possible that I’m just really happy to have the ability to change the firmware now… but it had been bugging me ever since I first got into flashlights. Even the best stock items could be improved, and it bugs me when I can’t improve it myself. For example, I’ve tried repeatedly to get changes into the Zebralight firmware, but they generally just give me a pat on the head and tell me I’m cute.

I’m not Richard Stallman, so I’ll use proprietary stuff when there’s no other option, but it bothers me and I tend to avoid it. Like… my TV is running a customized version of Cyanogenmod, and my notebook is running modded BIOS, but I haven’t attempted to change the firmware on my microwave. I’m pretty sure though, if I was an active member of, er, Budget Microwave Forum, I’d probably have a dozen microwaves with firmware I wrote myself.

This new driver is pretty exciting, a major step forward for lights… but it’d be even more exciting with source code and a flashing kit.

Fair enough, I agree with a lot of what you’re getting at. I tend to stray towards more flexible solutions, and those solutions tend to be more open, and.. so on and so forth. It’s interesting how stock firmwares become much more flexible nearly simultaneously with the release of aftermarket firmwares (FOSS or not).

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)

shrike3612
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led4power wrote:

Why not ramping?

It’s much more intuitive(at least to me),and you have practically unlimited numbers of modes(8-10 bit resolution to be precise).


You’re right. Ramping is good.
But I used to with fixed mode option.
I just want to know fixed mode firmware will be done.

Can you do that? How many circuits do I have to buy if I want my own modes option?

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So are we any closer to a date when this will be released for sale?

I’m in for at least 6 if they are around $15 each.

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shrike3612 wrote:
You're right. Ramping is good. But I used to with fixed mode option. I just want to know fixed mode firmware will be done. Can you do that? How many circuits do I have to buy if I want my own modes option?

I'm not sure if I understand.Do you want a combination of fixed modes(0.3%,1.5%,20%,100% or similar) but with additional ramping ability between those modes?

Currently,you have 3 different e-switch UI's:

1st:single press->next mode,double press->previous mode,long press from off state->high mode

2nd:ramping

3rd:single press on-off,double press->next mode

More details in OP.

LSX wrote:
So are we any closer to a date when this will be released for sale? I'm in for at least 6 if they are around $15 each.

When I open selling threadTongue Out,seriously,I can't guarantee nothing,but I hope for about 4-5 weeks,when all parts and pcbs arrive+time for assembly.

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