Led4power.com : LD-4 CC linear drivers, ILC-0/1 illuminated tailcaps, optics, MOSX, copper DTP MCPCBs...

1199 posts / 0 new
Last post
contactcr
Offline
Last seen: 51 min 42 sec ago
Joined: 05/19/2017 - 18:52
Posts: 2854
Location: US

Yes I guess it’s like putting a $120 371D driver in a Convoy S2+. I’ve seen people do it but not sure why.

led4power
led4power's picture
Offline
Last seen: 19 hours 22 min ago
Joined: 12/29/2012 - 09:48
Posts: 1227
Location: Croatia,EU

Agro wrote:
led4power, did you consider making complete LED engines with LEDs and driver on a single DTP board?

Shortly, yes, light engines are very convenient to use in theory, everything is on one pcb and there are no thermal issues. But they have quite few disadvantages:

  1. Light engines are pretty much limited to triples and quads, it's not possible to make light engine on standard single LED on 20mm pcb,at least not with lights which use reflector,
  2. LEDs become outdated pretty fast these days,with light engine configuration you are stuck with default leds, and for most modders changing 3-4 LEDs on very tightly populated pcb would be too challenging,
  3. For each type of led (3535,4040...), for every number of leds (3 or 4) there is need for different pcb design, which complicates assembly and increases initial cost,
  4. With bigger leds like 4040 there is very little space for all driver components on typ. 20mm 3x or 4x PCB,
  5. Central hole for wires on 20mm light engine is generally not possible because this is most useful area for bigger driver components - this means you can't use available triple/quad spacers or lights without drilling holes for wires closer to edge of spacer/flashlight pill.

Generally speaking standard drivers/LED DTP PCBs combination have only one disadvantage (IHMO) vs. light engines and that is more limited heat dissipation,regardless of driver type. LD-B4 is something between normal driver and light engine, its disadvantage is larger number of driver<->LEDPCB wires and need for special MCPCB (mosX,mosDTP). 

So after some thinking,I have another idea around which I will build some future drivers, shortly they will be simple to use just like "normal" drivers (two leds wires,optional temp. sense wire,normal DTP), and have thermal dissipation capability close to LD-B4/mosX combination, so they will be perfect for most common builds (single LED,triples,quads). LD-B4-like drivers will still be there for very high power builds.

led4power
led4power's picture
Offline
Last seen: 19 hours 22 min ago
Joined: 12/29/2012 - 09:48
Posts: 1227
Location: Croatia,EU

ILC-0 RGB color changing module on sale:  ILC-0 RGB

I tried it with BLF A6 driver and it works nicely, except current draw is higher (2-3mA), whit different bleeder value it should be possible to reduce it. Anyway,battery is safe from overdischarge since LVP kicks in at <3V (1.2uA sleep current).

 

djozz
djozz's picture
Offline
Last seen: 6 hours 16 min ago
Joined: 09/07/2012 - 17:04
Posts: 16161
Location: Amsterdam

^ the BLF-A6 driver as it comes from Banggood does not have a bleeder resistor (while the X5/X6 driver does have one, 470 Ohm), which value did you use and with what led that works well?

kiriba-ru
kiriba-ru's picture
Offline
Last seen: 1 hour 54 min ago
Joined: 01/17/2016 - 02:34
Posts: 1934
Location: Russia

I have tried at least five A6 drivers from BG and all worked with lightened switch.

djozz
djozz's picture
Offline
Last seen: 6 hours 16 min ago
Joined: 09/07/2012 - 17:04
Posts: 16161
Location: Amsterdam

kiriba-ru wrote:
I have tried at least five A6 drivers from BG and all worked with lightened switch.

My experience is also that the BLF-A6 driver is very tolerant for the lighted tail with varying led configurations and bleeder resistor values (unlike the X5/X6 driver which is extremely finicky!), it is just that l4p’s post above suggests a standard bleeder value for this driver while stock there is no bleeder at all, hence the question.
led4power
led4power's picture
Offline
Last seen: 19 hours 22 min ago
Joined: 12/29/2012 - 09:48
Posts: 1227
Location: Croatia,EU

Sorry for late reply, this driver has 470Ohm bleeder, I didn't even try to connect LED or see how modes are affected, point of test was to check if it works with regular resistor bleeder, and it does,but in combination with driver input caps that prevent rgb leds to stuck in red mode.

The_Driver
The_Driver's picture
Offline
Last seen: 19 hours 6 min ago
Joined: 10/20/2016 - 05:51
Posts: 1428
Location: Germany

I have an idea for an addition to your shop: The Osram LE UW Q8WP is basically a bigger version of the popular Osram Black Flat. It reaches the same luminance at maximum current, but is 80% larger, so the resulting hotspot is 80% larger and it produces 80% more lumens. It also does away with the three biggest downsides of the Osram Black Flat:

  1. The central solder pad is now electrically neutral
  2. The solder profile matches that of XP-LEDs (The Black Flat is smaller and doesn't center itself well)
  3. The Vf is much lower

It has a new downside though: the die is not centered on the package. It is shifted slightly in one direction. Can you envision offering a real copper (one piece) dtp-pcb specifically for this LED where the die is in the center of the pcb? This way the LED could be easily centered like other LEDs and we will have brighter ultra throwers!

 

I think quite a few people would be interested. You could do a poll to get an idea. I would be in for at least 5, maybe up to 10. 

led4power
led4power's picture
Offline
Last seen: 19 hours 22 min ago
Joined: 12/29/2012 - 09:48
Posts: 1227
Location: Croatia,EU

Thanks for suggestion, I will check, pcbs are not problem if there is interest (BLF Q8 pcbs are in production BTW).

led4power
led4power's picture
Offline
Last seen: 19 hours 22 min ago
Joined: 12/29/2012 - 09:48
Posts: 1227
Location: Croatia,EU

Added some Carclo and LEDIL optics:

https://led4power.com/product-category/optics/

 

 

kiriba-ru
kiriba-ru's picture
Offline
Last seen: 1 hour 54 min ago
Joined: 01/17/2016 - 02:34
Posts: 1934
Location: Russia

Pity that Angie wont fit cute-4 boards if youll make them…

led4power
led4power's picture
Offline
Last seen: 19 hours 22 min ago
Joined: 12/29/2012 - 09:48
Posts: 1227
Location: Croatia,EU

I will make both pcbs.

contactcr
Offline
Last seen: 51 min 42 sec ago
Joined: 05/19/2017 - 18:52
Posts: 2854
Location: US

Excited for these new PCB’s. Really enjoying my M2 quad w/ Luxeon V

vinte77
Offline
Last seen: 5 hours 22 min ago
Joined: 03/04/2014 - 18:43
Posts: 754
Location: California
led4power wrote:

I will make both pcbs.

Nice! I guess I’ll make another order once you have them available.

PH_Oton
PH_Oton's picture
Offline
Last seen: 8 months 6 days ago
Joined: 01/21/2014 - 08:15
Posts: 158
Location: Croatia

That anna makes me trigger happy Love
Especially if Sofirn makes 21700 C8F that accepts MCPCB for it. I can already see 7 Vees with 30T Innocent

thijsco19
Offline
Last seen: 8 hours 55 min ago
Joined: 12/14/2012 - 16:18
Posts: 1331
Location: Nearby Rotterdam, the Netherlands

Decided that I need to upgrade my convoy L2.
So just ordered a luxeon V on a MosDTP board together with a LD-B4 (set at 9A) and the ILC-1.

To be honest I forgot the check if the ILC-1 will fit in a L2 (first ‘new’ version, 17mm driver) but should fit right? Big Smile
Otherwise I will be ordering a S2..

led4power
led4power's picture
Offline
Last seen: 19 hours 22 min ago
Joined: 12/29/2012 - 09:48
Posts: 1227
Location: Croatia,EU

Could you please check brass retaining ring diameter on L2 tailcap? If it's ~19mm, then inner tailcap diameter should be ~18mm, which is the same as C8,S2... and ILC-1 should fit.

thijsco19
Offline
Last seen: 8 hours 55 min ago
Joined: 12/14/2012 - 16:18
Posts: 1331
Location: Nearby Rotterdam, the Netherlands

The switch board diameter is the same as the convoy C8. The dimensions of the retaining ring are not exactly the same, it’s 20.7mm on the L2 versus 18.8 on the C8.
So it’s a little bit bigger but I think that shouldn’t be a huge problem.

contactcr
Offline
Last seen: 51 min 42 sec ago
Joined: 05/19/2017 - 18:52
Posts: 2854
Location: US

It’s the height that will be a problem not the diameter. You can rig up something to add length to either side of the switch though. You will just need to be a bit more creative since it’s lighted. The washer from the L2 fwd switch is 2-3x as thick as the usual one which the ilc1 replaces

thijsco19
Offline
Last seen: 8 hours 55 min ago
Joined: 12/14/2012 - 16:18
Posts: 1331
Location: Nearby Rotterdam, the Netherlands

I’ve noticed. Luckily I have a 3d printer so should be able to make something to fix it.

led4power
led4power's picture
Offline
Last seen: 19 hours 22 min ago
Joined: 12/29/2012 - 09:48
Posts: 1227
Location: Croatia,EU

Added ILC-1 kit (called ILC-1B): ILC-1B kit

Price is more budget friendly than ILC-1: 6,97€

No brass ring needed, but top pcb should be glued with epoxy to prevent pcb/wires twisting during installation.

PCBs have 17mm diameter, so ILC-1B should fit in more lights.

Agro
Agro's picture
Offline
Last seen: 6 hours 39 min ago
Joined: 05/14/2017 - 11:16
Posts: 5021
Location: Ślōnsk

The_Driver wrote:

I have an idea for an addition to your shop: The Osram LE UW Q8WP is basically a bigger version of the popular Osram Black Flat. It reaches the same luminance at maximum current, but is 80% larger, so the resulting hotspot is 80% larger and it produces 80% more lumens. It also does away with the three biggest downsides of the Osram Black Flat:



  1. The central solder pad is now electrically neutral

  2. The solder profile matches that of XP-LEDs (The Black Flat is smaller and doesn’t center itself well)

  3. The Vf is much lower


It has a new downside though: the die is not centered on the package. It is shifted slightly in one direction. Can you envision offering a real copper (one piece) dtp-pcb specifically for this LED where the die is in the center of the pcb? This way the LED could be easily centered like other LEDs and we will have brighter ultra throwers!


 


I think quite a few people would be interested. You could do a poll to get an idea. I would be in for at least 5, maybe up to 10. 


led4power wrote:

Thanks for suggestion, I will check, pcbs are not problem if there is interest (BLF Q8 pcbs are in production BTW).


It would be especially interesting if you offered them with centring rings…
led4power
led4power's picture
Offline
Last seen: 19 hours 22 min ago
Joined: 12/29/2012 - 09:48
Posts: 1227
Location: Croatia,EU

There are new OSRAM leds that should replace that led and black flat, so I think it's a good idea to wait for tests.

The_Driver
The_Driver's picture
Offline
Last seen: 19 hours 6 min ago
Joined: 10/20/2016 - 05:51
Posts: 1428
Location: Germany
led4power wrote:

There are new OSRAM leds that should replace that led and black flat, so I think it’s a good idea to wait for tests.

Yes, definitely! A copper pcb for Osram 3030 LEDs make smore sense anyhow because it can be used for more types of LEDs (Osram Square, SSL etc.).

beam0
beam0's picture
Offline
Last seen: 1 year 4 months ago
Joined: 12/20/2011 - 23:18
Posts: 3195
Location: Pennsylvania

Considering LD-B4HV driver for 2S, where can I see a complete detailed description of the UI?

"Over 2000000 hours (about 200 years) standby time"  (DQG Tiny 4th)

"27,157 results for zoomable flashlight" (ebay)

 

 

led4power
led4power's picture
Offline
Last seen: 19 hours 22 min ago
Joined: 12/29/2012 - 09:48
Posts: 1227
Location: Croatia,EU

UI is the same as LD-A4/B4, please check datasheet for those drivers: https://led4power.com/downloads/

 

beam0
beam0's picture
Offline
Last seen: 1 year 4 months ago
Joined: 12/20/2011 - 23:18
Posts: 3195
Location: Pennsylvania

Thanks, so this driver also has capability to choose between current regulated or direct-driven high mode?

"Over 2000000 hours (about 200 years) standby time"  (DQG Tiny 4th)

"27,157 results for zoomable flashlight" (ebay)

 

 

led4power
led4power's picture
Offline
Last seen: 19 hours 22 min ago
Joined: 12/29/2012 - 09:48
Posts: 1227
Location: Croatia,EU

Yes.

beam0
beam0's picture
Offline
Last seen: 1 year 4 months ago
Joined: 12/20/2011 - 23:18
Posts: 3195
Location: Pennsylvania

Awesome.

"Over 2000000 hours (about 200 years) standby time"  (DQG Tiny 4th)

"27,157 results for zoomable flashlight" (ebay)

 

 

beam0
beam0's picture
Offline
Last seen: 1 year 4 months ago
Joined: 12/20/2011 - 23:18
Posts: 3195
Location: Pennsylvania

I need some advise for the LD-B4HV, I’m not really too technical on drivers, I can install them but don’t really know what makes them tick, therefore I have to ask some questions to make sure it will work for my application, so first I’ll give an overview about the light an my plan:

I’m upgrading a LedLenser, converting from 3C to Li-ion’s, I plan to run an XHP50.2 with 2*26650 in series (might end up using 2*21700) I have a solid brass pill with threaded connections to the head so I think it will shed heat fairly well, the driver wil be secured by retaining ring.

However the switch may be the weak link, it has a side switch (not an e-switch) but I’m not sure it’s current rating. I have a feeling it may be pretty good so I’m thinking the 4A-6A version would work. The switch works like a reverse clicky, once its fully clicked on you can do half presses (which currently only flashes the led off and on, since it’s single mode)

I’ve been looking at drivers from mtn, the choices (I thought) were a QLITE/zener mod or FET/zener mod, however after sort of deciding on the QLITE I was informed it would be better to use the MTN-MAXlp HP Buck Driver (1A-5.5A)

I was told the reason is the QLITE is a linear driver and since I’m using larger cells the difference between the input and output voltages would be too great.

I really like many of the features of this LD-B4HV, especially the adjustable current and CC/DD Enable/Disable for high. So now the questions:

  • Since this is also a linear driver, will it work good for my purpose, or will the voltage difference be too great since I’m not using smaller cells?
  • Is this also a zener mod?
  • Mode order set to Backward means It will start up on 100%?

"Over 2000000 hours (about 200 years) standby time"  (DQG Tiny 4th)

"27,157 results for zoomable flashlight" (ebay)

 

 

Pages