LD-1 driver (5A pwm-less linear) info thread

Depending on price I’ll take 3-5. (Unless you want to trade me one for my RGBW_Clicky driver)

I want! I want! I want!

It’s been a long wait.

Good to see the project is still alive.

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I love the 1000mA - 5000mA jump… I think no one really uses the in-between currents anyways.

Definitely want one

Nice work. I may have some interest if they are for sale. Did you have to do the assembly yourself, or did they come with the component on them?

i have been waiting for this driver for a long time it is really one of the best drivers, the addition of this driver in any light makes it a much more quality light , but i hope for a good price also, so when we can buy it ?

I will finish OP and open separate selling thread,probably today.

They are manual assembled,but solder paste is applied with stainless steel stencil,which makes huge difference,solder joints look perfect to me,even 0402 aren't problem.

One small note on pcbs:manufacturer did a little error on bottom solder mask layer(red stuff),half of solder "moon" is covered,but it's easy fix,just scrap that part with scalpel or knife until you see copper,so you can bridge it with solder(only necessary if you want disable moonlight and/or enable timer on high).

I want to thank RaceR86(and Grumpy Cat) and TomE for ramping UI suggestions,now it's based on those suggestions and feels much much better,and also RaceR86,TomE,djozz and HKJ for extensive giveaway-prototype testing and suggestions.

I’m waiting for the selling thread…

Ciao

I want to buy 5 or more.

Great!

Gonna buy some of these for sure!

Led4power, you might link to your LD-1 sales thread in your OP here :wink:

Just bought 3, hardly can wait.

Can you recommend a European / German shop to buy sense resistors? I’d like to resistor mod one of the drivers to ~3A for a smaller light and will need the resistor. Somehow these larger, higher wattage sense resistors play hard-to-get.

When the driver is used in a light with both a tail switch and an e switch:

  • What does the driver do when the tail switch is closed? Does the LED come on, or do you have to press the side switch after the tail switch?
  • If the LED comes on, what mode is it in? Does the driver remember the last mode when the tail switch is turned off and back on?
  • Does the tail switch just enable the e switch to operate, or will the driver change modes when the tail switch is cycled?

5A (default) means that there is a way to get more?

what happened tp “turbo / DD” when closing Moon2 ?

I'll add link,thank for reminder.

Big distributors like Mouser,Digikey,Farnell and their local distributors usually have them. Good thing you reminded me,i will have range of those resistors in next batch,but I can do that for you in software for now,just tell me exact current on max. and do you also want other modes to be scaled down.

LED lights up in last stored mode,so just like there is no e-switch at all, they work independently,when you change modes with e-switch,modes aren't stored in EEPROM.

Theoretically you can (by stacking resistors)-see expander boards example.

Turbo is removed because current was just little a bit higher than 5A with xm-l2,too little difference to notice.

Is there any efficiency differences between resistor modded and software current limiting?

No.