High efficient 5A/9A Buck Converter for SST-50, SST-90

[Der Wichtel]

Aluminum Oxide Al2O3 is commonly used as electr. insulator ( ceramic). It doesn't conduct any electricity but heat.

[DFiorentino]

Ah, but doesn't the aluminum in the potting compound conduct electricity?

"Aluminium oxide is an electrical insulator but has a relatively high thermal conductivity (30 Wm−1K−1[4]) for a ceramic material."

Quoted from Wikipedia article on Aluminum oxide.

I've been potting electronics with aluminum oxide/epoxy mix for years with zero issues.

-DF

[cdrake261]

"Aluminium oxide is an electrical insulator but has a relatively high thermal conductivity (30 Wm−1K−1[4]) for a ceramic material."

Quoted from Wikipedia article on Aluminum oxide.

I've been potting electronics with aluminum oxide/epoxy mix for years with zero issues.

-DF

Ah...I just might have to order the 9amp model, what's the total to have it shipped to the USA?

[Der Wichtel]

depends on the driver version, have a look at the first page

[cdrake261]

depends on the driver version, have a look at the first page

The fixed 9amp version, I prefer only one mode...Brightly high mode.

[Der Wichtel]

total is 38.45€

[cdrake261]

total is 38.45€

so $54.70 USD sounds right?

[Der Wichtel]

I only accept Euro but you can let paypal do the conversion.

[snijok]

DerWichtel, about this 9A driver.. Can it be used as a current source of 9A to anything else, not just LED? In particular, Peltier element?

[Der Wichtel]

Yes, it can be used as a current source

[netprince]

I would like...

9A driver, standard version, $35 euro
registered international shipping, $4.50 euro

Would it be possible to have all wires soldered to the side with the coil? It will help me heatsink the component side a bit easier. If that is not possible, no big deal.

I can send paypal after you confirm stock and price.

Thanks!

[Der Wichtel]

that is no problem and I have the drivers in stock as well.

[netprince]

thanks!

[Rando]

Package received, looks nice. Wish I had time to do it right now.

Thanks.

[Marktgraf]

Hi !

Is it possible to bridge the adjust. version of the Buck at 9 Ah, so i can use later a Poti ? I don't know at the moment if i should use the dimming function

With friendly regards,

Marktgraf

[Der Wichtel]

yes that is possible

[Joh]

Hi Wichtel,

how could i buy once of the greatest heatsik i've ever seen?
Please Pm me.

Joh

[schurl]

Hi Wichel

please check your post !
i sent u 2 mails ! (from: georg@........at)

thx !!

georg :-)

[schurl]

@ der wichtel:
thx for reply, please check your spambox again ;-)

georg :-)

[pyro]

Hi !

Is it possible to bridge the adjust. version of the Buck at 9 Ah, so i can use later a Poti ? I don't know at the moment if i should use the dimming function

With friendly regards,

Marktgraf

Is it necessary to bidge the pot connections or does it work without potentiometer?

[Der Wichtel]

the adjustable version must be bridged if used without potentiometer. Otherwise it is set to the lowest output value.

EDIT: no need to brigde anything

[DKlaser]

Ok, I want one of these for my sst-90 maglite build. Which version of this do I need to get over 2k lumen with a single emitter? Also do you sell the emitters? If not can you give me a part number recommendation for maximum light output? Ok I just saw your thread about the heatsinks as well. Will this driver mount to the heatsink easily?

[Der Wichtel]

Hi !

Is it possible to bridge the adjust. version of the Buck at 9 Ah, so i can use later a Poti ? I don't know at the moment if i should use the dimming function

With friendly regards,

Marktgraf

Is it necessary to bidge the pot connections or does it work without potentiometer?

the adjustable version must be bridged if used without potentiometer. Otherwise it is set to the lowest output value.

sorry, what I said was wrong. There is no need to bridge anything. Without potentiometer the driver is set to its highest output.

[Der Wichtel]

Ok, I want one of these for my sst-90 maglite build. Which version of this do I need to get over 2k lumen with a single emitter? Also do you sell the emitters? If not can you give me a part number recommendation for maximum light output? Ok I just saw your thread about the heatsinks as well. Will this driver mount to the heatsink easily?

you'll need the 9A driver, adjustable or non-adjustable. The driver fits into the heatsink.
As for the SST-90 I don't sell them you'll need the "N" bin to get the highest output. example SST-90-W65S-F11-GN100 BIN WN

Just send me a pm and I'll give you the email address where you can but the LEDs.

[DKlaser]

PM sent please get back to me. I want to get this stuff on the road.

[Der Wichtel]

sorry but 20mm is almost impossible

[Diman]

Hi there

I'd like to build a light source for my Jeep with a number of SST-90 emitters. I have almost everything of the build figured out except for driving the beasts!
Thank god for you and your drivers, I've been looking like crazy :-)

Car install means 12-14Vin - depending on car on car off, load, etc. I believe I can drive a series of three SST-90s with one driver at these voltages.
SST-90 WN bin at 6500k speced to top 3.8V Vf so it puts me very close to Vin. I still need to heatsink driver (which I'd do anyway to prolong its life).
Please correct me if I'm wrong with my calculations.

Is there anything that i've missed or need to bare in mind when building such application?

Thanks!

[Diman]

no thoughts at all :-) ?

[Der Wichtel]

sure, have a look at a few previos pages
http://www.candlepowerforums.com/vb/...=1#post3499993

You shouldn't use more than 2 LEDs in series because the car voltage can drop below the minimum voltage needed for 3 LEDs.

[Diman]

alright, thanks.
Two leds in series is good enough, It's going to be a very fun project.
I just learned that the place where i was going to buy sst-90s from no longer has them.
and finding sst-90 WN (I believe it's the same as GN101) is proving to be more difficult than i thought.

Do you have drivers in stock?