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

  1. #151

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

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

  2. #152

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

    Quote Originally Posted by cdrake261 View Post
    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
    KineticParadox ...a personal web space with my CBA Battery Testing and my LED Bin Coding Charts.

  3. #153
    Flashaholic cdrake261's Avatar
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    Default Re: High efficient 5A/9A Buck Converter for SST-50, SST-90

    Quote Originally Posted by DFiorentino View Post
    "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?

  4. #154

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

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

  5. #155
    Flashaholic cdrake261's Avatar
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    Default Re: High efficient 5A/9A Buck Converter for SST-50, SST-90

    Quote Originally Posted by Der Wichtel View Post
    depends on the driver version, have a look at the first page
    The fixed 9amp version, I prefer only one mode...Brightly high mode.

  6. #156

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

    total is 38.45€

  7. #157
    Flashaholic cdrake261's Avatar
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    Default Re: High efficient 5A/9A Buck Converter for SST-50, SST-90

    Quote Originally Posted by Der Wichtel View Post
    total is 38.45€
    so $54.70 USD sounds right?

  8. #158

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

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

  9. #159
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    Default Re: High efficient 5A/9A Buck Converter for SST-50, SST-90

    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?

  10. #160

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

    Yes, it can be used as a current source

  11. #161

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

    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!

  12. #162

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

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

  13. #163

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

    thanks!

  14. #164
    Flashaholic Rando's Avatar
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    Default Re: High efficient 5A/9A Buck Converter for SST-50, SST-90

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

    Thanks.

  15. #165
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    Default Re: High efficient 5A/9A Buck Converter for SST-50, SST-90

    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

  16. #166

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

    yes that is possible

  17. #167
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    Default Re: High efficient 5A/9A Buck Converter for SST-50, SST-90

    Hi Wichtel,

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

    Joh

  18. #168

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

    Hi Wichel

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

    thx !!

    georg :-)

  19. #169

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

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

    georg :-)

  20. #170
    Flashaholic pyro's Avatar
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    Default Re: High efficient 5A/9A Buck Converter for SST-50, SST-90

    Quote Originally Posted by Marktgraf View Post
    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?

  21. #171

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

    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

  22. #172

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

    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?
    Last edited by DKlaser; 09-24-2011 at 07:10 PM.

  23. #173

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

    Quote Originally Posted by Marktgraf View Post
    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
    Quote Originally Posted by pyro View Post
    Is it necessary to bidge the pot connections or does it work without potentiometer?
    Quote Originally Posted by Der Wichtel View Post
    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.

  24. #174

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

    Quote Originally Posted by DKlaser View Post
    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.

  25. #175

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

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

  26. #176

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

    sorry but 20mm is almost impossible

  27. #177
    Enlightened
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    Default Re: High efficient 5A/9A Buck Converter for SST-50, SST-90

    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!

  28. #178
    Enlightened
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    Default Re: High efficient 5A/9A Buck Converter for SST-50, SST-90

    no thoughts at all :-) ?

  29. #179

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

    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.

  30. #180
    Enlightened
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    Default Re: High efficient 5A/9A Buck Converter for SST-50, SST-90

    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?

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