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Thread: Multi-level driver for SSC P7 under $8 ?

  1. #1

    Default Multi-level driver for SSC P7 under $8 ?

    After I connected two ordinary 4x AMC7135 boards, I just thought this cheap board may also be able to connect to a multi-level driver to provide the current P7 needs.

    The multi-driver used is DX SKU.6190 5-mode or DX SKU.7612 16-mode Driver connect with DX SKU.1886 4x AMC7135 board

    Here's the connection chart:


    I didn't know how the MCU works, but I think it use PWM to drive AMC7135's VDD pin. Thus just connect many AMC7135s VDD together and they'll provide enough current to drive P7.

    From SilverFox's NiMH test, eneloop should be able to keep above 1.1v under 3A load. 4x eneloop should keep AMC7135 stay regulation. I'm waiting my other P7 and DHS heatsink. I haven't tried it yet, but I think it should be fine. Any suggestion?

    Thanks.

  2. #2
    Flashaholic* StefanFS's Avatar
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    Default Re: Multi-level driver for SSC P7 under $8 ?

    How did you connect the two ordinary 4 x AMC7135 drivers? Just in parallell? How did it work out?
    I have burned some drivers experimenting with my P7.

    Stefan

  3. #3

    Default Re: Multi-level driver for SSC P7 under $8 ?

    Hi Stefan,

    Yes, just in parallel. Here's the wire diagram:


    On DHS heatsink:


    Haven't finished the whole mod yet. Tested with 4x eneloop and the current is about 2.5A.

  4. #4
    Flashaholic* StefanFS's Avatar
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    Default Re: Multi-level driver for SSC P7 under $8 ?

    Looks good. I also tried that. Might still use it in a coming mod. Right now I get ~2.6-2.7A with direct driving on three NiMH cells. Works really well, but 2.5A might be better since it will run cooler.
    Stefan

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    Flashaholic* rizky_p's Avatar
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    Default Re: Multi-level driver for SSC P7 under $8 ?

    @NetKidz Can you post a pics showing P7 on top of DHS heatsink?

    Isnt that Dean connector is abit overkill? JST-XH is enough IMO.

    Really nice on the driver, cheap alternative...
    Last edited by rizky_p; 03-20-2008 at 06:20 PM.
    M@g 623->633, M@g 250, M@g 5761, Penta Cree Q2 M@g (Maxflex), 35w HID Spotlight mod,
    M@g Aspherical Q5, M@g P7, Triple M@g P7(DW)

  6. #6

    Default Re: Multi-level driver for SSC P7 under $8 ?

    @StefanFS

    I like regulation, so I decided to use 4x NiMH with AMC7135 instead of DD. But 2.5A is still hot.


    @rizky_p

    Yup, it's overkill. But I only have it laying around.

    Here's P7 on DHS heatsink:


    I sand of the centering ridges. I only have a small model drill and couldn't drill through the pedestal like Mac's Seoul P7 Mag. Due to the distance of the wires, I must enlarge the reflector hole a lot.

  7. #7
    Flashaholic zelda's Avatar
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    Default Re: Multi-level driver for SSC P7 under $8 ?

    What type of thermal compound do you use for the drivers?

    Zelda

  8. #8

    Default Re: Multi-level driver for SSC P7 under $8 ?

    Hi zelda,

    Arctic Alumina Thermal Adhesive.

  9. #9
    Flashaholic zelda's Avatar
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    Default Re: Multi-level driver for SSC P7 under $8 ?

    Thank you,

    zelda

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    Flashaholic* DaFABRICATA's Avatar
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    Default Re: Multi-level driver for SSC P7 under $8 ?

    I suggest a Uni-Bit for drilling very nice holes and for opening up holes on reflectors. It works great and leaves a nice finish.
    Flashlight Modifications available upon request
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  11. #11
    Enlightened
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    Default Re: Multi-level driver for SSC P7 under $8 ?

    Quote Originally Posted by NetKidz View Post
    Here's the connection chart:

    Any suggestion?

    Thanks.
    It works!

    -- M.

  12. #12
    Flashaholic MatajumotorS's Avatar
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    Default Re: Multi-level driver for SSC P7 under $8 ?

    Quote Originally Posted by NetKidz View Post
    After I connected two ordinary 4x AMC7135 boards, I just thought this cheap board may also be able to connect to a multi-level driver to provide the current P7 needs.

    The multi-driver used is DX SKU.6190 5-mode or DX SKU.7612 16-mode Driver connect with DX SKU.1886 4x AMC7135 board

    Here's the connection chart:


    I didn't know how the MCU works, but I think it use PWM to drive AMC7135's VDD pin. Thus just connect many AMC7135s VDD together and they'll provide enough current to drive P7.

    From SilverFox's NiMH test, eneloop should be able to keep above 1.1v under 3A load. 4x eneloop should keep AMC7135 stay regulation. I'm waiting my other P7 and DHS heatsink. I haven't tried it yet, but I think it should be fine. Any suggestion?

    Thanks.
    Nice Job!

    p.s. If you are familiar with programming, you could make controller switch one, 2 ,3 and all AMC at a time, to raise effeciency at low levels

  13. #13
    Flashaholic* rizky_p's Avatar
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    Default Re: Multi-level driver for SSC P7 under $8 ?

    Nice thanks.

    Quote Originally Posted by NetKidz View Post
    @StefanFS

    I like regulation, so I decided to use 4x NiMH with AMC7135 instead of DD. But 2.5A is still hot.


    @rizky_p

    Yup, it's overkill. But I only have it laying around.

    Here's P7 on DHS heatsink:


    I sand of the centering ridges. I only have a small model drill and couldn't drill through the pedestal like Mac's Seoul P7 Mag. Due to the distance of the wires, I must enlarge the reflector hole a lot.
    M@g 623->633, M@g 250, M@g 5761, Penta Cree Q2 M@g (Maxflex), 35w HID Spotlight mod,
    M@g Aspherical Q5, M@g P7, Triple M@g P7(DW)

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    Default Re: Multi-level driver for SSC P7 under $8 ?

    Quote Originally Posted by NetKidz View Post
    After I connected two ordinary 4x AMC7135 boards, I just thought this cheap board may also be able to connect to a multi-level driver to provide the current P7 needs.

    The multi-driver used is DX SKU.6190 5-mode or DX SKU.7612 16-mode Driver connect with DX SKU.1886 4x AMC7135 board

    Here's the connection chart:


    I didn't know how the MCU works, but I think it use PWM to drive AMC7135's VDD pin. Thus just connect many AMC7135s VDD together and they'll provide enough current to drive P7.

    From SilverFox's NiMH test, eneloop should be able to keep above 1.1v under 3A load. 4x eneloop should keep AMC7135 stay regulation. I'm waiting my other P7 and DHS heatsink. I haven't tried it yet, but I think it should be fine. Any suggestion?

    Thanks.
    What I can imagine is a 3 mode in a 4 C cell Maglite. 3 18650's fit in perfectly. So that is roughly 12 v @2.5 amp. I can imagine mode one- 2.5 amp, mode 2 -1.25 amp, and mode 3- .625 amp.

  15. #15
    Flashaholic smopoim86's Avatar
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    Default Re: Multi-level driver for SSC P7 under $8 ?

    Would it be possible to use one of those multimode drivers and one of these https://www.kaidomain.com/WEBUI/Prod...px?TranID=4338 instead of 2 of the others. If i understand correctly, the 8x is the same board, only stacked and bridged, correct?

  16. #16
    Flashaholic* TorchBoy's Avatar
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    Default Re: Multi-level driver for SSC P7 under $8 ?

    I don't see why not, as long as the right connections are made between the boards.
    No, a torch does not always mean flames.
    Ian.
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  17. #17
    Retired Administrator Norm's Avatar
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    Default Re: Multi-level driver for SSC P7 under $8 ?

    NetKidz any chance of buying 2 X DX SKU.1886 4x AMC7135 board boards from you? I don't really want to buy ten.
    Thanks Norm

  18. #18
    Flashaholic Tidra's Avatar
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    Default Re: Multi-level driver for SSC P7 under $8 ?

    Call me stupid, but I can't get any regulation when wire together two of those drivers.

    If I wire them together like showed in this post I got only 1.4A like from 4xAMC7135...

    If I just take a part (-) wire for the LED, then both drivers work like it supposed to, one with regulation modes up to 1A and another almost 1.4A, but together only 1.4A and no regulation,…

    What am I doing wrong???

    I removed diodes and wire jumper,...

    Thank you
    Iztok

  19. #19
    Flashaholic* StefanFS's Avatar
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    Default Re: Multi-level driver for SSC P7 under $8 ?

    Quote Originally Posted by Tidra View Post
    Call me stupid, but I can't get any regulation when wire together two of those drivers.

    If I wire them together like showed in this post I got only 1.4A like from 4xAMC7135...

    If I just take a part (-) wire for the LED, then both drivers work like it supposed to, one with regulation modes up to 1A and another almost 1.4A, but together only 1.4A and no regulation,…

    What am I doing wrong???

    I removed diodes and wire jumper,...

    Thank you
    Iztok
    I think a picture of it might help to identify what might have gone wrong.
    Stefan

  20. #20
    Flashaholic smopoim86's Avatar
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    Default Re: Multi-level driver for SSC P7 under $8 ?

    Quote Originally Posted by Norm View Post
    NetKidz any chance of buying 2 X DX SKU.1886 4x AMC7135 board boards from you? I don't really want to buy ten.
    Thanks Norm
    The p7 driver on KD is just two of them sandwiched in parallel.

  21. #21

    Default Re: Multi-level driver for SSC P7 under $8 ?

    Hi Tidra,

    What batteries did you use?

    Thanks.

  22. #22
    Flashaholic Tidra's Avatar
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    Default Re: Multi-level driver for SSC P7 under $8 ?

    This is the two of them wired together,...



    RED wire= + for Vin and LED
    BLACK wire= - for Vin
    2x YELLOW wires= - for LED
    1x YELLOW wire= - for second driver
    WHITE wire= + control for second driver

    This way I only got 1.4A OUT what is equal to 4xAMC7135 and no regulation.
    If I separate two yellow wires, then both drivers works correctly, one with multi level’s up to 1A and another with 1.4A, but together no regulation and only 1.4A

    For testing I don't use battery but DC Power Supply capable of 0-30v/5A, so this should not be a problem.

    One more thing, multi level driver is from KAI and 4xAMC7135 is from DX is there an option that the multi level driver from KAI is different than from DX???

    Thank you
    Iztok

  23. #23
    Flashaholic* TorchBoy's Avatar
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    Default Re: Multi-level driver for SSC P7 under $8 ?

    Tidra, did you need to make solder bridges on the 4 x AMC7135 board, to enable the extra three chips? As they used to come they only had one functioning.
    No, a torch does not always mean flames.
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  24. #24
    Flashaholic* StefanFS's Avatar
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    Default Re: Multi-level driver for SSC P7 under $8 ?

    Iztok,

    I do it like this:



    I solder battery + to the + pad on the underside of the multimode driver and battery - to the ring on the multimode. My MM drivers are also from KaiD. I've done four so far and all work as they should. Do you get 1.4A from the 4xAMC7135 driver and you haven't soldered contact bridges on it? Maybe that's not necessary anymore.
    Stefan

  25. #25
    Flashaholic Tidra's Avatar
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    Default Re: Multi-level driver for SSC P7 under $8 ?



    It's ALIVE,…

    I took two other drivers one with multi level control and one with 4x AMC71335, but this time I didn't remove any diodes and two of them join forces and give me 2.4A @ minimum 4V, when voltage drops below the high output current drops too. So I guess the full 2.4A on output will be first few seconds on one D Li-Ion, but on 3x NiMh would be more, because nominal voltage on fully charged NiMh’s is higher.

    Cheers,
    Iztok

  26. #26

    Default Re: Multi-level driver for SSC P7 under $8 ?

    just out of curiousity, do any of you guys know what your doing?

    i'm taking electrical engineering, and thought i might built a high ampere voltage booster from scratch for the p7 to a) test what i've learned b) make a single wafer voltage booster for p7 and beyond and c) have somthing to show come graduation.

    anyways, i've been reading over what eveyone is saying it sounds like most of you are useing a trial and error approch.

    so back to my previous question. do any of you have any knowlege of what your doing? either self taught or institutional, or are learning from trial and error?

    i'm not trying to be rude, just inquisitive.

  27. #27

    Default Re: Multi-level driver for SSC P7 under $8 ?

    Quote Originally Posted by Cmd_Bash View Post
    anyways, i've been reading over what eveyone is saying it sounds like most of you are useing a trial and error approch.
    I guess this is not a trial and error approach. This is I don't know where to solder the cables and I am doing it wrong. Since there is not an inexpensive available driver specifically designed for SSC P7 LED then people is trying to use what is currently available to create a franken-driver.

    Juan C.

  28. #28
    Flashaholic smopoim86's Avatar
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    Default Re: Multi-level driver for SSC P7 under $8 ?

    I'm thinking about doing this, but adding a 350ma AMC7135 so that I will get 2.85A at high.

    I just wish my parts from dx would show up (so impatient).

  29. #29
    Retired Administrator Norm's Avatar
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    Default Re: Multi-level driver for SSC P7 under $8 ?

    Quote Originally Posted by NetKidz View Post
    Haven't finished the whole mod yet. Tested with 4x eneloop and the current is about 2.5A.
    Hi Stephan have you measured the current to the LED? I built this up and I get around 2.5 to the board just wonder what the LED sees. I'm guessing about 2A.
    Norm

  30. #30
    Flashaholic* rizky_p's Avatar
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    Default Re: Multi-level driver for SSC P7 under $8 ?

    I had to use 5 Sanyo 2700 to get Full 2.8A(maybe the batteries?) Battery draws = current to LED right? since this is DD. I did not removed the diodes or should i? what is the difference?

    Thanks.
    M@g 623->633, M@g 250, M@g 5761, Penta Cree Q2 M@g (Maxflex), 35w HID Spotlight mod,
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