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Thread: New 4 Channel Highside driver

  1. #1
    Join Date
    Nov 2010
    Location
    Denmark
    Posts
    244

    Default New 4 Channel Highside driver

    UPDATE: Boards are in stock!

    UPDATE: Because of problems with customs, and a supplier that got greedy, I now have to buy all components from within the EU.

    Unfortunately this has affected the price a little. Price is 60 euros from now on.

    As some of you may know, I have been developing a Quad diode driver in co-op with Edison.

    Today I have finished testing and fine tuning the prototypes, and will be ready for mass production in about a week.

    I present QuadDrive 1:

    Click image for larger version. 

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    Board is 48x63mm with 4mm mounting holes.

    Each channel has its own modulation input. Perfect for mixed 660/640/445 builds.

    0-2A analog modulation + 0-0.5A bias for a total of 2.5A per channel.

    5-24V Supply voltage

    Standby beam suppression for blue LDs. (Can be disabled by jumpers).

    Price: 60 Euros


    /Thomas
    Last edited by Badpip; 09-28-2011 at 06:44. Reason: New price

  2. #2
    Join Date
    Feb 2010
    Location
    Melbourne, Australia
    Posts
    1,106

    Default

    Looking good Badpip!

  3. #3
    Join Date
    Apr 2009
    Location
    Seattle, WA
    Posts
    650

    Default

    Sounds great, so in theory, each driver could run 8 blue diodes at 1.25amps each right????

  4. #4
    Join Date
    May 2011
    Location
    Duisburg ,Germany
    Posts
    124

    Default

    Really nice...how can i get it?

  5. #5
    Join Date
    Dec 2008
    Location
    veenwouden
    Posts
    2,538

    Default

    Yes that,s right. better to put them in series tho. You have 12v as input power so 2 diodes on 1 channel is easy With a Kit like this you have a complete set to build a
    professionals quality Red laser. They are on sale in this thread:

    http://www.photonlexicon.com/forums/...ms-New-version.


    So we getting there guys not nessesary to buy an expencive Kvant, arctos, RGB lasersystems module anymore now we the DIY combo
    Attached Thumbnails Attached Thumbnails quad.jpg  

    P1090324.JPG  

    P1090248.JPG  


  6. #6
    Join Date
    Sep 2010
    Location
    Los Angeles
    Posts
    211

    Default

    Great news on the driver, congratulations.

  7. #7
    Join Date
    Apr 2008
    Location
    Amsterdam, NL
    Posts
    2,098

    Default

    Very nice concept driver, but aren't you dissipating allot of heat when driving red diodes on a 12V supply?

    for example, if you drive a red 640nm diode @ 300mA, Vop= 2V= 10V over the fet x 0.3A = 3W of heat generated for each fet = 12W of heat for the complete setup. thats allot of heat for 500mW of laser power. or am I seeing it wrong?


    The driver I use (also with blue beam, supression) made by a very skilled member of this forum uses a onboard SMPS to set power to the driver just above the Vop of the diode to get a very efficient driver.

  8. #8
    Join Date
    Nov 2005
    Location
    Melbourne, Australia
    Posts
    3,694

    Default

    It depends how many red diodes you have in series I guess.


    Quote Originally Posted by mccarrot View Post
    Very nice concept driver, but aren't you dissipating allot of heat when driving red diodes on a 12V supply?

    for example, if you drive a red 640nm diode @ 300mA, Vop= 2V= 10V over the fet x 0.3A = 3W of heat generated for each fet = 12W of heat for the complete setup. thats allot of heat for 500mW of laser power. or am I seeing it wrong?


    The driver I use (also with blue beam, supression) made by a very skilled member of this forum uses a onboard SMPS to set power to the driver just above the Vop of the diode to get a very efficient driver.
    KVANT Australian projector sales
    https://www.facebook.com/kvantaus/

    Lasershowparts- Laser Parts at great prices
    https://www.facebook.com/lasershowparts/

  9. #9
    Join Date
    Apr 2008
    Location
    Amsterdam, NL
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    2,098

    Default

    Quote Originally Posted by dave View Post
    It depends how many red diodes you have in series I guess.
    do you run your expensive 640 optnext in series?

  10. #10
    Join Date
    Nov 2005
    Location
    Melbourne, Australia
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    Default

    I don't see any problems running diodes in series, its a lot safer than parallel IMO
    KVANT Australian projector sales
    https://www.facebook.com/kvantaus/

    Lasershowparts- Laser Parts at great prices
    https://www.facebook.com/lasershowparts/

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