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Thread: Dual drivers, and new revision quad drivers in stock

  1. #1
    Join Date
    Nov 2010
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    Denmark
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    Laser Warning Dual drivers, and new revision quad drivers in stock

    Based on feedback the quad drivers has had a few changes
    Click image for larger version. 

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    What's new:
    Input/output pads changed so standard 0.1" molex connectors can be mounted
    Groundplane changed to make soldering wires easier
    Beam suppression jumpers replaced by a single solder jumper, that will enable beam suppression on all channels in one go
    Solder jumpers on the back of the board to bridge the modulation inputs
    Test points to measure current with a diode connected (0.1V / A)

    Rest of specs remains the same:

    Board size: 63x48mm
    Output current: 0-2A modulation, 0-0.5A bias (2.5A total)
    4 separate modulation inputs
    5-24V supply voltage

    Price stays at 60 euro.

    Lots of people have asked me to do a dual channel version, so here we go:

    Click image for larger version. 

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    Same specs as the quad above, just half the number of channels

    Board size: 36x48mm

    Price: 40 euro.

    /Thomas
    Last edited by Badpip; 05-27-2012 at 08:43.

  2. #2
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    Default

    Do these use separate power inputs for each driver or one common supply? If a common supply I am assuming you could go with a 12v 10A supply so that you could drive each channel at full power, I series my blues, so I need the higher voltage, but how does this effect using it also for red. It seems like a lot of voltage to sink. What heat sinking is recommended? Thanks
    leading in trailing technology

  3. #3
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    Quote Originally Posted by polishedball View Post
    Do these use separate power inputs for each driver or one common supply? If a common supply I am assuming you could go with a 12v 10A supply so that you could drive each channel at full power, I series my blues, so I need the higher voltage, but how does this effect using it also for red. It seems like a lot of voltage to sink. What heat sinking is recommended? Thanks
    Power input is common for all channels. Heatsinking depends on how much voltage the FETs has to "eat".

    2 blues in series, with a 12V supply will not create much heat, so a small scrap piece of aluminum will be enough cooling.

    How much heat the red will generate depends on your drive current, what diodes are you using and how many?

    /Thomas

  4. #4
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    Excellent news Thomas, I was going to ask you what happened to the dual version!

    I have some odds and sods to finalise in my head and you will be hearing from me within the coming month
    "its called character briggs..."

  5. #5
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    What is the maximum voltage?

    chad


    When the going gets weird, the weird turn pro.


  6. #6
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    Quote Originally Posted by LaNeK779 View Post
    Excellent news Thomas, I was going to ask you what happened to the dual version!
    It's right here

    Quote Originally Posted by chad View Post
    What is the maximum voltage?
    Oh yes, forgot about that, just added it to the specs

    Supply voltage = 5 to 24V

    /Thomas

  7. #7
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    Aug 2008
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    I've got one of the quad drives and i absolutely love it. It's just a case of adjusting the bias to just below threshold then applying 5v mod and setting the gain to the maximum current for the diode.
    So unbelievably easy to set up, even for me

  8. #8
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    Feb 2010
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    Melbourne, Australia
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    Yes, the quad is a great driver. Thomas has done an excellent job. I wish I hadn't wasted my money buying 3 of Phritzler's.

    Now if only we could get a single channel with beam suppression from Thomas

  9. #9
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    Dec 2008
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    Why not buy a dual and use one channel. Its already great that thomas was willing to spend a huge amount of time in developing high quality drivers. I think supporting him and buy a dual would be appreciated. Development cost money so start spending first


    Interested in 6-12W RGB projectors with low divergence? Contact me by PM!

  10. #10
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    May 2008
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    Portland, Oregon
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    Quote Originally Posted by RGbee View Post
    I've got one of the quad drives and i absolutely love it. It's just a case of adjusting the bias to just below threshold then applying 5v mod and setting the gain to the maximum current for the diode.
    So unbelievably easy to set up, even for me
    Completely agree to this. I have four of these drivers and love them. I'm REALLY BAD on hooking things up. So if I can hook them up anyone can.

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