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Thread: Flexmod2 & 445 diode current

  1. #1
    Join Date
    Apr 2009
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    Adelaide , Australia
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    Default Flexmod2 & 445 diode current

    Hi All ,

    Just got my 2 diodes in the mail today ... Have housed them in an O-Like housing with glass lense and soldered Lasorb directly onto the anode/cathode.

    Without having a thermal power meter at a guess if im running these diodes at around 750mA am i likely to be getting around 400-500mW output. Very little heat around the module itself over a 2 hour run allthough the flexmod was getting rather toasty

    If I am to run them at say 1.5A i would need to resolder the low to high jumper on the flexmod2 right ? and this would give me 1000mW output ?

    Cant wait to incorporate them into the projector im building.

    Cheers

    Brett

  2. #2
    Join Date
    Dec 2008
    Location
    Southport, UK
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    Default

    Providing that you have >9v supply you can drive them at 1A without reconfiguring your Flexmod by wiring the diodes in series.

    You then keep the over voltage protection facility of the Flexmod.
    http://img62.imageshack.us/img62/3985/laser.gif

    Doc's website

    The Health and Safety Act 1971

    Recklessly interfering with Darwinís natural selection process, thereby extending the life cycle of dim-witted ignorami; thus perpetuating and magnifying the danger to us all, by enabling them to breed and walk amongst us, our children and loved ones.





  3. #3
    Join Date
    Apr 2009
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    Adelaide , Australia
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    Default

    Thanks for that info Doc

    I've just noticed that it my last post it looks as though i want to run the diodes as a dual setup ... errmmm a little too much power for me at moment .. my bad.

    Question above about running at 1.5A refers to one diode only or is it likely to go pop.

    -Brett

  4. #4
    Join Date
    Feb 2008
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    East Sussex, England
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    Default

    I'm getting about 520mW at 730mA through a 405 coated glass Aixiz lense if thats any help

  5. #5
    Join Date
    Dec 2008
    Location
    Southport, UK
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    Default

    You will have to reconfigure the driver for 1.5A, I think you will need TEC cooling and have to expect a shorter life.
    http://img62.imageshack.us/img62/3985/laser.gif

    Doc's website

    The Health and Safety Act 1971

    Recklessly interfering with Darwinís natural selection process, thereby extending the life cycle of dim-witted ignorami; thus perpetuating and magnifying the danger to us all, by enabling them to breed and walk amongst us, our children and loved ones.





  6. #6
    Join Date
    Apr 2009
    Location
    Adelaide , Australia
    Posts
    70

    Default

    Thanks for that Norty ... think i might keep it down around 800mA ... I did try what i thought was an aixiz 405 coated lense but got crappy beam quality / divergence ... stuck with the 405 lense that came with the O-Like and got much better results

    *yawns*

    2am here ... time for bed

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