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Thread: Only one PSU into RGB projector.

  1. #11
    Join Date
    Feb 2010
    Location
    NJ
    Posts
    270

    Default

    While this is more expensive at a hair under $200 for open frame and $208 for enclosed, here's a nice little +/- 24v PSU. If we can get 10 orders, they drop to about $150. Granted, it's a lot more expensive than wiring up a couple of single output 24v supplies, but for the electrically challenged like myself, here's a clean, factory built option:

    SRW-115-2004 http://www.psui.com/pdf/srw115.pdf

  2. #12
    Join Date
    Jun 2011
    Location
    Post Falls Idaho, USA
    Posts
    312

    Default

    Ive got two 220v 60A 5vdc supplys. Manufacturer sent me wrong voltage, its not for US market. new unused for 45 each.

  3. #13
    Join Date
    Mar 2011
    Location
    Chicago area, IL
    Posts
    216

    Default Detailed Info on how to use a PC supply for your Projects

    Hi Guys,

    Remembering that Steve Milani posted this thought I'd follow up --- I am in the same boat Steve found himself in - wanting to go to one PC power supply for my PJ.
    Here is a GREAT resource written by a good friend of mine that talks about (in great detail) how to load the supply to get it to switch on along with some other details:

    http://www.flyinggiants.com/forums/s...t=frankenpower

    I already did this once to get a cheap XT supply for a battery charging source for my model airplane batteries, all it took was a couple power resistors that summed to 10 ohms at 10 watts and a mod to tell the supply to turn on.

    Now, looking at the pic you can see I've been using a homebuilt (analog) +/- V supply for the correction amp, a sola 5V supply for Red.... Unfortunately I don't have +12VDC available for my 1 Watt blue which is why you see that big 'ol battery LOL.

    I ran a quick test by using the switching PC supply rather than the old analog and the projection looked ok... So yes, you can use a single supply. I DID have a difficult time finding an older XT power supply though, I noticed the newer ones don't always have -5VDC (not a problem if you need -12VDC instead).

    I'll post a report when the conversion is done....

    P.S. Model R/C airplanes is a whole 'nuther addiction!
    Attached Thumbnails Attached Thumbnails Gettin ready to convert to PC supply 2.JPG  

    RG Projection 2.JPG  


  4. #14
    Join Date
    May 2008
    Location
    Once it was called "Bel Paese" = ITALY
    Posts
    858

    Default

    Hi Jason!

    Thanks a lot for precious infos you gave me (us)

    I'm just returned (few minutes ago, really!) from Mexico.... A short vacancy looking for warm temperatures, nice beaches and clean waters...
    As I'm still under "jet-lag" after more than 14 hours in flight....
    Next days I'll try to build the "only-one-PSU" unit.

    Greetings!
    my webpage
    http://stevemilani.jimdo.com
    Skype ID: stevemilani957

    my RGB analogue projectors:
    3.9 W (640/532/445) 30kpps
    2.6 W (655/532/450) 30kpps
    2.5 W (638/532/450) 30kpps
    0.7 W (test unit)(635/532/473) 18kpps

  5. #15
    Join Date
    Dec 2013
    Posts
    1

    Default

    Usually if I want to change the hair style I will buy the cheap hair wigs at the online shop so that it will neither cost me a lot and I can reach the goal of change my hair style easily. And just a week before I bought one blonde wigs online and it makes me look better.
    Last edited by MaxieMelve02; 12-22-2013 at 22:40.

  6. #16
    Join Date
    Jan 2007
    Location
    Florida
    Posts
    4,382

    Default

    ^^ LOL .. these spam bots are humorous at times. Usually annoying but occasionally funny when posting something completely arbitrary like that in a power supply thread .

  7. #17
    Join Date
    May 2008
    Location
    Once it was called "Bel Paese" = ITALY
    Posts
    858

    Default

    Some people believe to be humorous, instead are just mannerless...

    What about his first post?
    I think: the worst way to introduce himself to the community.

    my webpage
    http://stevemilani.jimdo.com
    Skype ID: stevemilani957

    my RGB analogue projectors:
    3.9 W (640/532/445) 30kpps
    2.6 W (655/532/450) 30kpps
    2.5 W (638/532/450) 30kpps
    0.7 W (test unit)(635/532/473) 18kpps

  8. #18
    Join Date
    Jan 2007
    Location
    Florida
    Posts
    4,382

    Default

    Don't get me wrong Steve, I'm not condoning this, I was simply amused for a bit .

    It makes me want to go to a tech forum and in the middle of a highly technical discussion, post something like "When my underwear gets dirty, I like to wash it in Gain for that springtime fresh smell coming from my pants"

    (Of course I wouldn't ever do that) ..
    Last edited by steve-o; 12-21-2013 at 13:05. Reason: added brilliant idea

  9. #19
    Join Date
    May 2008
    Location
    Once it was called "Bel Paese" = ITALY
    Posts
    858

    Default

    No problem mate.
    I understood what your words meant for.
    You wasn't the target of my reply-post

    My post was directed to "Mr. Spam" (see post #15)
    For sure I am not use to read this sort of "foolish-humor"... Maybe I haven't fully understood what that phrases want mean for (each people has its own way to make humor...). Maybe I am little susceptible too... My apologies.

    Anyway... Christmas is approaching, so we all have to be kind each other... then...the case is closed. Definitely.



    (p.s. I use double-face (reversible) underpants... This way I can go til when Summer will be! )
    my webpage
    http://stevemilani.jimdo.com
    Skype ID: stevemilani957

    my RGB analogue projectors:
    3.9 W (640/532/445) 30kpps
    2.6 W (655/532/450) 30kpps
    2.5 W (638/532/450) 30kpps
    0.7 W (test unit)(635/532/473) 18kpps

  10. #20
    Join Date
    Jan 2007
    Location
    Florida
    Posts
    4,382

    Default

    No apology necessary Steve .. Merry Christmas to you and yours
    I've got to get a pair of those reversible underpants .. they sound awesome
    Cheers

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