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Thread: Affordable DC-DC psu, what is the deal with mini-box pw-70a

  1. #1
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    Affordable DC-DC psu, what is the deal with mini-box pw-70a

    Okay I know the opussolutions psu is good, but how about the minibox, pw-70a? I read some threads consedring voltages regulation. Is this still needed to add to the unit? The opossolutions psu are a bit expensive and even more to get them here in Holland, So i'm looking for an affordable efficient solution, not like an inverter.

  2. #2
    Raw Wave hijinks21's Avatar
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    yes it is needed unless you want to kill anything on the 12v rail
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  3. #3
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    looking for regulator layout

    Quote Originally Posted by hijinks21
    yes it is needed unless you want to kill anything on the 12v rail

    Ok I need a regulator, but what is the best one, I saw a few on the forum, but I need one that als works with voltages below 12.

  4. #4
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    If you use all laptop compenents which you probably should anyways because they are better suited for abuse in mobile environemnts then you don't have to worry about regulating the 12v. Everything on an Epia is 5v or 3.3, nothing uses 12volts. Laptop haddrives and cd-rom drives also use 5 volts.

    I've used it in my car without any problems for over 4 months now. I did post in another thread that I fried my motherboard but that wasn't because of this power supply.

    Also, the guy who designed this power supply is putting out a shutdown controller and possibly 12v regulator. I've contacted him a few times and he said that this component should be out in about 2 weeks although I wouldn't take that as gospel.

  5. #5
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    Quote Originally Posted by adamis
    If you use all laptop compenents which you probably should anyways because they are better suited for abuse in mobile environemnts then you don't have to worry about regulating the 12v. Everything on an Epia is 5v or 3.3, nothing uses 12volts. Laptop haddrives and cd-rom drives also use 5 volts.

    I've used it in my car without any problems for over 4 months now. I did post in another thread that I fried my motherboard but that wasn't because of this power supply.

    Also, the guy who designed this power supply is putting out a shutdown controller and possibly 12v regulator. I've contacted him a few times and he said that this component should be out in about 2 weeks although I wouldn't take that as gospel.

    No I'm not gona use laptop components, because I;ve got spare 3,5'hd and normal CD-rom somewahere.

    Working on shutdown and regulator....Hmmm we'll have to wait? As usual.....


    Thanks

  6. #6
    FLAC DodgeCummins's Avatar
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    You just need to supply 12v dc regulated to the PSU...about 7-10 amps worth.

    There are ways to do it...but if you have to buy something to supply that, the price of that regulated power plus plus the price of the PW-70 comes close to the opus.

  7. #7
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    Quote Originally Posted by adamis
    If you use all laptop compenents which you probably should anyways because they are better suited for abuse in mobile environemnts then you don't have to worry about regulating the 12v. Everything on an Epia is 5v or 3.3, nothing uses 12volts. Laptop haddrives and cd-rom drives also use 5 volts.
    Woah - really? I didn't know that. I have an EPIA, but have been waiting for the regulator/shutdown controller from the mini-box guy for some time thinking that I needed a good regulator solution before REALLY using my MB. I've been reading these forums for some time now, and have never read that the EPIA's don't use the 12V! I have a laptop HD for my only peripheral (well, besides the usb stuff), so from what you're saying, I should be good to go. This is good news indeed! Where'd you find out that it doesn't use the 12v rail?


    Quote Originally Posted by adamis
    Also, the guy who designed this power supply is putting out a shutdown controller and possibly 12v regulator. I've contacted him a few times and he said that this component should be out in about 2 weeks although I wouldn't take that as gospel.
    Yeah - he told me that too - about 2 weeks ago And his FAQ used to say it would be out in the summer. Fingers still crossed...breath not being held...

    Cheers,

    Taylor

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