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Looking for a reliable +5V and +12V PSU with low ripple

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    Looking for a reliable +5V and +12V PSU with low ripple

    Hello. I'd like to get suggestions for a reliable PSU with good caps and low ripple with +5V (adjustable), +12V and optionally -5V. I don't really need the -5V but it would be nice to have this output too.

    I've read good things about the Meanwell MWP-606A with 50mV ripple for the +5V output (the most important for my application) so I've called to an official distributor. Sadly this PSU is not produced anymore and the replacement they suggest me (TP-100A) has 100mV ripple noise, more than the 80mV of the RT-125A I'm currently using.

    Apart from this second PSU I plan to buy, I'd like to get cleaner outputs from my actual RT-125A, is using a line filter the way to go? if so, could you recommend me one or point me on what I should look for? my application (arcade boards) typically uses 2 to 5A, and the efficiency of this PSU is 80% if I recall correctly.

    I live in Europe, so being able to buy it from here is a big plus since import taxes are very high.

    Thank you in advance.

    #2
    Re: Looking for a reliable +5V and +12V PSU with low ripple

    I hope you find thi usage

    9 PC LCD Monitor
    6 LCD Flat Screen TV
    30 Desk Top Switching Power Supply
    10 Battery Charger Switching Power Supply for Power Tool
    6 18v Lithium Battery Power Boards for Tool Battery Packs
    1 XBox 360 Switching Power Supply and M Board
    25 Servo Drives 220/460 3 Phase
    6 De-soldering Station Switching Power Supply 1 Power Supply
    1 Dell Mother Board
    15 Computer Power Supply
    1 HP Printer Supply & Control Board * lighting finished it *


    These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

    1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
    2 Hem Saw Computer Stack Board

    All of these had CAPs POOF
    All of the mosfet that are taken out by bad caps

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      #3
      Re: Looking for a reliable +5V and +12V PSU with low ripple

      What effect does the 100mV have on the arcade board?
      Never stop learning
      Basic LCD TV and Monitor troubleshooting guides.
      http://www.badcaps.net/forum/showthr...956#post305956

      Voltage Regulator (LDO) testing:
      http://www.badcaps.net/forum/showthr...999#post300999

      Inverter testing using old CFL:
      http://www.badcaps.net/forum/showthr...er+testing+cfl

      Tear down pictures : Hit the ">" Show Albums and stories" on the left side
      http://s807.photobucket.com/user/budm/library/

      TV Factory reset codes listing:
      http://www.badcaps.net/forum/showthread.php?t=24809

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        #4
        Re: Looking for a reliable +5V and +12V PSU with low ripple

        Hi, I want to reduce ripple and noise to prolong the life of the arcade boards since they are very old. With some boards that are not so well built in some analog TVs I have observed some wavy noise across the screen, not sure if that's due to the RT-125A.

        Would a line filter help with this? could you recommend me one, or what features or certifications should I look for?
        Last edited by Y. Signal; 11-21-2018, 03:08 AM.

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