Recent content by Tinkerer99

  1. Tinkerer99

    Connecting two buck boost boards for a split supply?

    Thks for all the replies, Last attempt... Each converter gets its own separate linear power supply (transformer, bridge rect, smoothing cap). Now surely....!! ??
  2. Tinkerer99

    Connecting two buck boost boards for a split supply?

    Thanks Delta, Bertus, and Harald, How about this? What if I create a mid-voltage rail using discrete components at the input, like a virtual 0ve rail, creating a split supply? See pic? Wouldn't that work?
  3. Tinkerer99

    Connecting two buck boost boards for a split supply?

    https://www.makerfocus.com/products/dc-buck-converter-cooling-fan-lcd-display Low cost Chinese stuff. Bought a couple of days ago via Amazon. The item box had model dp60 label on it.
  4. Tinkerer99

    Connecting two buck boost boards for a split supply?

    Resistance between in/out common was 760k. Then I measure the + in/out and I got 2k resistance increasing up to 12k over 10 seconds. Guess something was charging up. Then I went back to the ground common and now it read open circuit. Can I assume it is isolated?
  5. Tinkerer99

    Connecting two buck boost boards for a split supply?

    Can I use a multimeter to figure out if the lines are isolated? If so, how?
  6. Tinkerer99

    Connecting two buck boost boards for a split supply?

    Hi folks, Just bought a cool buck boost converter which i'll power from a laptop power supply. Would there be a problem if I powered two of these and connected the +ve output of one board to the -ve output of the other to have a split supply? Thks
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