adjusting a 12V inverter to 24V

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  • eccerr0r
    Solder Sloth
    • Nov 2012
    • 8701
    • USA
    #1

    adjusting a 12V inverter to 24V

    Anyone hacked a 12V inverter for use at 24V?
    Wonder how much of a problem it is to do such. Other than the fan that seems to be a 12V unit that will need to be replaced with a 24V unit, as well as input filter capacitors that tend to be rated at 16 to 25V that will likely need to be increased to at least 35V, any other possible issues that need to be addressed?
    Tags: None
    • stj
      Great Sage 齊天大聖
      • Dec 2009
      • 31040
      • Albion
      #2
      Re: adjusting a 12V inverter to 24V

      you probably need to look at the circuit,
      how does it power the control circuits? does it use a chip etc.

        Comment

        • CapLeaker
          Leaking Member
          • Dec 2014
          • 8177
          • Canada
          #3
          Re: adjusting a 12V inverter to 24V

          Never tried such a thing. But just thinking about it, I don’t think it is going to be simple.
          Besides the caps, what about the mosfets, transformers etc.?

            Comment

            • petehall347
              Badcaps Legend
              • Jan 2015
              • 4426
              • United Kingdom
              #4
              Re: adjusting a 12V inverter to 24V

              looking at prices for new ones 12 and 24 are same price so guess they aren't too different inside

                Comment

                • eccerr0r
                  Solder Sloth
                  • Nov 2012
                  • 8701
                  • USA
                  #5
                  Re: adjusting a 12V inverter to 24V

                  I suppose I am targeting the chip based SMPS ones, and not the dumb inverters like the Heathkit MP-10 which are more problematic. hoping for a bit of a efficiency improvement - but more of just trying to sort of unify all electrical backup equipment without buying anything...

                    Comment

                    • petehall347
                      Badcaps Legend
                      • Jan 2015
                      • 4426
                      • United Kingdom
                      #6
                      Re: adjusting a 12V inverter to 24V

                      this should give you some clues .. https://www.youtube.com/watch?v=aPRSq-quzj8

                        Comment

                        • eccerr0r
                          Solder Sloth
                          • Nov 2012
                          • 8701
                          • USA
                          #7
                          Re: adjusting a 12V inverter to 24V

                          those old Heathkit MP-10 would require a transformer rewind, but hoping SMPS could just deal with it by changing duty cycle ...

                            Comment

                            • CapLeaker
                              Leaking Member
                              • Dec 2014
                              • 8177
                              • Canada
                              #8
                              Re: adjusting a 12V inverter to 24V

                              I think you are going to be in for more than just the duty cycle and a few caps.

                                Comment

                                • eccerr0r
                                  Solder Sloth
                                  • Nov 2012
                                  • 8701
                                  • USA
                                  #9
                                  Re: adjusting a 12V inverter to 24V

                                  Haven't tried pumping to 24V but I have a 300W inverter that I ran 18V.... fan was roaring (since it was a 12V unit) but at least it worked...
                                  I don't know yet what happens if I tried upwards 32V... magic smoke release maybe...

                                    Comment

                                    • CapLeaker
                                      Leaking Member
                                      • Dec 2014
                                      • 8177
                                      • Canada
                                      #10
                                      Re: adjusting a 12V inverter to 24V

                                      Try it and let us know what happened. Lol

                                        Comment

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