Combine DC to AC automotive power inverters

Discussion in 'Automotive Electronics' started by Karo Haowk Verro, Apr 4, 2016.

  1. Karo Haowk Verro

    Thread Starter New Member

    Apr 4, 2016

    I am merely an amateur when it comes to electronics but I have been wanting to combine two inverters together for more overall wattage.
    I have looked around and found nothing that encapsulates just that.
    So my idea would be to bridge the output at the capacitor stage in a parallel style connection.
    Given that the voltage of the capacitors are the same.
    The units have different wattage ratings.
    The units run independently.
    One unit is somewhat of a slave in this configuration.

    Is this possible? If not why?

  2. crutschow


    Mar 14, 2008
    It likely won't work well since the one that has the slightly higher output voltage will try to provide all the current.
  3. cmartinez

    AAC Fanatic!

    Jan 17, 2007
    Also, there's nothing guaranteeing that both inverters will be running in sync... that spells potential disaster
  4. Karo Haowk Verro

    Thread Starter New Member

    Apr 4, 2016
    Fair enough.
    I'm to curious i have to try to see what will happen.
    Ill keep an extinguisher close and keep you posted. Soon...
  5. tcmtech

    Distinguished Member

    Nov 4, 2013
    I doubt you will have a fire.

    What you will have is blown up output stage switching devices. As you increase your wattage draw past your units designed capacity the output switching devices will be getting ran beyond their designed amp limits thus leading to them popping.

    If you need more AC power buy a bigger inverter.
  6. Kermit2

    AAC Fanatic!

    Feb 5, 2010
    When a basic understanding of a technical field is missing and a person just sees something magical about the technology, there will be lots of wishful thinking and hope of magical outcomes.

    Reality is a jagged rock that dreamy oceans waves crash you against until you acknowledge their existence.

    nsaspook likes this.
  7. hp1729

    Well-Known Member

    Nov 23, 2015
    Are you trying to get more voltage out or more current?
    I think your answer is, "no".