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Single phase to three phase little inverter circuit

Discussion in 'Electronic Design' started by max, Jul 23, 2007.

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  1. max

    max Guest


    i need a simple circuit for a Single phase to three phase inverter
    also 50Watt .
    Somebody knows where find a simple circuit?
  2. Paul Mathews

    Paul Mathews Guest

    If your load is fairly constant, you can use passive components to
    make a 'fooler box'.

    Small single-phase to 3-phase inverters are readily available and
    inexpensive on ebay.

    Paul Mathews
  3. JeffM

    JeffM Guest

  4. They are called VFD's and are a low cost commodity item.
    There is no possible way you could build one for the selling prive.

    Many thanks,

    Don Lancaster voice phone: (928)428-4073
    Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
    rss: email:

    Please visit my GURU's LAIR web site at
  5. A Scott-T transformer can convert 2-phase to three phase, not single
    phase to 3-phase, and no, the line voltage in US/Canada homes is not
    two phase, it's single phase with a centertap.

    There are a few approaches:

    - static phase converter
    - rotary phase converter
    - synthesize the three phases with electronics (inverter)

    As Don L. says the three phase inverters are low-cost commodity items
    (okay, also extremely costly military and aerospace items!) and you
    can purchase them off-the-shelf, in high and low power and high and
    low voltage versions.

    Best regards,
    Spehro Pefhany
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