230 V / 5 Hz AC voltage source

Discussion in 'The Projects Forum' started by tomaz, Mar 19, 2009.

  1. tomaz

    Thread Starter New Member

    Dec 4, 2008
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    0
    I would like to design 230 V voltage source with frequency about 5 Hz. How to do this, because transformer is not a good idea. The DC source is 6 V. AC voltage source should be about 5W. Any suggestion, maybe link?
     
  2. t_n_k

    AAC Fanatic!

    Mar 6, 2009
    5,448
    782
    I don't like your chances ....

    One approach might be to first invert / convert the 6V DC to a high voltage DC bus value - this can be done at high frequency and the design is possible.

    Once you have the high voltage DC bus, this could be (PWM?) inverted - e.g. direct off a MOSFET H-bridge - to your required 220V at 5Hz. Depends very much on how pure you want the AC waveform. If you need a clean sinusoid then the AC filtering demands will be problematic at 5Hz.
     
  3. t_n_k

    AAC Fanatic!

    Mar 6, 2009
    5,448
    782
    One thing in your favor is that you only need a few watts .....
     
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