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Inverter filter help

Discussion in 'General Electronics Discussion' started by Christina, Jul 26, 2013.

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  1. Christina

    Christina

    1
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    Jul 26, 2013
    Sir,
    I am doing a project on single phase grid tied inverter(H bridge).
    circuit and waveform are attached.
    I am using a 24V, (0-3A) DC supply source. It is inverted to 22V ac and is stepped up to 230V ac using a transformer. PWM technique is used for inverting, with the help of microcontroller AT89c51. I obtained the voltage waveform, which needs to be filtered to get sinusoidal wave. I tried designing LC filter, but as I inserted the filter, input dc current increased to high value. so I turned off dc supply. Please help me in designing filter. And how can I connect my inverter to 230V

    Christina
     

    Attached Files:

    Last edited: Jul 27, 2013
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