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    230VAC to 12VDc converter circuit

    hi
    any one shall help me to come out the problem.
    i want to build 230VAC to 12VDC circuit without transformer.
    i need the circuit diagram and description.

    regards
    G R Patil

    •   Alt23rd April 2011, 10:10

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    Re: 230VAC to 12VDc converter circuit

    Hi,
    I think transformer is better one of this conversion..



    •   Alt23rd April 2011, 11:10

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    Re: 230VAC to 12VDc converter circuit




    •   Alt23rd April 2011, 12:12

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    Re: 230VAC to 12VDc converter circuit

    You need AC-DC flyback converter if high efficiency is required.



  5. #5
    Zez
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    Re: 230VAC to 12VDc converter circuit

    Perhaps an old AT/ATX PC powersupply could help?


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    Re: 230VAC to 12VDc converter circuit

    Quote Originally Posted by Zez View Post
    Perhaps an old AT/ATX PC powersupply could help?
    Nice suggestion indeed.
    You don't have to know everything, if you know where to find it.



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    Re: 230VAC to 12VDc converter circuit

    Transformer less power supply is risky one. So can you tell me your requirement (application of the power supply) and specification of the power supply. Then only we can able to suggest the type of power supply to be used. Because you can do it by,
    1. Capacitive
    2. Zener Diode
    3. SMPS

    SMPS provides higher output Efficiency and high current output. Others may not be suitable for high Power application. But you can improve the power rating by cost.

    Replay me with required specification and application, i will give you circuit. I had worked on it!


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