Suggestion for 220VAC - 9V, 1.5A PSU

Discussion in 'The Projects Forum' started by saikat36, Dec 12, 2011.

  1. saikat36

    Thread Starter Member

    Jan 28, 2009
    16
    0
    Here I need suggestion/guidance/advice to design a PSU 220VAC~9V,1.5A DC without using most common type step-down Transformers which are heavy & bulky. Actually I don't have a space to deal with.
    Mobile charger, Digicam batt. charger, now-days many power adapters they don't have conventional step-down Transformer but have a driver circuit. Can anyone suggest me such type of circuit for my PSU.


    Thanks
     
  2. K7GUH

    Member

    Jan 28, 2011
    191
    23
    It is my understanding that AAC does not encourage projects of this type. If you are planning to build a low voltage power supply, the only safe way to do so is with a step-down transformer.
     
  3. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
    There are wall warts that can do this. I would suggest it is not practical to DIY without a transformer, but if it is available off the shelf that is the way to go.
     
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