Working of this circuit

Discussion in 'General Electronics Chat' started by SVS, Jan 29, 2014.

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  1. SVS

    Thread Starter Member

    Aug 16, 2012
    Hi everyone,

    I just found this circuit in Texas Instruments web bench design module which steps down 230 V AC to 12 V DC using the IC LM5023.
    (See attachment)

    Could someone please explain me briefly how this circuit works as I am not completely clear according to my understanding.
    And moreover , the cost of the transformer(T1) is not given when i downloaded the bill of materials. Could someone just tell me the approximate cost of such a transformer ?

    Thank you !!
    Last edited: Jan 29, 2014
  2. MrChips


    Oct 2, 2009
    Please note that for safety reasons discussion of transformer-less power supplies is prohibited on All About Circuits.

    See the Terms of Service found at the bottom of the page.
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