Convert AC to DC

Discussion in 'Electronics Resources' started by tdoan, Jul 2, 2014.

  1. tdoan

    Thread Starter New Member

    Jul 2, 2014
    Hey gents,

    I have this problem of converting 240V AC to 28V DC. I know the traditional way of using step down transformer then rectifier bridge then voltage regulator and what not.

    However the transformer is required to be mounted on the PCB (rating at 100VA, 3A --> too big) so this traditional method obviously doesn't work.

    Other alternative I could think of is a flyback converter. What are your thought on this? Any other topology that could reduce the size of the transformer?

    Thanks heaps!
  2. THE_RB

    AAC Fanatic!

    Feb 11, 2008
    Google for "240v to 28v DC SMPS".

    You will find lots of off the shelf solutions, which are much smaller and lighter than a 100VA transformer. :)
  3. shteii01

    AAC Fanatic!

    Feb 19, 2010