Step Down DC-to-DC Converter

Discussion in 'The Projects Forum' started by MuhammadHaris, Jun 9, 2012.

  1. MuhammadHaris

    Thread Starter New Member

    Mar 10, 2012
    1
    0
    Hello guys!

    I'm Haris. And I'm having some problems with my project.

    I have purchased a 220VAC-to-30VAC Transformer (10 AMPERES). And this transformer happened to give an output of 34.5 VAC. When I converted this VAC to VDC through rectifier diodes, I was getting 46.5 VDC at the output.

    Now my question is I want to step down this 46.5 VDC to 30 VDC (or at least 35 VDC). Please remember that I want stepper motors to be driven through this transformer (2.2A rated each i.e. at least 6.6A of load on transformer).

    Is there any way I could step down this 46 VDC to 30 VDC at 10 Ampere rating?

    Regards
    Muhammad Haris!
     
  2. RRITESH KAKKAR

    Senior Member

    Jun 29, 2010
    2,831
    89
    This is no-load voltages to maintain voltage regulation...!!
    and
    before DC i.e. AC was RMS value after converting it to DC you get Peak vale which is of root(2) times the the voltage.

    for 30V you can't use linear regulator, so switching requlator have to take place of it..!
     
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