How do I design a power supply unit with:

Input: 230 Vac
Output: 5 Vdc, 500 mA 

Use Switching Regulator for my design.


closed as not a real question by Adam Lawrence, Dave Tweed, Olin Lathrop, Leon Heller, markrages Nov 1 '12 at 15:25

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. If this question can be reworded to fit the rules in the help center, please edit the question.

  • 1
    \$\begingroup\$ This is far too vague. You make no mention of isolation, topology, cooling, open vs. closed frame, input tolerance, output tolerance, ripple current, EMI requirements, safety requirements, reliablity requirements (MTBF), PFC ... without specific details this question should be closed, since there can be no specific answers to a non-specific question. \$\endgroup\$ – Adam Lawrence Nov 1 '12 at 12:46
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    \$\begingroup\$ This is an odd question. If you haven't a clue how to design a switching regulator unit, how on earth could the result ever be your design? \$\endgroup\$ – Alfred Centauri Nov 1 '12 at 12:47

Perhaps you could make the question a little more specific.

If you are looking for a general tool or guide to switch mode power supply design, there are several on the net, as well as free online design tools on the web sites of manufacturers such as:

Many of these tools go as far as providing a schematic, a bill of materials, performance parametrics and even design simulation, all for free.

If on the other hand, you would like someone to design one for you, this might not be the best place for that.

  • \$\begingroup\$ if i am using tinyCAD software for the design, how do i design the power supply unit? Any guides? \$\endgroup\$ – citron Nov 1 '12 at 13:20
  • \$\begingroup\$ Have you tried using one of the web-based tools from the links in the answer above? That will give you a good start, then you can bring the design over to your software. \$\endgroup\$ – Anindo Ghosh Nov 1 '12 at 14:08

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