Connect with us

Power Supply Design Question

Discussion in 'Power Electronics' started by rdoty, Sep 2, 2015.

Scroll to continue with content
  1. rdoty

    rdoty

    3
    0
    Mar 6, 2010
    I need to design a high power supply e.g. 30-50 VDC @ 25 - 40 A. The supply is not variable, that's just the range e.g. 875VA to 2000VA. There are two approaches, either using a toroidal transformer which is pretty straightforward or switch-mode. Most power supplies today seem to be switching but rarely are they high power. Would it be more practical (and economical) to go toroidal or are there suitable switch-mode designs? Weight or size are not a factor.
     
  2. davenn

    davenn Moderator

    13,947
    1,989
    Sep 5, 2009
    how about something like these .....

    http://www.alibaba.com/showroom/48v-30a-switching-power-supply.html

    at those prices you could never build one anywhere near that price

    for a linear supply, the transformer alone is likely to cost $400 give or take a bit
    then you have casing, rectifier, capacitors, filter inductors etc

    you probably wouldn't get much change out of $800 - 900


    Dave
     
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Similar Threads
There are no similar threads yet.
Loading...
Electronics Point Logo
Continue to site
Quote of the day

-