Power Supplys Attempt (2)

[Tom Cloud]

>Wow, that was a slam LOL.  I actually liked their book, and as you said, its
>for beginners.  I bought it because I wanted the theory about switching power
>supplies.  For my car project I need to build a +5 at 20A, +12 at 5A, -5 at 2A,
>-12V at 1A power supply, and was trying to find one in the book.  I built most
>of the examples in the book, and they work, though not very efficiently
>comparied to what I expected.

have you considered using a standard PC power supply.  They
cost about $30.  All you need to drive it is either 120VAC
or about 160VDC.  IOW, instead of trying to build everything,
you could build a 12 to 160 volt supply and it wouldn't
even have to be regulated.  Then just tie it into the
PC supply right after the input bridge rectifier.

Tom Cloud <cloud at peaches.ph.utexas.edu>