🚀 go-pugleaf

In article <thomasd.33.727991442@tps.COM> thomasd@tps.COM (Thomas W. Day) writes:
>Can anyone give me some advise on power amplifier design for 12VDC power 
>supplies (automotive applications)?  Specifically, what kinds of power 
>supplies are typically used in high power (50W+) designs?  I am hoping to 
>find a practical way to get a high voltage (>+/-25VDC) supply for a bipolar 
>amp.
>

The powersupply is the most complicated, and most expensive
part of the amplifier..  It is no trivial task to design and
build.  I would reccomend you find a DC to DC converter in a
catalog for your applications, and current requirements..
Theese items get verry expencive in higher current models.
For a 100 watt mono amplifier, your would probably need like a
split 24 supply, at 4 amps..  That could run you over $100.

If you are still interested, there was a article in a back
issue of Radio Electronics, on "How to build your own car
stereo amplifier", but if I remember correctly, the
transformer in the powersupply was over $30 (Just for the 1
component), and the total cost of the amp was not much less
that going to the store and buying a similar one.  After you
buy all the parts, and the HUGE chunk of heatsink you will
need for a large power amplifier, it will not be worth it.

Marc.