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Old 21st October 2004, 03:30 PM   #1
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Default Switch Mode Power Supply

Hi all,

especially for those high power AX-topology amplifier a SMPS might be a cheap solution.. After some searching I found this:

http://www.fairchildsemi.com/whats_n...yback-pfc.html

and especially this one:

http://www.fairchildsemi.com/pf/FS/FSCQ1265RT.html


Do you think it is diy-able.....
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Old 21st October 2004, 07:14 PM   #2
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Yeah... of course... the real question is, do you understand it well enough to take it on, troubleshoot it and make it reliable?

Tim
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Old 21st October 2004, 07:34 PM   #3
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LOL offcourse not... but I'm sure I will after some significant time reading all I can find on SMPS.... So far this seems this most simple SMPS suiteble for an audio amplifier ..but I if any of you have suggestion, I would be very interested..

I cann't seem to find any web pages with audio SMPS projects.. anybody got some links?
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Old 21st October 2004, 08:00 PM   #4
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Thijs,

No links, but I have been using these for some time now:

http://www.vicorpower.com/products/d...dules/2nd_gen/

Just add a bridge and capacitor up front, and you have highly regulated, fully protected, 2 x 150W supply.
Maybe not what you want, but a nice example of contemporary technology.

Jan Didden
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Old 21st October 2004, 10:12 PM   #5
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Nice, thanks for the link! I have looked up the prices:254$ for a dual 48Volt/150Watt modules ... although the look great, state-of-the-art, it isn't price competetive compared to a conventional DC supply and not very DIY...... but it is tempting!
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Old 22nd October 2004, 02:39 AM   #6
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Quote:
Originally posted by tschrama
Nice, thanks for the link! I have looked up the prices:254$ for a dual 48Volt/150Watt modules ... although the look great, state-of-the-art, it isn't price competetive compared to a conventional DC supply and not very DIY...... but it is tempting!
If you need 48V switching supplies -- I have a bunch from Sorensen -- very, very low noise -- they aren't particularly low-weight like current production switchers,

48V will be very exciting in the next couple of years. Stay tuned.
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