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In Reply to: RE: Switch-mode power supplies - how many have 'em ? posted by Disbeliever on December 14, 2014 at 03:24:04:
The earliest use of switch mode power supplies I know of was in 1979 in the 1st Berning preamp(which had other unique features) put out by Precedent Audio.
You do have to make sure the high frequencies the supplies work at don't work their way into the audio circuits. But the supply can be orders of magnitude smaller and yet still be electrically large. Filling up power supply caps at 70 KHz like Soulution does means you're refilling tons faster than at 60 Hz out of the wall, over a thousand time faster. And the power supply is the amp. What we think of as the amp is a variable valve. If the supply is not dead nuts stable and sags(and they do) the valve can be accurate and still not pass enough current.
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- RE: Switch-mode power supplies - how many have 'em ? - hahax@verizon.net 20:57:29 12/14/14 (0)
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