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Class D Switching Power Amplifiers and Power D/A conversion

is this realy stupid?
is this realy stupid?
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Old 21st December 2005, 01:42 PM   #11
Tekko is offline Tekko
Join Date: Jan 2005
Do NOT use mains directly without a safety transformer!!! I would reccommend a few UcD700 modules in paralelled pairs that you bridge, way safer than trying to build a suicide machine with direct mains feed.

My five cents.
Old 21st December 2005, 11:43 PM   #12
kartino is offline kartino  Indonesia
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You are right Tekko,

That's why I give suggestion that costly, more expensive than buy isolated PS.

I know also that this forum reject the discussion for direct connection to mains. My suggestion is for people who ready to take serious risks to connect their amp directly to mains at their home.
Old 22nd December 2005, 12:58 PM   #13
nitrate is offline nitrate  United Kingdom
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Even i'm not this crazy

You will fry!!!

Especially not at Christmas

Hope to talk to you laterZ

P.S Merry Xmas all
The perfect amplifier is a piece of wire with gain....
Old 22nd December 2005, 01:05 PM   #14
Stocker is offline Stocker  United States
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I am a little astonished that this has not had some big-time moderator warning attached yet, nevermind being deleted/moved to Texas/locked.
Jesus loves you.
Old 22nd December 2005, 02:41 PM   #15
lne937s is offline lne937s  United States
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I was reading this and, although going directly to mains is not a great idea, could you run a Balanced AC circuit through the walls(balanced AC is 60v+/- for US vs single ended 110/120v) and plug the powersupply for a UCD 700 directly into the wall taps, along with the rest your equiptment. I know that they sell balanced AC rack units (which contain a very large transformer) and believe that they are available for an in wall installation that are up to code...
Old 22nd December 2005, 02:54 PM   #16
bob123 is offline bob123  United Kingdom
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i am now certain that this is realy stupid! I never though it would be possible (safely) but i just wanted to see what the opinion was from the forum.

thanks guys
Old 26th December 2005, 07:58 PM   #17
kubeek is offline kubeek  Czech Republic
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I thought about something similar, but with two transistors in push-pull into a transformer, like in old tube-amps.
What do you think?
Old 26th December 2005, 08:31 PM   #18
Netlist is offline Netlist  Belgium
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I hope your other thread gets attention as long as your intention is to not power it directly from mains.
Every now and then we have to warn members and close threads like this. It's hard for us mods to determine if members have enough experience with this kind of applications. I believe few of us have.
Besides that, we don't want to waste our life for that one big-power project do we?


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