| Albertone |
| What is the best way to feed the Zen ZV9?? Has anyone a schematic or a PCB to suggest?? Please help me!! |
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| Alain Dupont |
Albertone,
look at the manual of similar Class A amplifiers, example Zen Amp
http://www.passdiy.com/pdf/zenamp.pdf
1 AC connector, a fuse, a transfo {3* times power used!}
choice of 1 or 2 secondaries {1 for each channel is better...}
100 watts for each channel, so: 250 to 300VA for each channel
that's a 300VA, for a monobloc or only 1 * 625VA for a stereo 2 channel
To get 50 volts DC : secondary(s) must provide: 36 volts AC on load to the bridge
And for each channel:
a bridge rectifier 25A/100volts
several capacitors, example 2*10 000microF
Perhaps a fuse for each channel DC, would be safe to protect the bridge(s) and transfo...
Alain. |
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| sts9fan |
Can someone tell me if this transformer will work for this project?
http://www.partsexpress.com/pe/show...tnumber=122-650
Also I am new at this and a bit confused on how to pick a transformer based on a schematic, If someone could lead me to some guidelines that would be sweet.
Kris |
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| GeWa |
sts9fan
Alain summed it up quite nicely.
Yes that transformer will work with the secondaries wired in parallel. You will end up with a rail voltage somewhere between 46 and 49VDC. One of those per channel is also my advice.
Regards |
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| Alain Dupont |
Kris,
Good choice, this will give you about 49 to 50 volts DC at 2 Amps for each secondary.
You will need 1 for each channel monobloc,
and you put the secondaries in // {parallel}.
regards.
Alain. |
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| GeWa |
| quote: | | I would assume that the AN 3236 would work also |
Yes. You could also use the AN 3218 with the secondaries wired in series.
Regards |
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| sts9fan |
| Is there somewhere I can read about the secondaries of these transformers? I am confused about the differnet configurations and why some would be wires in series and the other in parallel |
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| steenoe |
| quote: | | You could also use the AN 3218 with the secondaries wired in series. |
I will second that, as an even better choice. It will give you more possibillity's later on. Most of the Passdiy amps can be made with 2x18V secondaries.
Steen:) |
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| steenoe |
Here is a nice place to start. Just go down the page untill you see the Transformer articles. All the other stuff is also worth reading.
http://sound.westhost.com/articles.htm
Steen:) |
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| sts9fan |
THANKS!
that website is what I have needed for a long time now! |
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