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Old 31st March 2008, 05:45 PM   #1
gionag is offline gionag  Italy
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Default a new power supply for Z#9

Hi guys,
do you know a good way to give a Zen#9 a choke input supply ?

i used PSUD2 for trying good values but i had a lot of error during tests.

How i have to calculate exact value for giving a 50V rail ?

thanks
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Old 31st March 2008, 09:27 PM   #2
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By choke input do you mean an inductor in series with the AC
waveform, or CLC type filtering?
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Old 1st April 2008, 08:07 AM   #3
gionag is offline gionag  Italy
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Wow, my first Nelson Pass' s reply !

i think the CLC type is better.

but i'm thinking about a mix of a choke in series with AC and a CLC filtering.

What do you think ?
How you suggest to proceed ?

Thanks a lot
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Old 1st April 2008, 08:59 AM   #4
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Must be an Italian thing.

Keep-It-Simple-S.
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Old 1st April 2008, 09:03 AM   #5
gionag is offline gionag  Italy
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what do you mean ?

you think that Input ckoke + CLC filtering is too much ?

at least, i use only a CLC filtering but i need an hand on calculating the right values for cap. and choke.

Thanks !
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Old 1st April 2008, 09:23 AM   #6
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I mean that good is good enough.

You haven't succeeded in calculating a choke supply with Duncan's punch and go toy, your second move is to make it more difficult.
Build something the normal way and learn as you go along, save a bit more complicated for the second project.
Do not take 10 steps at a time as members like Stefanoo do, it will lead nowhere but dissapointment.

I reckon most overhere regard CLC as sufficient.
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Old 1st April 2008, 12:12 PM   #7
Magura is offline Magura  Denmark
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Quote:
Originally posted by jacco vermeulen
I mean that good is good enough.

You haven't succeeded in calculating a choke supply with Duncan's punch and go toy, your second move is to make it more difficult.
Build something the normal way and learn as you go along, save a bit more complicated for the second project.
Do not take 10 steps at a time as members like Stefanoo do, it will lead nowhere but dissapointment.

I reckon most overhere regard CLC as sufficient.

with 96dB speakers, CLC is adequate, if you go past 100dB speakers, AFAIK the only ticket for a ZV9 to remain silent is regulated supply.....

But as Jacco just said, keep it simple.....build yourself a ZV1 as a first project, PCB's can be had from audio express, it's simple and well documented. Once you got that up and running, and understand what it's doing, to convert it to a ZV9 is a walk in the park

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Old 1st April 2008, 12:14 PM   #8
Magura is offline Magura  Denmark
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Quote:
Originally posted by gionag
i need an hand on calculating the right values for cap. and choke.

Thanks !

30.000uF>2mH>30.000uF


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Old 1st April 2008, 12:19 PM   #9
steenoe is offline steenoe  Denmark
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To keep it simple, this is the easy and cheap solution for the inductor:

http://uk.farnell.com/1191495/passiv...ER-RN152-10-02



BTW the original Zen9 circuit is sporting a "sort of" capacitance multiplier that cleans the supply rails. A CLC supply is not really necessary.
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Old 1st April 2008, 03:08 PM   #10
Zen Mod is offline Zen Mod  Serbia
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Quote:
Originally posted by steenoe
To keep it simple, this is the easy and cheap solution for the inductor:

http://uk.farnell.com/1191495/passiv...ER-RN152-10-02



BTW the original Zen9 circuit is sporting a "sort of" capacitance multiplier that cleans the supply rails. A CLC supply is not really necessary.

rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrriiiiiiiiii iiiiiiiiiiiiiiinggggggggggggggg........

that's AC choke .



btw - Jaccovitty is grumpy today ..........
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