a new power supply for Z#9

[gionag]

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

[Nelson Pass]

By choke input do you mean an inductor in series with the AC
waveform, or CLC type filtering?

[gionag]

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

[jacco vermeulen]

Must be an Italian thing.

Keep-It-Simple-S.

[gionag]

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 !

[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.

[Magura]

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

Magura

[Magura]

Originally posted by gionag
i need an hand on calculating the right values for cap. and choke.

Thanks !

30.000uF>2mH>30.000uF


Magura

[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.

[Zen Mod]

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 ..........