200W MOSFET CFA amp

[dadod]

Quote:
Originally Posted by tjencks  
I'm good with the price.

What is cost for the PS regulator ?
So I can confirm you for 6 pcs of 200W pcbs?

The PS regulator PCS should be about 20 EUR plus shipping. I need few days to recheck the PS regulator layout.

Dear Dadod,

I'm confused. Did not you point it to tjencks?
I'm interested in 2 pieces of 200W pcbs (4 pieces if we are not enough for the order (you said 10 boards at least)).

I'm interested in 2 pieces of PS regulator board too.
thank you

Oh sorry my mistake, of course it goes to tjencks.

Here you have zip file with .asc and transistor models.

 

[zsaudio]

Thank you very much Sir.

 

[tjencks]

Yes I'm good with 6 boards...confirmed.

 

[dadod]

Today I will order the boards.


………………………………………………………………..confirmed
tjencks 6 pcs 200W amp boards...………..OK
vitalica 2 pcs 200W amp boards …………..OK
malibutwins 2 pcs 200W amp boards.....OK
arthur 2pcs 200W amp boards...…………….OK
zsaudio 2pcs 200W amp boards...………...OK

 

[arthur]

please update me to have 4 boards
if possible 4 power supply boards

 

[dadod]

please update me to have 4 boards
if possible 4 power supply boards

Order can be placed in steps of five, I ordered 15 boards but I will try to get 16 if possible, I let you know if they will do like that.

The PS regulator I will order separately, need to finish some checks.

 

[dadod]

I just received the answer, they are closed from Jan 31 to Feb 11 during Chinese New Year holidays.

 

[dadod]

Order can be placed in steps of five, I ordered 15 boards but I will try to get 16 if possible, I let you know if they will do like that.

The PS regulator I will order separately, need to finish some checks.

I received answer about 15 or 16 pcs. I can order 15 or 20 pcs, not possible 16.

Any more interested that I can order 20 boards?

 

[zsaudio]

Does it mean that we can organize the ps regulator boards too? 😎

 

[dadod]

Does it mean that we can organize the ps regulator boards too? 😎

Actually, yes.

 

[zsaudio]

I’m in. I subscribe to 2 pices of Ps regulator boards.

 

[dadod]

Now I have question. Attached photo view of the PS regulator board. Different between this boards and amp board is that PS board silk screen shows element name and numbers not the values. Is this OK with you or I need to put the values? It will take a time and cost a bit more.
Damir

 

[arthur]

component numbering only is ok

 

[Ampi]

Hi Dadod,
I read that the PS regulator board includes a short cut/ overcurrent protection. If I'am right, this board does not open the connection to the speaker. It switches only of the power supply. Is this fast enough in case of a short cut?

 

[zsaudio]

Dear Dadod,

I’m ok with the original one. No need to modify it. 2 pieces subscribed

 

[dadod]

Hi Dadod,
I read that the PS regulator board includes a short cut/ overcurrent protection. If I'am right, this board does not open the connection to the speaker. It switches only of the power supply. Is this fast enough in case of a short cut?

It monitors the DC voltage on the output( you have to connect LR, LL or only one of it to the power amp output). In case there is DC voltage higher then 10 V it will switch the PS regulator off.
I had ones bad solder in my power amp and full DC voltage on the output, PS switched off and nothing happened to the loudspeaker. It is important not to have to big caps in thousands uF after PS regulator

 

[dadod]

PS regulator board (price per pcs 15 EUR plus shipping) order list:

Arthur PS regulator board 4pcs...….
zsaudio PS regulator board 2pcs.....

 

[zsaudio]

Confirmed

 

[mlloyd1]

Damir:

I'd like 2 pcs of PS regulator board.
Please add me to the list.

Thanks,
mlloyd1

 

[dadod]

PS regulator board order list:

Arthur PS regulator board 4pcs...….OK
zsaudio PS regulator board 2pcs.....OK
mlloyd1 PS regulator board 2pcs.....OK