Dx Supply, output adjustable, stabilized power supply

[vargasmongo3435]

How simple do you want the unregulated power supply mister sanbadgujar ?

Regards
Juan

 

[meanman1964]

Sorry I don't try Vargasmongo

I mean, you can try Vargasmongo

 

[vargasmongo3435]

I do have a simple one if you like it let me know also I can add more caps too if you want

Juan

 

[destroyer X]

Maybe this way.... 20K plus 20K microfarads

the one belong to the Dx amplifier, the standard one....you can see in Greg Erskine pages:

Greg's Web Site

regards,

Carlos

 

[sanbadgujar]

I do have a simple one if you like it let me know also I can add more caps too if you want

Juan

Hello Vargasmongo3435


I want simple power supply to one channel of Dx standard or Dx Blame ST. I search Dx blame site and found following layout.Is it OK to use for one channel
for 30-0-30AC 250VA Transformer any changes in this layou. And Their is no space for diode in layout
please help Thanks all

 

[sanbadgujar]

Help on PSU For one Channel

Hello Carlos sir


I want simple power supply to one channel of Dx standard or Dx Blame ST. I searchd Dx blame site and found following layout it is same as Post #204.Is it OK to use for one channel Can it work with Only Two Filter capacitor. Any component need to change
for 30-0-30AC 250VA Transformer any changes in this layout.

please help.

Thanks

 

[vargasmongo3435]

Hello mister sandbagujar

Carlos does not like to design layouts jejejejeje I be happy to help you out but I need to know how many caps you want it to use and also what type of diodes you want to use on your design, single diodes or full wave bridge rectifier type, let me know when you get a chance

Juan

 

[sanbadgujar]

Hello mister sandbagujar

Carlos does not like to design layouts jejejejeje I be happy to help you out but I need to know how many caps you want it to use and also what type of diodes you want to use on your design, single diodes or full wave bridge rectifier type, let me know when you get a chance

Juan

Hello vargasmongo3435 Thanks for replay. I am going to used 30-0-30AC 200VA Transformer that means 15000-18000uF of total capacitor is required if my calculation is right need power to one channel of dx or dx Blame ST. I want Full wave bridge rectifier(Package / Case: GSIB-5S) on PCB.

Thanks

 

[AndrewT]

Hello vargasmongo3435 Thanks for replay. I am going to used 30-0-30AC 200VA Transformer that means 15000-18000uF of total capacitor is required if my calculation is right need power to one channel of dx or dx Blame ST. I want Full wave bridge rectifier(Package / Case: GSIB-5S) on PCB.

Thanks

for 8ohms speaker go straight to +-20mF of PSU capacitance for correctly proportioned and wideband bass.
For two channels or for 4ohms speaker double it to +-40mF.

 

[sanbadgujar]

for 8ohms speaker go straight to +-20mF of PSU capacitance for correctly proportioned and wideband bass.
For two channels or for 4ohms speaker double it to +-40mF.[/QUOTE


Hello AndrewT

Can you have PCB layout of PSU for One channel to DX or DX Blame ST.It means I have to Used 2/10000uf filter capacitor in supply.

 

[AndrewT]

I do have some DX PSU PCBs. They all have 4 locations for smoothing capacitors.

I generally hardwire my PSUs, gives lower loop area, for improved performance.

 

[sanbadgujar]

I do have some DX PSU PCBs. They all have 4 locations for smoothing capacitors.

I generally hardwire my PSUs, gives lower loop area, for improved performance.

Hello AndrewT

Can you give their Layout to me

 

[AndrewT]

..............Can you give their Layout to me

.................I generally hardwire my PSUs, ............. for improved performance.

They were DX PSU PCBs, I don't have designs for PSU Layout.
Most that I have seen on the Forum, I have criticised for basic layout errors, that compromise performance.

 

[vargasmongo3435]

Hello mister sanbadgujar

Will this work for you ? I mean I'm not an expert but this might work

Juan

 

[still4given]

How about one of these?

1pc 6 10000uF 63V Amplifier Power Supply DIY Kit PCB | eBay

They also have one that uses two bridges if you prefer. There are similar types with less caps though you can install fewer on these also.

Blessings, Terry

 

[vargasmongo3435]

It basically will look like this after assembled with the two options as mister still4given mention

 

[still4given]

Here is another one complete with all the parts

4 10000uF 100V High Quality Power Supply Board for Power Amp DIY | eBay

 

[destroyer X]

Nice this one...impressive they can make so low price

Almost unbelievable they can do this...very cheap..and good capacitors.... high cost these 100V units...high capacitance.

Impressive..no one can compete with these guys...impressive!

regards,

Carlos

 

[vargasmongo3435]

oh well ... jejejejeje for 30 some bucks is not bad at all

Juan

 

[still4given]

Sorry, I posted those from my tablet. I didn't realize what thread we were in. I think it should be noted that these recent offerings will not do the same thing the DX adjustable supply does. They are just straight forward bridge/filter supplies.