Multiple low voltages required

[JRKO]

Noob questions I'm afraid.

I have a minidsp (4.5-24v), B1 pre (18-24v) and a boozehound labs phono stage (12-24v) requiring power. I need some help on the setup. Can/should I use

A) 1 transformer & 1 regulator at a voltage they are all happy with ie 18-24v
B) 1 transformer with 3 regulators on one secondary
C) 1 transformer with 3 secondaries and 3 regulators
D) 3 transformers with 3 regulators

I'm looking at something like this H-PS-1 low-voltage regulator for regulation duties

Thanks in advance

 

[AndrewT]

B) is OK and will be the cheapest way to arrive at three different voltages from the one transformer secondary.

 

[Pafi]

I would choose C, because this way you can avoid internal ground loop problems easily.

 

[fabrice63]

digital ( dsp ) and analog should have they'r own supply so C is fine , and D is best

and regulator's should have the lowest noise as possible , for the same money you'll find betters regs ;-)

.

 

[JRKO]

Thanks all for the replies!

If something like this 186B24 Hammond Manufacturing | Mouser is suitable then 3 transformers isn't a cost issue. 6VA should be plenty for these applications right?

for the same money you'll find betters regs ;-)

.

Can you pointer towards some other reg kits?

 

[JRKO]

How about this version? LV-Regulator

Am really looking for complete kits for now

 

[fabrice63]

diyinhk have plenty off good kit regs , searching here , on the site , you'll find many others options ;-)

in audio i personnaly use only R tore Transformers .

.

 

[JRKO]

Many thanks fabrice

The power supplies for the preamp will be in a seperate chassis so the basic transformers should be okay. Any thoughts?


I've been Reading up on r-core transformers. Where do you get them?

 

[fabrice63]

They have good products at fair prices

R-CORE pour châssis - Transformateurs - Composants électriques - Sommaire