help please

[Crispy]

I'm trying to build a power supply 230v ac to 15v 0 15v to a 12vdc 5vdc. I need help. I have a CD of a PSU but as a newbie I'm struggling to make an addition.

 

[Papabravo]

What addition are you struggling to make. It's not evident from what you've posted so far.

 

[AnalogKid]

Without a more detailed review, the schematic looks fine at this point for +/-12 V outputs. The outputs can not be adjusted up to 15 V.

What is your question? What addition do you want to make? Do you want to add 15 V and 5 V outputs to this supply?

Also, what is the source of the schematic? Did you create it, of is it from an app note or website? If so, please post a link to the original.

ak

 

[Crispy]

What addition are you struggling to make. It's not evident from what you've posted so far.

i really need a circuit diagram that covers both

 

[AnalogKid]

Both what? You need to be much more specific about what you want, because we do not know your application / system / whatever.

Input voltages

Output voltages

Minimum and maximum output currents *per voltage*

Temperature range - max heatsink sizes - are fans allowed - enclosed or open-air - ???

etc.

ak

 

[Papabravo]

i really need a circuit diagram that covers both

I'm sorry I must have missed the part of your post where you described both of the things you want.

 

[Crispy]

Without a more detailed review, the schematic looks fine at this point for +/-12 V outputs. The outputs can not be adjusted up to 15 V.

What is your question? What addition do you want to make? Do you want to add 15 V and 5 V outputs to this supply?

Also, what is the source of the schematic? Did you create it, of is it from an app note or website? If so, please post a link to the original.

ak

I will start again. I have a Mini Moog Synth circuit diagram and saw that someone had built one.

. I was looking for a PSU for this. I tried Claude AI but after discussing this with other folk its not a road one should go down. I found this https://syntherjack.net/modular-synth-power-supply/ . one thing the AI suggested which I felt I could do was to put an additional 5v output for "future" proofing the synth for any digit additions.

 

[Nigel Goodwin]

Well the original idea for the Mini Moog (which Robert Moog himself was against), and the designer of it, was an engineer called Gene Zumchak - who I used to talk to online quite a lot. However, I've not heard from him for a good while now, and I'm concerned he might have died

 

[AnalogKid]

The video you linked has links to other construction pages. The first one has schematics for a power supply that makes +/-20 V unregulated, and +/-10 V regulated. If you are building the same project, why do you need +/-12 V and +/-15 V?

ak

 

[Crispy]

The video you linked has links to other construction pages. The first one has schematics for a power supply that makes +/-20 V unregulated, and +/-10 V regulated. If you are building the same project, why do you need +/-12 V and +/-15 V?

ak

Looks like i missed that page. As I said earlier I put the CD in to Claude AI which gave me a PSU schematic which suggested a 12v +/- with a 230v 15v-0-15v 80va which I now have. Again I'm very new to this. Have had success with a few small kits and a breadboard. Still a long way to go.

 

[AnalogKid]

What do you mean by "CD"?

 

[Crispy]

What do you mean by "CD"?

Circuit Diagram

 

[Nigel Goodwin]

Circuit Diagram

Don't make up abbreviations, CD stands for 'Compact Disc'.

 

[AnalogKid]

So, back to the original question - what are the power supply output voltages and currents you want?

ak

 

[ZipZapOuch]

Don't make up abbreviations, CD stands for 'Compact Disc'.

It used to stand for compact disc. Since that's no longer a thing, recent EE textbooks have been using it for Circuit Diagram.

Seems like, as Pete Townshend wrote, you look pretty young but (you're) just back dated.

 

[Nigel Goodwin]

It used to stand for compact disc. Since that's no longer a thing, recent EE textbooks have been using it for Circuit Diagram.

The shops are still full of Compact Discs, only stupid books would reuse a famous and common abbreviation.