Just a quick power supply capacitance question

[t.]

Originally posted by Ropie
Nuuk, my house is about to blow away and there's nothing on your website that tells me how to prevent this!!

Yes, you'd at least expect that as part of the service

[markiemrboo]

Originally posted by Nuuk
No, no, no!

Not two bipolar supplies! One split rail supply, ie positive volts, negative volts and zero volts! That's what we run the GCs on, a split rail supply.

Now look at what you've drawn in your diagram. It is showing what I have just drawn as a schematic. This is the error I am trying so hard to point out!!!



The first picture is a single bipolar regulated supply, off a single transformer, for both channels, yes?

The second picture, the one apparently in error, is two bipolar regulated supplies off a single transformer. One per channel! As my schematic is basically showing.

The third is two bipolar regulated supplies, one per channel, but each on their own separate transformer.


Seriously, can you not see it still? I must be misunderstanding something if you can't...

[Ropie]

Originally posted by t.

Yes, you'd at least expect that as part of the service

At the very least - I may have to go looking for that million VA traffo soon - it's blowing tubas out there!

Originally posted by markiemrboo

Now look at what you've drawn in your diagram. It is showing what I have just drawn as a schematic.

Am I alone in not being able to see this schematic anywhere?

[Nuuk]

The first picture is a single bipolar regulated supply

Wrong!

The second picture, the one apparently in error, is two bipolar regulated supplies off a single transformer.

Wrong!

The third is two bipolar regulated supplies,

Wrong again!

Please understand this is a split rail supply! If you spent less time and energy trying to convince me that I am wrong, or have made a mistake, and more time understanding the basics, you may get to realise where you are going wrong!

[markiemrboo]

Originally posted by Ropie


At the very least - I may have to go looking for that million VA traffo soon - it's blowing tubas out there!

I'm going to ignore all of this

Am I alone in not being able to see this schematic anywhere?

Not sure. Imageshack is being a tad slow for me...

[markiemrboo]

Originally posted by Nuuk


Wrong!



Wrong!



Wrong again!

Please understand this is a split rail supply! If you spent less time and energy trying to convince me that I am wrong, or have made a mistake, and more time understanding the basics, you may get to realise where you are going wrong!

If all of those are wrong, then what are you showing in that first diagram? You're trying to tell me that you're using only one half of the split rail (0v and +ve) to power the amp, and the second diagram is just showing each half of the split rail supply on a single separate board. I don't think so....

It's showing me a single split rail supply powering both channels in the first diagram, and two split rail supplies each powering a single channel in the second diagram.

Please, explain to me how this is wrong?

EDIT: Heck, is someone has got the time explain to me one by one exactly what each one of those diagrams is supposedly actually showing?

[Nuuk]

It's showing me a single split rail supply powering both channels in the first diagram, and two split rail supplies each powering a single channel in the second diagram.

Yes that's right. What's the problem?

[markiemrboo]

Originally posted by Nuuk


Yes that's right. What's the problem?

The problem is the second diagram. You've just said that you can't do this?

[Nuuk]

he problem is the second diagram. You've just said that you can't do this?

Sorry for asking but is your real name Jeremy Beadle?

I don't think that I did say that!

[t.]

I've built all three of these supplies myself , they do work and I don't understand the confusion.
The first one is one transformer dual secondarys, pair of rectifiers with a single dual reg circuit set to output +/- and gnd running two amps.
The second one is one transformer dual secondarys , pair of rectifiers with a PAIR of dual reg circuits set to output +/- and gnd so now each amp has its own dual reg run from the one transformer and dual rectifiers