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Old 7th February 2010, 11:30 AM   #1
jarthel is offline jarthel  Australia
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Default help identify the purpose of this circuit

I have done this years ago but due to other priorities I have to put the project on hold. and since I lost my files more than a year ago, I cannot search there. I did a net search but quite frankly, I'm not sure what to ask.

anyway, here's what I have:
2 capacitors + 4 diodes

here's a very rough sketch (using MS paint):
http://img24.imageshack.us/img24/5012/31126513.png

thank you very much

Last edited by jarthel; 7th February 2010 at 11:49 AM.
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Old 7th February 2010, 11:46 AM   #2
Mooly is online now Mooly  United Kingdom
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With 4 diodes and 2 caps you can make a dual (split) supply with a suitable centre tapped transformer.

You don't draw diodes like that
Taking the nearest to what you have drawn, and they actually "short" the supplies.
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Old 7th February 2010, 11:51 AM   #3
jarthel is offline jarthel  Australia
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Quote:
Originally Posted by Mooly View Post

With 4 diodes and 2 caps you can make a dual (split) supply with a suitable centre tapped transformer.

You don't draw diodes like that
Taking the nearest to what you have drawn, and they actually "short" the supplies.
I do not think this is connected to a transformer though. Somehow I recall that is somewhat related to a "slow turn-on" circuit. But I could be wrong hence the reason for this thread.
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Old 7th February 2010, 12:02 PM   #4
Mooly is online now Mooly  United Kingdom
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You can only do so much with those components. What value were the caps ?
There must be more to the circuit.
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Old 7th February 2010, 12:05 PM   #5
Mooly is online now Mooly  United Kingdom
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Was it in the AC primary circuit of a transformer to cut DC from the windings and make it run quieter ?

Like this,
Mains DC and Transformers

Look at figure three.
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Old 7th February 2010, 12:19 PM   #6
jarthel is offline jarthel  Australia
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Quote:
Originally Posted by Mooly View Post
Was it in the AC primary circuit of a transformer to cut DC from the windings and make it run quieter ?

Like this,
Mains DC and Transformers

Look at figure three.
I think this is it. thank you
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