simple bipolar power supply

BodomChild · 10th July 2006, 07:19 PM

Hi

how can I use this eschematic (or a simple one like this) to work with a sec. 24-0-24V, 5A transformer and give 30v (bipolar)?

I can't find a schematic to give 30-0-30. I hope someone can help me.

thks all

richie00boy · 10th July 2006, 07:29 PM

The schematic is the same whatever you do. All that is different is that for 30-0-30 volt output you need a 22.5-0-22.5 volt transformer, which you will be unlikely to find.

I'm sure a common 25-0-25 volt transformer yielding 33.5-0-33.5 volts will be fine.

BodomChild · 11th July 2006, 01:09 AM

thaks thanks thanks.

what a stupid question....but now I'm happy.lol

thks again

DJ Exprice · 11th July 2006, 04:19 PM

Better schematic:

morpheus82 · 12th July 2006, 07:25 AM

well...you can also place 0.1uf in parallel with each diode of the bridge if you want...They reduce HF noise caused by the reverse recovery current being snapped off when the carriers in the diodes are depleted.

10th July 2006, 07:29 PM	#2
richie00boy Did it Himself diyAudio Member Join Date: Nov 2003 Location: Gloucestershire, England, UK	The schematic is the same whatever you do. All that is different is that for 30-0-30 volt output you need a 22.5-0-22.5 volt transformer, which you will be unlikely to find. I'm sure a common 25-0-25 volt transformer yielding 33.5-0-33.5 volts will be fine. __________________ www.readresearch.co.uk my website for UK diy audio people - designs, PCBs, kits and more

11th July 2006, 04:19 PM	#4
DJ Exprice diyAudio Member Join Date: Mar 2006 Location: San Francisco, California	Better schematic: All rights reserved Carlos Filipe of ChipAmp.com

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11th July 2006, 01:09 AM	#3
BodomChild diyAudio Member Join Date: Jul 2006	thaks thanks thanks. what a stupid question....but now I'm happy.lol thks again

12th July 2006, 07:25 AM	#5
morpheus82 diyAudio Member Join Date: Oct 2004	well...you can also place 0.1uf in parallel with each diode of the bridge if you want...They reduce HF noise caused by the reverse recovery current being snapped off when the carriers in the diodes are depleted.