Parallel a dual power supply or two power supplies? - Page 2

diarav · 5th October 2006, 11:33 AM

Hi Jan,

Thank you for your response.

The rectifier at each transformer and into the reservoir cap looks suitable. Any idea what value of caps would be suitable for such a purpose. Currently I am having 4700 uF at each output. Perhaps add another 4700 uF or more or do I leave it as it is?

Also, I have a 5A fuse at the mains. I should increase this too perhaps. Would this be 10A now?

Thanks again.

Din

AndrewT · 5th October 2006, 05:01 PM

Hi,
I recommend a low value power resistor in the feed line from each transformer. 0r1 to 0r22 should be large enough.
This will help to balance currents from each winding. The resistors also reduce the peak currents which is a slight advantage.

Fin · 16th February 2007, 04:21 AM

We are having a discussion in the Class D section about connecting multiple SMPS in parallel and could probably do with some help.

Discussion in Class D......

We are trying to work out if it is possible to combine a few of these to deliver more current.

Any comments would be appreciated.

5th October 2006, 05:01 PM	#12
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Hi, I recommend a low value power resistor in the feed line from each transformer. 0r1 to 0r22 should be large enough. This will help to balance currents from each winding. The resistors also reduce the peak currents which is a slight advantage. __________________ regards Andrew T.

16th February 2007, 04:21 AM	#13
Fin diyAudio Member Join Date: Dec 2003 Location: -	We are having a discussion in the Class D section about connecting multiple SMPS in parallel and could probably do with some help. Discussion in Class D...... We are trying to work out if it is possible to combine a few of these to deliver more current. Any comments would be appreciated. __________________ Regards Fin

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Dual Power Supply.l	egelundvej25	Power Supplies	1	11th June 2009 09:13 PM
FS dual 0-20vdc reg power supply $29	homemade	Swap Meet	0	9th July 2008 02:29 AM
Dual 0-30V, 0-2A DC Power Supply - UK	Zodiac	Swap Meet	0	20th April 2008 04:43 PM
Parallel-ing Switching Power Supplies	JohnT_diy	Power Supplies	11	7th July 2007 04:00 PM
diy dual lab power supply	morpheus82	Power Supplies	25	10th July 2006 12:41 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

5th October 2006, 11:33 AM	#11
diarav diyAudio Member Join Date: Dec 2004 Location: Bangalore India	Hi Jan, Thank you for your response. The rectifier at each transformer and into the reservoir cap looks suitable. Any idea what value of caps would be suitable for such a purpose. Currently I am having 4700 uF at each output. Perhaps add another 4700 uF or more or do I leave it as it is? Also, I have a 5A fuse at the mains. I should increase this too perhaps. Would this be 10A now? Thanks again. Din

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)