Linear PS help

ashley_kitty · 14th May 2007, 11:54 AM

hi guys,

i need some help with making a power supply for my 5.1 speakers.

i have to convert 240VAC to 2 outputs : 14.4VDc (125Watts) and 13.5VDc (35Watts) for my amplifiers.

So i have decided to use the a Zener voltage regulator to obtain the output.

I've read the pdf for LM431. but don't quite know if it is possible to use it. Any suggestions.?

thanks.your help is appericated.

pjpoes · 16th May 2007, 12:45 AM

Not sure what you are looking for, but how much current do these amps need. Those voltages are pretty low so I don't imagine it puts out a lot of power. Can you give us more details about what it is you are powering and what the power supply is for?

paulb · 16th May 2007, 01:00 AM

"14.4VDc (125Watts) and 13.5VDc (35Watts)"
You need far more current than a zener or LM431 regulator can provide. Something like this would be appropriate:
http://sound.westhost.com/project77.htm

14th May 2007, 11:54 AM	#1
ashley_kitty diyAudio Member Join Date: May 2007	Linear PS help hi guys, i need some help with making a power supply for my 5.1 speakers. i have to convert 240VAC to 2 outputs : 14.4VDc (125Watts) and 13.5VDc (35Watts) for my amplifiers. So i have decided to use the a Zener voltage regulator to obtain the output. I've read the pdf for LM431. but don't quite know if it is possible to use it. Any suggestions.? thanks.your help is appericated.

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
807 E-Linear	Fuling	Tubes / Valves	51	5th April 2011 02:27 AM
linear pot	sakis	Solid State	4	9th August 2008 02:34 PM
Need help with linear PS	tonyptony	Power Supplies	33	14th April 2006 10:37 AM
Help with Linear PSU	meta	Parts	26	19th March 2003 04:56 PM

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

16th May 2007, 12:45 AM	#2
pjpoes diyAudio Member Join Date: Jan 2005 Location: New York	Not sure what you are looking for, but how much current do these amps need. Those voltages are pretty low so I don't imagine it puts out a lot of power. Can you give us more details about what it is you are powering and what the power supply is for?

16th May 2007, 01:00 AM	#3
paulb diyAudio Member Join Date: Jun 2001 Location: Calgary	"14.4VDc (125Watts) and 13.5VDc (35Watts)" You need far more current than a zener or LM431 regulator can provide. Something like this would be appropriate: http://sound.westhost.com/project77.htm

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