+/-35V and +/-12V power supply

mastercarbit · 12th March 2012, 07:08 PM

Hi I need a schematic for a +/-35V and +/-12V power supply, for my class D amp. (need 35V for MOSFETs and 12V for comparator and few other ICs). If you can include a component list that would be great. thank you!

reg66 · 10:11 PM

i have next to zero knowledge, so forgive me if i'm barking up the wrong tree, but this smps comes in a -/+36V (5-10% variable) version, don't know if there's enough info or even if it's clear enough...http://www.connexelectronic.com/documents/SMPS300R.pdf

(EDIT: page 3 of the pdf)

Minion · 12th March 2012, 10:25 PM

Quote:

Originally Posted by mastercarbit

Hi I need a schematic for a +/-35V and +/-12V power supply, for my class D amp. (need 35V for MOSFETs and 12V for comparator and few other ICs). If you can include a component list that would be great. thank you!

Linear or SMPS ??

reg66 · 12th March 2012, 10:48 PM

oh, and forgot to mention my previous post smps has around 12V @ 0.25A auxillary (needs regulating for sensitive applications, currently at around 10% value)

mastercarbit · 13th March 2012, 07:37 PM

dont really know what the difference is

and i need something simpler than what reg66 posted

mastercarbit · 13th March 2012, 08:18 PM

Quote:

Originally Posted by Minion

Linear or SMPS ??

dont really know what the difference is and i need something simpler than what reg66 posted

AudioSan · 14th March 2012, 02:18 PM

transformer sec. of 2x26V + 2x9V, 2-4 rectifiers and some caps.
that vil be +/-35V and +/-12V

DF96 · 14th March 2012, 02:34 PM

If you really don't know the difference between SMPS and linear supplies than I suggest you buy rather than make a supply. PSUs always raise two issues for newbies: safety and grounding. We don't want to lose forum members, and you don't want to listen to hum.

12th March 2012, 07:08 PM	#1
mastercarbit diyAudio Member Join Date: Jan 2012	+/-35V and +/-12V power supply Hi I need a schematic for a +/-35V and +/-12V power supply, for my class D amp. (need 35V for MOSFETs and 12V for comparator and few other ICs). If you can include a component list that would be great. thank you!

12th March 2012, 09:57 PM	#2
reg66 diyAudio Member Join Date: Feb 2012	i have next to zero knowledge, so forgive me if i'm barking up the wrong tree, but this smps comes in a -/+36V (5-10% variable) version, don't know if there's enough info or even if it's clear enough...http://www.connexelectronic.com/documents/SMPS300R.pdf (EDIT: page 3 of the pdf) Last edited by reg66; 12th March 2012 at 10:11 PM.

14th March 2012, 02:18 PM	#7
AudioSan diyAudio Member Join Date: Feb 2009 Location: Trondheim	transformer sec. of 2x26V + 2x9V, 2-4 rectifiers and some caps. that vil be +/-35V and +/-12V __________________ aleph P1.7 pre. F5 power amp. CDpro2(need DAC). Vivaldi8 speakers

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12th March 2012, 10:48 PM	#4
reg66 diyAudio Member Join Date: Feb 2012	oh, and forgot to mention my previous post smps has around 12V @ 0.25A auxillary (needs regulating for sensitive applications, currently at around 10% value)

13th March 2012, 07:37 PM	#5
mastercarbit diyAudio Member Join Date: Jan 2012	dont really know what the difference is and i need something simpler than what reg66 posted

14th March 2012, 02:34 PM	#8
DF96 diyAudio Member Join Date: May 2007	If you really don't know the difference between SMPS and linear supplies than I suggest you buy rather than make a supply. PSUs always raise two issues for newbies: safety and grounding. We don't want to lose forum members, and you don't want to listen to hum.

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