rascalseven

Need help with bipolar 48v supply....?
« on: January 20, 2010, 06:37:09 PM »
I've been asked to rack up a bunch of ATI Paragon channelstrips, and the mic amp in these takes +/-48v.  LM337 tops out at -37v, and I've never needed this high a negative voltage before, so I'm not familiar with such designs.

Any ideas or direction?  ???

Thanks for any help you guys can send.

Peace,

JC
« Last Edit: January 20, 2010, 06:56:56 PM by rascalseven »
"If you dig the gig, do it. -But listen to the signal, not the person talking."  -Keef


volker

Re: Anyone got a good bipolar 48-volt supply design?
« Reply #1 on: January 20, 2010, 07:03:28 PM »
No, read the datasheet again. LM337, as well as LM317, can stand up to 40V (says NatSemi) DIFFERENCE between input and output, that is not the maximum output voltage. They would also happily regulate to 200V or whatever, as long as you don't go in too high.


Of course, if you want to go the discrete route: look for series/shunt voltage regulator.


Volker

Davo

Re: Need help with bipolar 48v supply....?
« Reply #2 on: January 20, 2010, 07:08:00 PM »
Nice, just learned somethin... cheers Volker

Eliani

Re: Need help with bipolar 48v supply....?
« Reply #3 on: December 31, 2016, 10:59:23 AM »
Did you ever end up racking the channelstrips? I just acquired 96 of them...  8)

Wel actually I bought two ATI Paragon 2 Consoles and want to make a test setup to power the channelstrips for when I need to do some work on them...
"Iron Projects" at Eli-Audio.com

Eliani

Re: Need help with bipolar 48v supply....?
« Reply #4 on: March 12, 2019, 07:07:47 AM »
Wel, if anybody would be interested, I did actually finish a PSU design for the ATI channel-strips...
And a custom wound transformer too by the way...

"Iron Projects" at Eli-Audio.com

pucho812

Re: Need help with bipolar 48v supply....?
« Reply #5 on: March 12, 2019, 07:11:15 PM »
wouldn't it be easier to just by a couple of OEM PSU's with floating output run them in series and connect common to ground to have a bipolar output?
You tell me whar a man gits his corn pone, en I'll tell you what his 'pinions is.


 

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