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Old 16th October 2009, 09:52 PM   #1
back is offline back  Greece
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Default ucd700hg +15v

hi guys.

i was wondering about the +15v existing only at the ucd700`s

what is it for and how critical is it`s quality about sound.

the +-12 have the hxr`s but this?

thanks in advance
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Old 18th October 2009, 04:43 PM   #2
back is offline back  Greece
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nobody knows about this voltage?

i am talking about the one referenced at the negative rail.
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Old 18th October 2009, 05:58 PM   #3
stoc005 is online now stoc005  United States
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Default Probably used for gate drive on lower FETs

Should it be clean? Yes. Should it be as clean as a power supply for an analog preamp? No. I'd use a SMPS for this function off the most positive supply. If you sync. it to the Class D module, noise should not be an issue. Does not need to regulated really tight either.
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Old 18th October 2009, 07:20 PM   #4
back is offline back  Greece
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so an lm 317 from ebay i am using is more than enough?
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Old 19th October 2009, 03:41 AM   #5
stoc005 is online now stoc005  United States
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Default LM317? Should be fine.

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Old 19th October 2009, 06:44 AM   #6
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Originally Posted by stoc005 View Post
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thanks
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