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 Forum index » DIY Hardware and Software » Thomas Henry designs
VCO-1 Power Supply [solved]
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mr0riiz



Joined: Jan 19, 2018
Posts: 4
Location: Aarhus, Denmark

PostPosted: Fri Jan 19, 2018 8:14 am    Post subject: VCO-1 Power Supply [solved]
Subject description: How much current do i want the power supply to give the vco-1
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I am fairly new in electronics, but very exited.

The VCO-1 needs 15 volts, but how much current should the PSU give.

Would this be standard for a lot of Modular Synthesizers?

Last edited by mr0riiz on Sun Jan 21, 2018 6:49 am; edited 2 times in total
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mr0riiz



Joined: Jan 19, 2018
Posts: 4
Location: Aarhus, Denmark

PostPosted: Fri Jan 19, 2018 8:15 am    Post subject: Reply with quote  Mark this post and the followings unread

would 150mA do the job?
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g.gabba



Joined: Nov 29, 2008
Posts: 284
Location: berlin
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PostPosted: Sat Jan 20, 2018 12:28 pm    Post subject: Reply with quote  Mark this post and the followings unread

yes 150mA would do the job
not many modules of this kind need more than 25mA
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mr0riiz



Joined: Jan 19, 2018
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Location: Aarhus, Denmark

PostPosted: Sun Jan 21, 2018 6:50 am    Post subject: thank you. Reply with quote  Mark this post and the followings unread

Thank you so much for clarifying Smile
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g.gabba



Joined: Nov 29, 2008
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PostPosted: Sun Jan 21, 2018 10:45 am    Post subject: Reply with quote  Mark this post and the followings unread

youre welcome Smile

there are 3 main partys in sdiy
+/-15V
+/-12V
and +9V
if u have meant that by "standard"

so ur VCO need plus AND minus 15V

for the future u should consider something more powerfull, many obscure behaviors are coming from weak powersources
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mr0riiz



Joined: Jan 19, 2018
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Location: Aarhus, Denmark

PostPosted: Sun Jan 21, 2018 12:42 pm    Post subject: Reply with quote  Mark this post and the followings unread

oh, i didn't realise that i would need both plus and minus voltage.

How could i go about this, is there any design that can turn my 15v power supply into a +/- 15 v. or would i need two?
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g.gabba



Joined: Nov 29, 2008
Posts: 284
Location: berlin
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PostPosted: Tue Jan 23, 2018 8:55 am    Post subject: Reply with quote  Mark this post and the followings unread

use a second one
connect one ground with one +15V --> this is ur new ground

the remaining +15V is ur new +15V
the remaining ground is ur new -15V
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