The simplistic Salas low voltage shunt regulator - Page 572 - diyAudio
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Old 13th February 2013, 10:15 PM   #5711
Salas is offline Salas  Greece
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If they will be too close to the load maybe you can trade off. That is why you make them so small so to be really close, right?
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Old 14th February 2013, 11:28 AM   #5712
RollE2k is offline RollE2k  Sweden
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The reason is actually to fit them inside my case, i have room for two boards in the case that is approx SSLV-size. Unfortunately i need four regulators, which is why i need more compact design. And they will have approx 20cm wiring to the load. Also current will be low, approx 110-120mA total, and the load will draw approx 72-73mA
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Old 14th February 2013, 11:53 AM   #5713
massimo is offline massimo  Italy
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Roll, would you mind post a bigger pic of your layout? A downloadable pdf will be fine as well.
Tack (thanks)
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Old 14th February 2013, 12:09 PM   #5714
Salas is offline Salas  Greece
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Don't feed ebay copiers pls.
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Old 14th February 2013, 12:40 PM   #5715
massimo is offline massimo  Italy
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Old 14th February 2013, 12:57 PM   #5716
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Old 14th February 2013, 02:56 PM   #5717
RollE2k is offline RollE2k  Sweden
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massimo: I could, buy if Salas don't want me to publish it in large format, then i won't.

Salas, do you think it would matter much with the 20cm wires? Since in my circuit it almost would be "good" to have resistance in between, wouldn't this just be pretty much it?
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Old 14th February 2013, 03:06 PM   #5718
massimo is offline massimo  Italy
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Quote:
Originally Posted by RollE2k View Post
massimo: I could, buy if Salas don't want me to publish it in large format, then i won't.
Yes, I read Salas' concern. No problem, just curiosity.
But if you wish you can send me a PM
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Old 14th February 2013, 05:20 PM   #5719
Salas is offline Salas  Greece
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Quote:
Originally Posted by RollE2k View Post
Salas, do you think it would matter much with the 20cm wires? Since in my circuit it almost would be "good" to have resistance in between, wouldn't this just be pretty much it?
20cm without sense degrades resolution. Its not only the mOhm its the inductance too. Keep them minimal in length and thick if in two wire mode. Twisted pair also for narrow loop area.
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Old 14th February 2013, 10:34 PM   #5720
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Default C301, C302... cap question

I'm building a reg with 8V output with mosphet. If my dc input will be around 15V to 18V dc, do I need the caps rated at 50-63v (as per the BiB manual quote below?)

"C102,202,302,104,204,304 4,7uF-10uF/63V MKT radial
C101,201,301 220uF/50-63V. C103,203,303 47uF/50-63V.
C105,205 4700uF/63V pitch 10mm snap-in up to 200mA. 10000uF/63V 10mm snap-in ''hot-rod''
"

Will caps rated at 25V be OK in my case?

Thanks

Last edited by marcus1; 14th February 2013 at 10:37 PM.
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