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The simplistic Salas low voltage shunt regulator
The simplistic Salas low voltage shunt regulator
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Old 2nd January 2012, 10:33 PM   #4701
Salas is online now Salas  Greece
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The simplistic Salas low voltage shunt regulator
Thanks for the good words. What do you mean climbs very slowly? What kind of voltage climb value?
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Old 2nd January 2012, 10:36 PM   #4702
RCruz is offline RCruz  Switzerland
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The simplistic Salas low voltage shunt regulator
It climbs from zero to 28v in 5 minutes when connected to the riaa amp. (The led starts very dim and grows stronger within minutes.)

It climbs much faster when connected with a dummy load on the bench.
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Old 2nd January 2012, 10:43 PM   #4703
Salas is online now Salas  Greece
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The simplistic Salas low voltage shunt regulator
There is something wrong going on initially. There should always be 4mA available to charge the filter capacitor. Can 2000uF be overkill to start up? Here is an alternative routing by the way.
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File Type: gif Rpcb.gif (27.3 KB, 562 views)
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Old 2nd January 2012, 11:00 PM   #4704
RCruz is offline RCruz  Switzerland
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The simplistic Salas low voltage shunt regulator
Thank you Salas

Your routing looks awesome.... I will try it soon. (Can I use BC327 ?)
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Old 2nd January 2012, 11:04 PM   #4705
Salas is online now Salas  Greece
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The simplistic Salas low voltage shunt regulator
Of course 327 also. Its a consult with CRT the routing. I give guidelines he does the art, back n' forth, till I say OK and he likes too.
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Old 2nd January 2012, 11:07 PM   #4706
RCruz is offline RCruz  Switzerland
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The simplistic Salas low voltage shunt regulator
CRT ?
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Old 2nd January 2012, 11:09 PM   #4707
Salas is online now Salas  Greece
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The simplistic Salas low voltage shunt regulator
My friend the Eagle man. Member.
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Old 2nd January 2012, 11:13 PM   #4708
RCruz is offline RCruz  Switzerland
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The simplistic Salas low voltage shunt regulator
I should have know better... sorry Eagle man.
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Old 2nd January 2012, 11:22 PM   #4709
klewis is offline klewis  United States
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Salas,

I have run simulations comparing Reflektor and V1.2. The V1.2 is at 60v out the Reflektor is at 10v out. The first image is the Reflecktor, the second the V1.2, the third is the AC analysis V(005) is the Reflektor, V(outpos1) is V1.2. Are my results correct (relatively speaking) ?

Thanks

Ken
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File Type: png Reflektor Schema.PNG (66.3 KB, 550 views)
File Type: png V1.2 positive schema.PNG (74.9 KB, 544 views)
File Type: png Graph R vs V1.2.PNG (85.7 KB, 530 views)
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Old 2nd January 2012, 11:33 PM   #4710
RCruz is offline RCruz  Switzerland
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The simplistic Salas low voltage shunt regulator
What are the solid lines ?

What are the dotted lines ?
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