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The simplistic Salas low voltage shunt regulator
The simplistic Salas low voltage shunt regulator
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Old 14th November 2011, 03:11 PM   #4641
milen007 is offline milen007  Indonesia
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i cant find the link where i save the schematic so i just attached it

thanks,
erwin
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File Type: jpg Salas Symetric 5V(2).JPG (386.1 KB, 658 views)
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Old 14th November 2011, 03:17 PM   #4642
merlin el mago is offline merlin el mago
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What do you want to change: output lytic cap 220uF for a MKP film 10uF?
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Old 14th November 2011, 03:24 PM   #4643
milen007 is offline milen007  Indonesia
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hi Merlin

yes. i wondering if i could use 10uf instead of the 220uf on the schematic? or whats the min value should be place at the output of the salas board. as the supplied board already has 220uf on the input

thanks in advance
erwin
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Old 14th November 2011, 03:36 PM   #4644
merlin el mago is offline merlin el mago
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Why do you want to change, depending application it's better lytic, it's intended for digital or analog?
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Old 14th November 2011, 03:40 PM   #4645
milen007 is offline milen007  Indonesia
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hi Merlin

its for analog dac out. i am just wondering if i could change it to 10uf with better quality cap on salas board. instead of 1 pcs 220uf on salas side and another 220uf on the supplied circuit

erwin
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Old 14th November 2011, 03:45 PM   #4646
merlin el mago is offline merlin el mago
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If you have other 220uF at the load input I will say you can't use it at the regulator but lets's Salas to tell us something to be sure.
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Old 14th November 2011, 05:49 PM   #4647
RCruz is offline RCruz  Switzerland
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The simplistic Salas low voltage shunt regulator
Hi erwin

The schematic you are presenting corresponds to SSV1... it will not work with 10u on the output.

It might work with a lower value but I would not go below 47uF.
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Old 14th November 2011, 11:50 PM   #4648
milen007 is offline milen007  Indonesia
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Hi Richardo

Thanks. This is what I am looking for. Superb

Erwin
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Old 15th November 2011, 08:04 PM   #4649
RCruz is offline RCruz  Switzerland
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The simplistic Salas low voltage shunt regulator
Hi Erwin

Save the 10u film cap for vref.
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Old 23rd November 2011, 03:57 AM   #4650
Tham is offline Tham  Malaysia
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Quote:
Originally Posted by Salas View Post
You can just use 12V input to the V1.2R and turn the trimmer down to 5V output. Use first schematic from the left in post #3200.
Better use K170 Q8 in that when targeting 5V. Will work nicer when so low.
Hi Salas,

I have 16V input and K170 at Q8, and I can only adjust Vo to min of 10.6V. Do I need to reduce the input to output 5V?
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