The simplistic Salas low voltage shunt regulator - Page 503

AndrewT · 6th May 2012, 01:31 PM

Post5019
Now reduce the loop area of the main current flow route.
Squeeze the sense lines as close as possible (low loop area).

RCruz · 6th May 2012, 05:22 PM

Now really tight (as p2p goes).

PS: Does anyone know this supplier ? outillage.e44.com

E44-Eurocard motif centronix/sub-d - 100x160mm - fr4 (1pc/bl) à 5,00 ?[productImages]/0/

Overdream · 6th May 2012, 05:42 PM

Hello there
Im noob here
Please advice....

Im currently building a CMoy with salas shunt reg for PSU
I've got the board from CRT ( thank to him )

But when i done soldering, it didnt worked well....
Im using transformer 50vac, 2x15v
And im using MSR860 diode, resistor 10R 5 watt
I only got 9.7v from V-
But V+ is zero....
Please advice....

Salas · 6th May 2012, 08:05 PM

Quote:

Originally Posted by AndrewT

No, I am not right.
I am asking Salas, where should the cap C3 be?

Nearest to the Mosfet depending on how much heat is being dissipated. If its a high dissipation setting better compromise distance.

Salas · 6th May 2012, 08:09 PM

Quote:

Originally Posted by Overdream

But when i done soldering, it didnt worked well....
Im using transformer 50vac, 2x15v
And im using MSR860 diode, resistor 10R 5 watt
I only got 9.7v from V-
But V+ is zero....
Please advice....

I see a bunch of voltage reference leds not emitting. See if you got one or more of them wrongly orientated or dead from too hot an iron or long soldering. If your meter can light an led in diode mode just test them one by one with same and correct in circuit polarity without removing them first. If meter can't, use a 9V battery fast.

AndrewT · 7th May 2012, 09:56 AM

Use a 9V battery and a 1k resistor.

Salas · 9th May 2012, 08:01 AM

What are the news of the made in Japan low voltage mod Reflektor? Worked stable in the end for all there? Did it bring goodness to music? I encourage our Japanese friends to write their story here too, and show some pictures if they have also.

agussug · 14th May 2012, 03:51 PM

Dear Salas,

I want to build your shunt regulator with this schematic for +5V output for my DAC

I use PCM1798 and CS8416.
Can this regulator maintain +5V on its output as PCM1798 and CS8416 greatly vary in current requirement as the sampling frequency change?
For 44.1KHz, PCM1798 require about 25mA, CS8416 require about 14.5mA.
For 192Khz, PCM1798 require about 45mA, CS8416 require about 40.5mA.
I usually play different sampling rate music files with my DAC.

Best Regards

Salas · 14th May 2012, 04:39 PM

Make R1=22R and don't use C6.

studiostevus · 18th May 2012, 08:38 AM

Everyone,

Did anyone ever built a SMD version of the SSLV?

What about:
- Component choices (MOSFETS, resistors, caps)
- Layout considerations

I would very much like to learn from others before building....
thanks

14th May 2012, 03:51 PM	#5028
agussug diyAudio Member Join Date: Jul 2010	Need Information Please Dear Salas, I want to build your shunt regulator with this schematic for +5V output for my DAC I use PCM1798 and CS8416. Can this regulator maintain +5V on its output as PCM1798 and CS8416 greatly vary in current requirement as the sampling frequency change? For 44.1KHz, PCM1798 require about 25mA, CS8416 require about 14.5mA. For 192Khz, PCM1798 require about 45mA, CS8416 require about 40.5mA. I usually play different sampling rate music files with my DAC. Best Regards

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6th May 2012, 01:31 PM	#5021
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Post5019 Now reduce the loop area of the main current flow route. Squeeze the sense lines as close as possible (low loop area).

6th May 2012, 05:42 PM	#5023
Overdream diyAudio Member Join Date: May 2011	Hello there Im noob here Please advice.... Im currently building a CMoy with salas shunt reg for PSU I've got the board from CRT ( thank to him ) But when i done soldering, it didnt worked well.... Im using transformer 50vac, 2x15v And im using MSR860 diode, resistor 10R 5 watt I only got 9.7v from V- But V+ is zero.... Please advice....

7th May 2012, 09:56 AM	#5026
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Use a 9V battery and a 1k resistor.

9th May 2012, 08:01 AM	#5027
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	What are the news of the made in Japan low voltage mod Reflektor? Worked stable in the end for all there? Did it bring goodness to music? I encourage our Japanese friends to write their story here too, and show some pictures if they have also.

14th May 2012, 04:39 PM	#5029
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	Make R1=22R and don't use C6.

18th May 2012, 08:38 AM	#5030
studiostevus diyAudio Member Join Date: Oct 2009 Location: Brunei	Everyone, Did anyone ever built a SMD version of the SSLV? What about: - Component choices (MOSFETS, resistors, caps) - Layout considerations I would very much like to learn from others before building.... thanks