Ultimate shunt regulator

Uchi Deshi · 5th May 2006, 11:45 AM

I'm going to build ultimate shunt regulator. I used TL431 so far, but I'd like to build something better. I will use low noise voltage reference source,lowpass filter,error amp and reg transistor. So, what do you think about this topology and do you have any suggestions for error opamp and for reg transistor?

peranders · 5th May 2006, 12:06 PM

Max input voltage, max output voltage, max current?

Uchi Deshi · 5th May 2006, 12:11 PM

Rather low voltage and low max current- for supply DAC and solidstate gears:so max current probably 100mA.

peranders · 5th May 2006, 12:53 PM

"Rather low" how much is that?

Uchi Deshi · 5th May 2006, 01:35 PM

Max input voltage:24V Max output

+-)15V;5V.

AndrewT · 5th May 2006, 04:35 PM

Hi,
have a look at Wenzel's site http://www.wenzel.com/index.html

Kaneda did one.

I have a pdf of a discrete version from this forum, no reference unfortunately.

Walt Jung did one in '69.

There are bound to be others if you search.

aparatusonitus · 5th May 2006, 05:07 PM

Quote:

Originally posted by AndrewT

I have a pdf of a discrete version from this forum, no reference unfortunately.

Is it this one?

http://www.diyaudio.com/forums/attac...amp=1139437025

AndrewT · 5th May 2006, 05:22 PM

Well done Apara.
That's the one.

Uchi Deshi · 5th May 2006, 07:16 PM

It looks geat

, nice current source, but it's too complicated I think, we can replace transistors error amp with fast opamp, because in my opinion implementation and PCB layout is one of the key to build fast and ultimate regulator,so do you recommend any type of opamp?

5th May 2006, 11:45 AM	#1
Uchi Deshi diyAudio Member Join Date: Apr 2006 Location: Poland	Ultimate shunt regulator I'm going to build ultimate shunt regulator. I used TL431 so far, but I'd like to build something better. I will use low noise voltage reference source,lowpass filter,error amp and reg transistor. So, what do you think about this topology and do you have any suggestions for error opamp and for reg transistor?

5th May 2006, 12:06 PM	#2
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden Blog Entries: 4	Max input voltage, max output voltage, max current? __________________ /Per-Anders (my first name) or P-A as my friends call me Tube Buffered Gainclone in work \|Thread

5th May 2006, 12:53 PM	#4
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden Blog Entries: 4	"Rather low" how much is that? __________________ /Per-Anders (my first name) or P-A as my friends call me Tube Buffered Gainclone in work \|Thread

5th May 2006, 01:35 PM	#5
Uchi Deshi diyAudio Member Join Date: Apr 2006 Location: Poland	Max input voltage:24V Max output+-)15V;5V.

5th May 2006, 07:16 PM	#9
Uchi Deshi diyAudio Member Join Date: Apr 2006 Location: Poland	It looks geat, nice current source, but it's too complicated I think, we can replace transistors error amp with fast opamp, because in my opinion implementation and PCB layout is one of the key to build fast and ultimate regulator,so do you recommend any type of opamp?


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5th May 2006, 12:11 PM	#3
Uchi Deshi diyAudio Member Join Date: Apr 2006 Location: Poland	Rather low voltage and low max current- for supply DAC and solidstate gears:so max current probably 100mA.

5th May 2006, 04:35 PM	#6
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Hi, have a look at Wenzel's site http://www.wenzel.com/index.html Kaneda did one. I have a pdf of a discrete version from this forum, no reference unfortunately. Walt Jung did one in '69. There are bound to be others if you search.

5th May 2006, 05:22 PM	#8
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Well done Apara. That's the one.

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