My take on a discrete shunt voltage regulator - Page 2

Tham · 22nd October 2009, 01:52 AM

Good work Iko! But it also mean that I will have to build more of these shunties again

. Thanks for sharing.

ikoflexer · 22nd October 2009, 01:58 AM

Thanks Tham! But if you're not fast enough another version comes out

Tham · 22nd October 2009, 02:54 AM

Iko, maybe I should start with a 12V 3A v2 for my T amp to replace the v1.5 used currently

.

ikoflexer · 22nd October 2009, 03:03 AM

Quote:

Originally Posted by Tham

Iko, maybe I should start with a 12V 3A v2 for my T amp to replace the v1.5 used currently

.

Your decision to make. I'm here to cheer you on if you go for it.

How is the v1.5 doing so far? Does it sound any better than a regular CRC psu? Did you notice any difference?

Tham · 22nd October 2009, 03:22 AM

v1.5 is stable and sounding great in my DAC, B1 /LDR pre and Salas RIAA phonostage. The high current version in the T amp runs hot but remain stable up to now. My current (almost all DIY) system with almost every gear power by v1.5 shunties built p2p sounded cleaner than anything I had before.

HiFiNutNut · 22nd October 2009, 09:33 PM

Ikoflexer,

In your schematic, q2n5088 is a 2n5088, right? throughout your schematic all component names use the actual part names, except this one. I guess it may be clearer to rename it, because there are actually some part names called q2nxxxxx from my memory.

Regards,
Bill

ikoflexer · 22nd October 2009, 11:48 PM

Quote:

Originally Posted by Tham

v1.5 is stable and sounding great in my DAC, B1 /LDR pre and Salas RIAA phonostage. The high current version in the T amp runs hot but remain stable up to now. My current (almost all DIY) system with almost every gear power by v1.5 shunties built p2p sounded cleaner than anything I had before.

That's good news. Thanks for the report! BTW, I hope you have one shunt per channel!

ikoflexer · 22nd October 2009, 11:49 PM

Quote:

Originally Posted by HiFiNutNut

Ikoflexer,
In your schematic, q2n5088 is a 2n5088, right? throughout your schematic all component names use the actual part names, except this one. I guess it may be clearer to rename it, because there are actually some part names called q2nxxxxx from my memory.
Regards,
Bill

Yes Bill, q2n5088 is the same as 2n5088. I'll change the image as soon as I get a chance.

stormsonic · 23rd October 2009, 02:32 PM

Iko, MOSFETs from V1 are not OK here (IRFP240)?

ikoflexer · 23rd October 2009, 02:39 PM

Quote:

Originally Posted by stormsonic

Iko, MOSFETs from V1 are not OK here (IRFP240)?

I think I did mention before that many other n-channel mosfets would work, but some of the frequency characteristics of the regulator would be different from one mosfet to another.

I didn't try it with the irfp240, but I don't see why it wouldn't work.

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22nd October 2009, 01:52 AM	#11
Tham diyAudio Member Join Date: Jun 2006	Good work Iko! But it also mean that I will have to build more of these shunties again . Thanks for sharing.

22nd October 2009, 01:58 AM	#12
ikoflexer diyAudio Moderator Join Date: May 2008 Location: Toronto	Thanks Tham! But if you're not fast enough another version comes out

22nd October 2009, 02:54 AM	#13
Tham diyAudio Member Join Date: Jun 2006	Iko, maybe I should start with a 12V 3A v2 for my T amp to replace the v1.5 used currently .

22nd October 2009, 03:22 AM	#15
Tham diyAudio Member Join Date: Jun 2006	v1.5 is stable and sounding great in my DAC, B1 /LDR pre and Salas RIAA phonostage. The high current version in the T amp runs hot but remain stable up to now. My current (almost all DIY) system with almost every gear power by v1.5 shunties built p2p sounded cleaner than anything I had before.

22nd October 2009, 09:33 PM	#16
HiFiNutNut diyAudio Member Join Date: May 2004 Location: Sydney	Ikoflexer, In your schematic, q2n5088 is a 2n5088, right? throughout your schematic all component names use the actual part names, except this one. I guess it may be clearer to rename it, because there are actually some part names called q2nxxxxx from my memory. Regards, Bill

23rd October 2009, 02:32 PM	#19
stormsonic diyAudio Member Join Date: Aug 2008	Iko, MOSFETs from V1 are not OK here (IRFP240)?

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