Solid state HT regulator??

JDeV · 24th August 2005, 08:04 AM

Anybody got a design, that I may use, for a solidstate high voltage regulator to use for pre-amp? (320V dc)

Also, where can I find VB408 or HIP5600 regulator IC's?

316a · 24th August 2005, 08:08 AM

Hello ,
How about a hybrid ? I'm having good results from a stack of current souce fed 85A2 with a TIP50 darlington follower on top

cheers

316a

kathodyne · 24th August 2005, 09:14 AM

hi!,

i have a few books were they use regulated hv...i could copy these schematics for you...
they use bd140

if you like, say so....

JDeV · 24th August 2005, 09:40 AM

Quote:

Originally posted by kathodyne
hi!,

i have a few books were they use regulated hv...i could copy these schematics for you...
they use bd140

if you like, say so....

Would appreciate it. Thanx

Reason why I don't want a tube version, lack of space inside box for additional tubes/trafo's.

JPS · 24th August 2005, 10:59 AM

Have a look.

http://geek.scorpiorising.ca/Geek-0.html

regards

Tubes4e4 · 24th August 2005, 11:14 AM

Hi,

Quote:

Also, where can I find VB408 or HIP5600 regulator IC's? [/B]

AFAIR VB408 is out of production and definitely is unobtanium over here in Germany.

Tom

jeapel · 24th August 2005, 11:21 AM

hi

check my 300volt regulator

www.loginnovation.com/jeapel

-the RC time 47k and 22 uF give a long RC for
a very good filter out the ripple

-for one step better you can boost 22uF to 50 to 100uF

-i don t like hv regulator with IC because IC work with
negative feedback and feedback==possibly voltage
overshoot and possibly unstable

-the source follower regulator work very well and
is fulll proof stable

bye

JDeV · 24th August 2005, 11:35 AM

Good stuff

Thanx to you all.

jeapel · 24th August 2005, 11:36 AM

hi i forgot

-after the no hum from your 320 volt the next step
will be the hum reduction from your heaters

-maybe 100ohm to ground like me

-maybe a +v polarisation on heaters

amperex · 24th August 2005, 01:59 PM

The TL783C is a three terminal IC type regulator that was designed for high voltage. I do not remember the specs, but have 100-150 in stock.

Update: This IC regulator (positive output) has a 125 VDC rating. I understand it can perform with a difference of 125 VDC or be floated up in voltage above ground for a differential of 125 VDC input to output.

In other words, it should perform well with an input of say 350 VDC & an output of 250 VDC.

24th August 2005, 08:04 AM	#1
JDeV diyAudio Member Join Date: Oct 2002 Location: Cape Town	Solid state HT regulator?? Anybody got a design, that I may use, for a solidstate high voltage regulator to use for pre-amp? (320V dc) Also, where can I find VB408 or HIP5600 regulator IC's? __________________ "Be carefull who's advice you buy, but be patient with those who supply it." From Baz Luhrmann's - Everybody’s Free (To Wear Sunscreen)

24th August 2005, 09:14 AM	#3
kathodyne diyAudio Member Join Date: Feb 2005 Location: leeuwarden, netherlands	hi!, i have a few books were they use regulated hv...i could copy these schematics for you... they use bd140 if you like, say so.... __________________ emission over emittor

24th August 2005, 11:35 AM	#8
JDeV diyAudio Member Join Date: Oct 2002 Location: Cape Town	Good stuff Thanx to you all. __________________ "Be carefull who's advice you buy, but be patient with those who supply it." From Baz Luhrmann's - Everybody’s Free (To Wear Sunscreen)

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24th August 2005, 08:08 AM	#2
316a diyAudio Member Join Date: Dec 2002 Location: West London	Hello , How about a hybrid ? I'm having good results from a stack of current souce fed 85A2 with a TIP50 darlington follower on top cheers 316a

24th August 2005, 10:59 AM	#5
JPS diyAudio Member Join Date: Sep 2005	Have a look. http://geek.scorpiorising.ca/Geek-0.html regards

24th August 2005, 11:21 AM	#7
jeapel diyAudio Member Join Date: Sep 2003 Location: quebec	hi check my 300volt regulator www.loginnovation.com/jeapel -the RC time 47k and 22 uF give a long RC for a very good filter out the ripple -for one step better you can boost 22uF to 50 to 100uF -i don t like hv regulator with IC because IC work with negative feedback and feedback==possibly voltage overshoot and possibly unstable -the source follower regulator work very well and is fulll proof stable bye

24th August 2005, 11:36 AM	#9
jeapel diyAudio Member Join Date: Sep 2003 Location: quebec	hi i forgot -after the no hum from your 320 volt the next step will be the hum reduction from your heaters -maybe 100ohm to ground like me -maybe a +v polarisation on heaters

24th August 2005, 01:59 PM	#10
amperex diyAudio Member Join Date: Feb 2005 Location: MI	The TL783C is a three terminal IC type regulator that was designed for high voltage. I do not remember the specs, but have 100-150 in stock. Update: This IC regulator (positive output) has a 125 VDC rating. I understand it can perform with a difference of 125 VDC or be floated up in voltage above ground for a differential of 125 VDC input to output. In other words, it should perform well with an input of say 350 VDC & an output of 250 VDC.

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