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Old 24th August 2005, 08:04 AM   #1
JDeV is offline JDeV  South Africa
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Default 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?
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Old 24th August 2005, 08:08 AM   #2
316a is offline 316a  England
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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
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Old 24th August 2005, 09:14 AM   #3
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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....
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Old 24th August 2005, 09:40 AM   #4
JDeV is offline JDeV  South Africa
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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.
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Old 24th August 2005, 10:59 AM   #5
JPS is offline JPS  India
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Have a look.

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


regards
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Old 24th August 2005, 11:14 AM   #6
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Default Re: Solid state HT regulator??

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
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Old 24th August 2005, 11:21 AM   #7
jeapel is offline jeapel  Canada
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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
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Old 24th August 2005, 11:35 AM   #8
JDeV is offline JDeV  South Africa
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Good stuff

Thanx to you all.
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Old 24th August 2005, 11:36 AM   #9
jeapel is offline jeapel  Canada
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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
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Old 24th August 2005, 01:59 PM   #10
amperex is offline amperex  United States
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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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