+/- 70V shunt reg

pellesmil · 12th January 2012, 07:37 PM

Hi
i need a +/- 70V shunt reg. for my brand new Holton HPA-nxV300rev2 (Anthony has added separate input-driver voltage with rev2)
im looking for a existing design or a design that is possible to mod to reach 70V

looking for design, drawings, boards, kits or finished parts.

Any suggestions?

pellesmil · 13th January 2012, 04:45 PM

no ideas?
could possibly try to modify the: "simplistic shunt regulator" if the right component are present,

Osvaldo de Banfield · 13th January 2012, 04:48 PM

The TL431 plus BJT´s or MOSFET´s (power MOSFET´s) are quite fine and easy to build.

AndrewT · 14th January 2012, 03:15 PM

Choose one of the various Salas Shunt Regulators to suit your voltages.

pellesmil · 14th January 2012, 06:26 PM

Quote:

Originally Posted by AndrewT

Choose one of the various Salas Shunt Regulators to suit your voltages.

Yepp , need to trawl thru some more pages to find one that suits my voltage,
i,l keep on reading.

P.

Salas · 14th January 2012, 06:33 PM

Use 2 SSHV1 with R4=43K configured like below, only use proper secondary ratings and substitute the chips example for shunt regs:

Salas · 14th January 2012, 06:40 PM

Like this:

pellesmil · 14th January 2012, 09:44 PM

Thank you,
i guess the SSR1.1 is limited to 45V as per spec?
i have ordered 2 SSR1.1 for other application on the GB that ends tomorrow (or today)

P.

Salas · 15th January 2012, 01:26 AM

Yes, limited.

12th January 2012, 07:37 PM	#1
pellesmil diyAudio Member Join Date: Nov 2010 Location: Near, Oslo Norway	+/- 70V shunt reg Hi i need a +/- 70V shunt reg. for my brand new Holton HPA-nxV300rev2 (Anthony has added separate input-driver voltage with rev2) im looking for a existing design or a design that is possible to mod to reach 70V looking for design, drawings, boards, kits or finished parts. Any suggestions?

13th January 2012, 04:48 PM	#3
Osvaldo de Banfield diyAudio Member Join Date: Dec 2011 Location: Barrio Garay,Almirante Brown, Buenos Aires, Argentina	The TL431 plus BJT´s or MOSFET´s (power MOSFET´s) are quite fine and easy to build. __________________ A veces pongo un circo y me crecen los enanos... "Que se llama soledad", Joaquin Sabina, el capo.

14th January 2012, 03:15 PM	#4
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Choose one of the various Salas Shunt Regulators to suit your voltages. __________________ regards Andrew T.

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13th January 2012, 04:45 PM	#2
pellesmil diyAudio Member Join Date: Nov 2010 Location: Near, Oslo Norway	no ideas? could possibly try to modify the: "simplistic shunt regulator" if the right component are present,

14th January 2012, 09:44 PM	#8
pellesmil diyAudio Member Join Date: Nov 2010 Location: Near, Oslo Norway	Thank you, i guess the SSR1.1 is limited to 45V as per spec? i have ordered 2 SSR1.1 for other application on the GB that ends tomorrow (or today) P.

15th January 2012, 01:26 AM	#9
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	Yes, limited.

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