A Question about Linear Regulators

alexmoose · 22nd February 2007, 11:28 PM

Hello everybody!

I am looking to impliment a simple linear regulator in my latest tube project to reduce the number of capacitors needed, and to make the DC more pure.

I know bits and pieces of how a linear regulator works, however my trouble comes when I try to impliment one. I have read the Wikipedia on them 1000s of times, but I still don't quite understand how to design my own and impliment that one.

I want to use a linear regulator to supply 300v at 4ma, The transistor I would like to use is the TIP50, I just assumed use a 12v Zener (it seems pretty standard), but I am trying to figure out how fully impliment the design. Mainly, I am trying to figure out how to determain R1 (See Wikipedia)

http://en.wikipedia.org/wiki/Linear_regulator

Thank you all so much,
Alex

Leolabs · 23rd February 2007, 01:23 AM

300V with a 12V zener????

jackinnj · 23rd February 2007, 04:07 AM

go to National Semi's website and search under Maida -- SY's favorite regulator -- there is a really nice HV regulator design.

22nd February 2007, 11:28 PM	#1
alexmoose diyAudio Member Join Date: Mar 2006 Location: Michigan	A Question about Linear Regulators Hello everybody! I am looking to impliment a simple linear regulator in my latest tube project to reduce the number of capacitors needed, and to make the DC more pure. I know bits and pieces of how a linear regulator works, however my trouble comes when I try to impliment one. I have read the Wikipedia on them 1000s of times, but I still don't quite understand how to design my own and impliment that one. I want to use a linear regulator to supply 300v at 4ma, The transistor I would like to use is the TIP50, I just assumed use a 12v Zener (it seems pretty standard), but I am trying to figure out how fully impliment the design. Mainly, I am trying to figure out how to determain R1 (See Wikipedia) http://en.wikipedia.org/wiki/Linear_regulator Thank you all so much, Alex

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23rd February 2007, 01:23 AM	#2
Leolabs diyAudio Member Join Date: Dec 2004 Location: Bukit Mertajam	300V with a 12V zener????

23rd February 2007, 04:07 AM	#3
jackinnj diyAudio Member Join Date: Apr 2002 Location: Llanddewi Brefi, NJ	go to National Semi's website and search under Maida -- SY's favorite regulator -- there is a really nice HV regulator design.

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