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Old 22nd February 2007, 11:28 PM   #1
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Default 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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Old 23rd February 2007, 01:23 AM   #2
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300V with a 12V zener????
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Old 23rd February 2007, 04:07 AM   #3
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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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