Lm317/337 tracking preregs - Page 2

5th element · 14th August 2003, 04:15 PM

Just the same as the positive rail but reverse the polarity of the polarised 1uf cap.

Appart from the teething problems I always seem to get, once they where out of the way everything works fine.

hugonot · 14th August 2003, 07:07 PM

A lot stuff about regulators are in " The Art of electronics " - Cambridge University Press.

There are many applications of discrette and ic's regulators - good discrette regulators, like this one in cool follower, but with jfet, have about 20dB less hum than IC's.

You could try regulated power supply in power amplifier, (e.g. Zen v5 www.passdiy.com) LM317 + power NPN is a good idea.

TerryC · 3rd March 2006, 10:29 PM

Can anyone comment on either theoretical or actual performance of this design relative to the standard single regulator design?

14th August 2003, 07:07 PM	#12
hugonot diyAudio Member Join Date: Nov 2002 Location: Poland	REGULATORS A lot stuff about regulators are in " The Art of electronics " - Cambridge University Press. There are many applications of discrette and ic's regulators - good discrette regulators, like this one in cool follower, but with jfet, have about 20dB less hum than IC's. You could try regulated power supply in power amplifier, (e.g. Zen v5 www.passdiy.com) LM317 + power NPN is a good idea.

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14th August 2003, 04:15 PM	#11
5th element diyAudio Member Join Date: Oct 2002 Location: England	Just the same as the positive rail but reverse the polarity of the polarised 1uf cap. Appart from the teething problems I always seem to get, once they where out of the way everything works fine.

3rd March 2006, 10:29 PM	#13
TerryC diyAudio Member Join Date: Jun 2005 Location: WA-USA	Can anyone comment on either theoretical or actual performance of this design relative to the standard single regulator design?