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From: ferguson@tc.fluke.COM (Ed Ferguson)
Newsgroups: sci.electronics
Subject: Voltage Regulators in Parallel
Message-ID: <1991May16.165916.12600@tc.fluke.COM>
Date: 16 May 91 16:59:16 GMT
Organization: John Fluke Mfg. Co., Inc., Everett, WA
Lines: 10

I'm adding voltage regulation to my audio amp to improve performance.
Vout is +/- 28 V and the amp draws 3A on each peak.  National makes an 
adjustable 3A positive regulator (LM150) but I don't see a 3A negitive
adjustable regulator offered.

Could two LM317Ts (1.5A each) and two LM337Ts (1.5A each) operate in
parallel to supply the +/- rails at 3A?  Or is a regulator with
a series pass transistor the better way to get more current?

Ed Ferguson