Power supply circuit » LM338 http://apowersupply.com Sat, 04 Feb 2012 16:06:35 +0000 en hourly 1 http://wordpress.org/?v=3.1 LM338 20A power supply http://apowersupply.com/lm338-adjustable-power-supply-15.html http://apowersupply.com/lm338-adjustable-power-supply-15.html#comments Thu, 02 Feb 2012 15:37:16 +0000 aPowerSupply.com http://apowersupply.com/?p=15 This is a regulated and adjustable power supply which can deliver up to 20A and adjustable voltage between 4 and 30V. It is easy to build and uses LM338 and 741 integrated circuits. VR1 it is used to adjust the output voltage. Use very good heatsinks for LM338 and BD140 transistor. The transformer secondary must deliver 18 volts a.c.

LM338 adjustable power supply circuit diagram

lm338 adjustable power regulater

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