Power supply 4.5 A with 3 LM317 in parallel

Published:2013/3/18 4:10:00 Author:Ecco | Keyword: Power supply, 4.5 A | From:SeekIC

This lm317 variable power supply can supply a voltages from 1.2V to 30V with a current 3 amperes, just as the title of this series based on LM317T voltage regulator, the LM317T regulator provide around 1.5 amperes on the heatsink, so by installing a parallel two or three of them will get a voltage source capable of providing 3 amperes. Obviously this also depends on the transformer used. TheLM317T regulators are able to withstand short circuit at the output of the source and not so easily destroyed like LM350K or LM338K regulators, the regulator IC used in this circuit using ST manufacturing company and have shown positive result.



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