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Power supply +20V/15A and +12V/3A

2015-03-24 18:55  
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The circuit is based on application of National Semiconductor. First is constituted by three voltage regulators LM338 [IC1-2-3] connected ``in parallel` `. The each one regulator has the possibility of giving 5 A in his output. Also exists the possibility to regulate the output voltage from +4.5V until 25V DC, stabilized. The voltage regulation in the output becomes with the TR1. If it does not exist the need of this continuous output voltage regulation, then we can measure the resistance value of trimmer TR1 in the particular output voltage and him replace with proportional value constant resistance. visit page.Power supply +20V/15A and +12V/3A - schematic