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audioguru
Nobel Prize Winner
Canada
4218 Posts |
 Posted - Aug 17 2013 : 08:29:40 AM
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Simply look at the datasheet for an LM317t to see that its maximum output current is only 1.5A and it might need a huge heatsink.
Most circuits on the internet about the LM317, LM338 and LM350 (like the project you found here) are WRONG because they use a 240 ohm programming resistor that can be used only on the more expensive LM117, LM138 and LM150 regulator ICs.
The LM317, LM338 and LM350 need a 120 ohm or less programming resistor to prevent the output voltage from rising when there is no load current. |
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10 amp supply
I need an out put of between 5-14v Thank you, Robbie .