Answer by Mathew Tate for LM317 Voltage Regulator + ammeter = firecracker?
I wanted to follow up after some more testing. Thank you all again for the feedback, as it has helped to pinpoint the issue and I believe the circuit is working as expected now.The first problem was,...
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Answer by Spehro Pefhany for LM317 Voltage Regulator + ammeter = firecracker?
It's possible you connected the LM317 backwards so that it was conducting as a diode. That's why you got about 12V out rather than 1.25V. Then when you shorted the output by turning your meter to...
View ArticleAnswer by Peter Bennett for LM317 Voltage Regulator + ammeter = firecracker?
If you had a short in place of the potentiometer, you should have read 1.25 volts (or so) at the output of the LM317, not 12.5 volts.When you changed your meter to read current, presumably moving the...
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LM317 Voltage Regulator + ammeter = firecracker?
simulate this circuit– Schematic created using CircuitLabI don't know what I'm doing wrong. Perhaps someone can explain this. Is there any reason an ammeter would cause a voltage regulator to...
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