- Sat Sep 30, 2023 9:25 am
#244275
Hi!
I'm using a LD1117V33 voltage regulator (https://www.sparkfun.com/products/526) in my project which has the power supplied by 12V from flat-top 18650 Li-Ion batteries. The batteries are removable so that they can be swapped for fresh, but I'm worried about what happens if someone installs the batteries the wrong direction and reverses the polarity.
First, Is the Nano at risk for damage if the voltage regulator is fed the reverse polarity?
Second, if it's at risk, what kind of circuit would I need to add to protect it from the problem? Would it go before or after the regulatlor?
Thanks for your help!
Matthew
I'm using a LD1117V33 voltage regulator (https://www.sparkfun.com/products/526) in my project which has the power supplied by 12V from flat-top 18650 Li-Ion batteries. The batteries are removable so that they can be swapped for fresh, but I'm worried about what happens if someone installs the batteries the wrong direction and reverses the polarity.
First, Is the Nano at risk for damage if the voltage regulator is fed the reverse polarity?
Second, if it's at risk, what kind of circuit would I need to add to protect it from the problem? Would it go before or after the regulatlor?
Thanks for your help!
Matthew