Recommended · for beginners
How to protect circuits from reversed voltage polarity!
Why people recommend it
Compares diode and P-channel MOSFET reverse polarity protection, showing the MOSFET wastes far less power; a common reference when adding input protection to a board.
Watch for: gate-source voltage limits at higher supply voltages
In their words
A more complete explanation can be found here.
helloworld922 on electronics.stackexchange.com, Jan 2013. CC BY-SA.
See also afrotechmods channel video for an explanation.
Codebeat on electronics.stackexchange.com, Sept 2021. CC BY-SA.
After watching Afrotechmod's tutorial about reverse voltage protection, I wondered if I could incorporate it in a circuit I'm working on.
Tom on electronics.stackexchange.com, Aug 2016. CC BY-SA.
