Question About Reverse Polarity and Thermal Protection

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Brady76

Joined Nov 27, 2017
2
(Moderator's note: This thread begins with a question that was asked in post #26 in another thread: https://forum.allaboutcircuits.com/threads/12-volt-lead-acid-battery-cutoff-circuit.134337/)

If I wanted to use this circuit but add reverse polarity protection would I be correct in assuming a Pmosfet would be the simplest solution to add on the input? Also say I was running 3 LEDs and wanted to put some over temperature protection by them, how would I go about hooking up some tc621's to this circuit? Maybe something better or simpler?
 
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