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6/26/2025, 1:03:34 PM
>>2920495
i want to detect battery reverse polarity with an op amp that is single supply (ground referenced) +3.3v. pic related is the battery in the correct orientation. now imagine its polarity is flipped. will this actually work IRL or is the clamping somehow insufficient and will blow up my op amp by exceeding its absolute maximum negative voltage limit on the input?
fwiw the battery is an 18650. i would need to divide down the voltage so as not to exceed the +3.3v rail... or just rely on the clamping diodes, assuming they would work.
i want to detect battery reverse polarity with an op amp that is single supply (ground referenced) +3.3v. pic related is the battery in the correct orientation. now imagine its polarity is flipped. will this actually work IRL or is the clamping somehow insufficient and will blow up my op amp by exceeding its absolute maximum negative voltage limit on the input?
fwiw the battery is an 18650. i would need to divide down the voltage so as not to exceed the +3.3v rail... or just rely on the clamping diodes, assuming they would work.
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