Another nice application of positive feedback to op-amp:
Can you think of building a SET-RESET latch circuit, which could be built using an op-amp, resistors and diodes? Assume that the op-amp is a rail-to-rail op-amp.
Hints: You might need to use diodes in feedback and you might need to use positive feedback.
If you are too much exhausted thinking, take look at the link below:
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