Uh, isn't the voltage ideally supposed to be roughly the same between both inputs with zero current going into them?When the non-inverting input of an op-amp is at a higher (more positive) voltage than the inverting input, the output goes positive. The amp does not invert the stimulus. Positive in, positive out.
When the inverting input is at a more positive voltage, the amp outputs a more negative voltage. Thus, the stimulus is inverted.
That's a start. Did it answer your question?
You are referring to an ideal opamp.Uh, isn't the voltage ideally supposed to be roughly the same between both inputs with zero current going into them?
I don't know how that would affect the polarities of the outputs with such small differences in voltages at the inputs.
Absolutely NOT!Applying positive feedback (to a Schmitt trigger) causes the opposite effect. A small amount of positive feedback is used to create a comparator with hysteresis or a Schmitt-trigger. With sufficient positive feedback the circuit will oscillate.
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by Aaron Carman
by Duane Benson
by Aaron Carman
by Duane Benson