View source for Op Amp

https://en.wikipedia.org/wiki/Operational_amplifier_applications

== Comparator ==
Simplest op amp circuit

== Non-Inverting amplifier ==
Amplifies the input voltage. Cannot go below unity.

For high power, output can go through a transistor.

== Schmitt Trigger ==
Uses positive feedback.

== Current Sensor ==
I had to do the math analysis to understand this. Configuration is a differential amplifier.

[[Category:Electronics]]