This is an old revision of the document!
Experiment 5: Operational Amplifier
- Circuits on the breadboard
- Integrator
- Non-inverting Schmitt trigger
- Triangle–square-wave generator
- Pulse-width modulation and control of a DC motor
Preparation for the laboratory
in the ILIAS course
Read the materials for Experiment 5 here.
They will be published one week before the experiment.
Preparation for the oral short exam
For this experiment, you should be able to apply and explain the following concepts:
- “golden rules” for the negative feedback, idealized operational amplifier
- inverting operational amplifier
- Gain of operational amplifier
- Sum of currents at inverting input (KCL)
- Voltage at inverting input relaltive to GND (KVL)
- non-inverting operational amplifier
- operational amplifier used as current source (principle of function)
- operational amplifier used as low-pass filter, cut-off frequency calculation (Sallen-Key configuration)